1
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Zhai W, Li Z, Wang Y, Zhai L, Yao Y, Li S, Wang L, Yang H, Chi B, Liang J, Shi Z, Ge Y, Lai Z, Yun Q, Zhang A, Wu Z, He Q, Chen B, Huang Z, Zhang H. Phase Engineering of Nanomaterials: Transition Metal Dichalcogenides. Chem Rev 2024; 124:4479-4539. [PMID: 38552165 DOI: 10.1021/acs.chemrev.3c00931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Crystal phase, a critical structural characteristic beyond the morphology, size, dimension, facet, etc., determines the physicochemical properties of nanomaterials. As a group of layered nanomaterials with polymorphs, transition metal dichalcogenides (TMDs) have attracted intensive research attention due to their phase-dependent properties. Therefore, great efforts have been devoted to the phase engineering of TMDs to synthesize TMDs with controlled phases, especially unconventional/metastable phases, for various applications in electronics, optoelectronics, catalysis, biomedicine, energy storage and conversion, and ferroelectrics. Considering the significant progress in the synthesis and applications of TMDs, we believe that a comprehensive review on the phase engineering of TMDs is critical to promote their fundamental studies and practical applications. This Review aims to provide a comprehensive introduction and discussion on the crystal structures, synthetic strategies, and phase-dependent properties and applications of TMDs. Finally, our perspectives on the challenges and opportunities in phase engineering of TMDs will also be discussed.
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Affiliation(s)
- Wei Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Zijian Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Yongji Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Li Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Yao Yao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Siyuan Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Lixin Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Hua Yang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Banlan Chi
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Jinzhe Liang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Zhenyu Shi
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Yiyao Ge
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhuangchai Lai
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Qinbai Yun
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - An Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Zhiying Wu
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Bo Chen
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Zhiqi Huang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
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2
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Marfoua B, Hong J. First-Principles Investigation of Simultaneous Thermoelectric Power Generation and Active Cooling in a Bifunctional Semimetal ZrSeTe Janus Structure. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:234. [PMID: 38276752 PMCID: PMC10818368 DOI: 10.3390/nano14020234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/11/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
Traditional thermoelectric materials often face a trade-off between efficient power generation (high ZT) and cooling performance. Here, we explore the potential of achieving simultaneous thermoelectric power generation and cooling capability in the recently fabricated bulk ZrSeTe Janus structure using first-principles density functional theory (DFT). The layered ZrSeTe Janus structure exhibits a semimetal character with anisotropic transport properties along the in-plane and out-of-plane directions. Our DFT calculations, including the explicit calculation of relaxation time, reveal a maximum ZT of ~0.065 in the out-of-plane direction at 300 K which is one order of magnitude larger than that in the in-plane direction (ZT~0.006). Furthermore, the thermoelectric cooling performance is also investigated. The in-plane direction shows a cooling performance of 13 W/m·K and a coefficient of performance (COPmax) of ~90 with a temperature difference (ΔT) of 30 K, while the out-of-plane direction has a cooling performance of 2.5 W/m·K and COPmax of ~2.5. Thus, the out-of-plane current from the thermoelectric power generation can be utilized as an in-plane current source for active heat pumping. Consequently, we propose that the semimetal ZrSeTe Janus structure can display bifunctional thermoelectric properties for simultaneous thermoelectric power generation and active cooling.
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Affiliation(s)
| | - Jisang Hong
- Department of Physics, Pukyong National University, Busan 48513, Republic of Korea;
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3
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Zhu S, Wu J, Zhu P, Pei C, Wang Q, Jia D, Wang X, Zhao Y, Gao L, Li C, Cao W, Zhang M, Zhang L, Li M, Gou H, Yang W, Sun J, Chen Y, Wang Z, Yao Y, Qi Y. Pressure-Induced Superconductivity and Topological Quantum Phase Transitions in the Topological Semimetal ZrTe 2. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301332. [PMID: 37944509 PMCID: PMC10724415 DOI: 10.1002/advs.202301332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 09/04/2023] [Indexed: 11/12/2023]
Abstract
Topological transition metal dichalcogenides (TMDCs) have attracted much attention due to their potential applications in spintronics and quantum computations. In this work, the structural and electronic properties of topological TMDCs candidate ZrTe2 are systematically investigated under high pressure. A pressure-induced Lifshitz transition is evidenced by the change of charge carrier type as well as the Fermi surface. Superconductivity is observed at around 8.3 GPa without structural phase transition. A typical dome-shape phase diagram is obtained with the maximum Tc of 5.6 K for ZrTe2 . Furthermore, the theoretical calculations suggest the presence of multiple pressure-induced topological quantum phase transitions, which coexists with emergence of superconductivity. The results demonstrate that ZrTe2 with nontrivial topology of electronic states displays new ground states upon compression.
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Affiliation(s)
- Shihao Zhu
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Juefei Wu
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Peng Zhu
- Centre for Quantum PhysicsKey Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE)School of PhysicsBeijing Institute of TechnologyBeijing100081China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic SystemsBeijing Institute of TechnologyBeijing100081China
- Material Science CenterYangtze Delta Region Academy of Beijing Institute of TechnologyJiaxing314011China
| | - Cuiying Pei
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Qi Wang
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
- ShanghaiTech Laboratory for Topological PhysicsShanghaiTech UniversityShanghai201210China
| | - Donghan Jia
- Center for High Pressure Science and Technology Advanced ResearchShanghai201203China
| | - Xinyu Wang
- Center for High Pressure Science and Technology Advanced ResearchShanghai201203China
| | - Yi Zhao
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Lingling Gao
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Changhua Li
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Weizheng Cao
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Mingxin Zhang
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
| | - Lili Zhang
- Shanghai Synchrotron Radiation FacilityShanghai Advanced Research InstituteChinese Academy of SciencesShanghai201203China
| | - Mingtao Li
- Center for High Pressure Science and Technology Advanced ResearchShanghai201203China
| | - Huiyang Gou
- Center for High Pressure Science and Technology Advanced ResearchShanghai201203China
| | - Wenge Yang
- Center for High Pressure Science and Technology Advanced ResearchShanghai201203China
| | - Jian Sun
- National Laboratory of Solid State MicrostructuresSchool of Physics and Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210093China
| | - Yulin Chen
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
- ShanghaiTech Laboratory for Topological PhysicsShanghaiTech UniversityShanghai201210China
- Department of PhysicsClarendon LaboratoryUniversity of OxfordParks RoadOxfordOX1 3PUUK
| | - Zhiwei Wang
- Centre for Quantum PhysicsKey Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE)School of PhysicsBeijing Institute of TechnologyBeijing100081China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic SystemsBeijing Institute of TechnologyBeijing100081China
- Material Science CenterYangtze Delta Region Academy of Beijing Institute of TechnologyJiaxing314011China
| | - Yugui Yao
- Centre for Quantum PhysicsKey Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE)School of PhysicsBeijing Institute of TechnologyBeijing100081China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic SystemsBeijing Institute of TechnologyBeijing100081China
| | - Yanpeng Qi
- School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China
- ShanghaiTech Laboratory for Topological PhysicsShanghaiTech UniversityShanghai201210China
- Shanghai Key Laboratory of High‐resolution Electron MicroscopyShanghaiTech UniversityShanghai201210China
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4
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Wen X, Lei W, Li X, Di B, Zhou Y, Zhang J, Zhang Y, Li L, Chang H, Zhang W. ZrTe 2 Compound Dirac Semimetal Contacts for High-Performance MoS 2 Transistors. NANO LETTERS 2023; 23:8419-8425. [PMID: 37708326 DOI: 10.1021/acs.nanolett.3c01554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Recent investigations reveal elemental semimetal (Bi and Sb) contacts fabricated with conventional deposition processes exhibit a remarkable capacity of approaching the quantum limit in two-dimensional (2D) semiconductor contacts, implying it might be an optimal option to solve the contact issue of 2D semiconductor electronics. Here, we demonstrate novel compound Dirac semimetal ZrTe2 contacts to MoS2 constructed by a nondestructive van der Waals (vdW) transfer process, exhibiting excellent ohmic contact characteristics with a negligible Schottky barrier. The band hybridization between ZrTe2 and MoS2 was verified. The bilayer MoS2 transistor with a 250 nm channel length on a 20 nm thick hexagonal boron nitride (h-BN) exhibits an ION/IOFF current ratio over 105 and an on-state current of 259 μA μm-1. The current results reveal that 2D compound semimetals with vdW contacts can offer a diverse selection of proper semimetals with adjustable work functions for the next-generation 2D-based beyond-silicon electronics.
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Affiliation(s)
- Xiaokun Wen
- Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Shenzhen R&D Center of Huazhong University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Wenyu Lei
- Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Shenzhen R&D Center of Huazhong University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Xinlu Li
- School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
| | - Boyuan Di
- Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Shenzhen R&D Center of Huazhong University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Ye Zhou
- School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
| | - Jia Zhang
- School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
| | - Yuhui Zhang
- Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Shenzhen R&D Center of Huazhong University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Liufan Li
- Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Shenzhen R&D Center of Huazhong University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Haixin Chang
- Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Shenzhen R&D Center of Huazhong University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Wenfeng Zhang
- Center for Joining and Electronic Packaging, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Shenzhen R&D Center of Huazhong University of Science and Technology, Shenzhen 518000, People's Republic of China
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5
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Correa L, Ferreira PP, de Faria LR, Fim VM, da Luz MS, Torikachvili MS, Heil C, Eleno LTF, Machado AJS. Superconductivity in Te-Deficient ZrTe 2. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:5162-5168. [PMID: 36960103 PMCID: PMC10026068 DOI: 10.1021/acs.jpcc.2c08836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/27/2023] [Indexed: 06/18/2023]
Abstract
We present structural, electrical, and thermoelectric potential measurements on high-quality single crystals of ZrTe1.8 grown from isothermal chemical vapor transport. These measurements show that the Te-deficient ZrTe1.8, which forms the same structure as the nonsuperconducting ZrTe2, is superconducting below 3.2 K. The temperature dependence of the upper critical field (H c2) deviates from the behavior expected in conventional single-band superconductors, being best described by an electron-phonon two-gap superconducting model with strong intraband coupling. For the ZrTe1.8 single crystals, the Seebeck potential measurements suggest that the charge carriers are predominantly negative, in agreement with the ab initio calculations. Through first-principles calculations within DFT, we show that the slight reduction of Te occupancy in ZrTe2 unexpectedly gives origin to density of states peaks at the Fermi level due to the formation of localized Zr-d bands, possibly promoting electronic instabilities at the Fermi level and an increase at the critical temperature according to the standard BCS theory. These findings highlight that the Te deficiency promotes the electronic conditions for the stability of the superconducting ground state, suggesting that defects can fine-tune the electronic structure to support superconductivity.
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Affiliation(s)
- Lucas
E. Correa
- Universidade
de São Paulo, Escola de Engenharia
de Lorena, DEMAR, 12612-550 Lorena, Brazil
| | - Pedro P. Ferreira
- Universidade
de São Paulo, Escola de Engenharia
de Lorena, DEMAR, 12612-550 Lorena, Brazil
- Institute
of Theoretical and Computational Physics, Graz University of Technology, NAWI Graz, 8010 Graz, Austria
| | - Leandro R. de Faria
- Universidade
de São Paulo, Escola de Engenharia
de Lorena, DEMAR, 12612-550 Lorena, Brazil
| | - Vitor M. Fim
- Universidade
de São Paulo, Escola de Engenharia
de Lorena, DEMAR, 12612-550 Lorena, Brazil
| | - Mario S. da Luz
- Instituto
de Ciências Tecnológicas e Exatas, Universidade Federal do Triângulo Mineiro, 38025-180 Uberaba, Minas Gerais, Brazil
| | - Milton S. Torikachvili
- Department
of Physics, San Diego State University, San Diego, California 92182-1233, United States
| | - Christoph Heil
- Institute
of Theoretical and Computational Physics, Graz University of Technology, NAWI Graz, 8010 Graz, Austria
| | - Luiz T. F. Eleno
- Universidade
de São Paulo, Escola de Engenharia
de Lorena, DEMAR, 12612-550 Lorena, Brazil
| | - Antonio J. S. Machado
- Universidade
de São Paulo, Escola de Engenharia
de Lorena, DEMAR, 12612-550 Lorena, Brazil
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6
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Signatures of the exciton gas phase and its condensation in monolayer 1T-ZrTe 2. Nat Commun 2023; 14:1116. [PMID: 36849499 PMCID: PMC9971207 DOI: 10.1038/s41467-023-36857-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 02/16/2023] [Indexed: 03/01/2023] Open
Abstract
The excitonic insulator (EI) is a Bose-Einstein condensation (BEC) of excitons bound by electron-hole interaction in a solid, which could support high-temperature BEC transition. The material realization of EI has been challenged by the difficulty of distinguishing it from a conventional charge density wave (CDW) state. In the BEC limit, the preformed exciton gas phase is a hallmark to distinguish EI from conventional CDW, yet direct experimental evidence has been lacking. Here we report a distinct correlated phase beyond the 2×2 CDW ground state emerging in monolayer 1T-ZrTe2 and its investigation by angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM). The results show novel band- and energy-dependent folding behavior in a two-step process, which is the signatures of an exciton gas phase prior to its condensation into the final CDW state. Our findings provide a versatile two-dimensional platform that allows tuning of the excitonic effect.
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7
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Xiao Y, Xiong C, Chen MM, Wang S, Fu L, Zhang X. Structure modulation of two-dimensional transition metal chalcogenides: recent advances in methodology, mechanism and applications. Chem Soc Rev 2023; 52:1215-1272. [PMID: 36601686 DOI: 10.1039/d1cs01016f] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Together with the development of two-dimensional (2D) materials, transition metal dichalcogenides (TMDs) have become one of the most popular series of model materials for fundamental sciences and practical applications. Due to the ever-growing requirements of customization and multi-function, dozens of modulated structures have been introduced in TMDs. In this review, we present a systematic and comprehensive overview of the structure modulation of TMDs, including point, linear and out-of-plane structures, following and updating the conventional classification for silicon and related bulk semiconductors. In particular, we focus on the structural characteristics of modulated TMD structures and analyse the corresponding root causes. We also summarize the recent progress in modulating methods, mechanisms, properties and applications based on modulated TMD structures. Finally, we demonstrate challenges and prospects in the structure modulation of TMDs and forecast potential directions about what and how breakthroughs can be achieved.
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Affiliation(s)
- Yao Xiao
- Collaborative Innovation Centre for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Chengyi Xiong
- Collaborative Innovation Centre for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Miao-Miao Chen
- Collaborative Innovation Centre for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Shengfu Wang
- Collaborative Innovation Centre for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Lei Fu
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, P. R. China. .,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China.
| | - Xiuhua Zhang
- Collaborative Innovation Centre for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China.
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8
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Ou Y, Yanez W, Xiao R, Stanley M, Ghosh S, Zheng B, Jiang W, Huang YS, Pillsbury T, Richardella A, Liu C, Low T, Crespi VH, Mkhoyan KA, Samarth N. ZrTe 2/CrTe 2: an epitaxial van der Waals platform for spintronics. Nat Commun 2022; 13:2972. [PMID: 35624122 PMCID: PMC9142486 DOI: 10.1038/s41467-022-30738-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 05/16/2022] [Indexed: 11/08/2022] Open
Abstract
The rapid discovery of two-dimensional (2D) van der Waals (vdW) quantum materials has led to heterostructures that integrate diverse quantum functionalities such as topological phases, magnetism, and superconductivity. In this context, the epitaxial synthesis of vdW heterostructures with well-controlled interfaces is an attractive route towards wafer-scale platforms for systematically exploring fundamental properties and fashioning proof-of-concept devices. Here, we use molecular beam epitaxy to synthesize a vdW heterostructure that interfaces two material systems of contemporary interest: a 2D ferromagnet (1T-CrTe2) and a topological semimetal (ZrTe2). We find that one unit-cell (u.c.) thick 1T-CrTe2 grown epitaxially on ZrTe2 is a 2D ferromagnet with a clear anomalous Hall effect. In thicker samples (12 u.c. thick CrTe2), the anomalous Hall effect has characteristics that may arise from real-space Berry curvature. Finally, in ultrathin CrTe2 (3 u.c. thickness), we demonstrate current-driven magnetization switching in a full vdW topological semimetal/2D ferromagnet heterostructure device.
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Affiliation(s)
- Yongxi Ou
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Wilson Yanez
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Run Xiao
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Max Stanley
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Supriya Ghosh
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Boyang Zheng
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Wei Jiang
- Department of Electrical & Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Yu-Sheng Huang
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Timothy Pillsbury
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Anthony Richardella
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Chaoxing Liu
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Tony Low
- Department of Electrical & Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
- School of Physics & Astronomy, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Vincent H Crespi
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - K Andre Mkhoyan
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Nitin Samarth
- Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA.
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9
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Ledneva AY, Chebanova GE, Artemkina SB, Lavrov AN. CRYSTALLINE AND NANOSTRUCTURED MATERIALS BASED ON TRANSITION METAL DICHALCOGENIDES: SYNTHESIS AND ELECTRONIC PROPERTIES. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622020020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Ren MQ, Han S, Fan JQ, Wang L, Wang P, Ren W, Peng K, Li S, Wang SZ, Zheng FW, Zhang P, Li F, Ma X, Xue QK, Song CL. Semiconductor-Metal Phase Transition and Emergent Charge Density Waves in 1 T-ZrX 2 (X = Se, Te) at the Two-Dimensional Limit. NANO LETTERS 2022; 22:476-484. [PMID: 34978815 DOI: 10.1021/acs.nanolett.1c04372] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A charge density wave (CDW) is a collective quantum phenomenon in metals and features a wavelike modulation of the conduction electron density. A microscopic understanding and experimental control of this many-body electronic state in atomically thin materials remain hot topics in materials physics. By means of material engineering, we realized a dimensionality and Zr intercalation induced semiconductor-metal phase transition in 1T-ZrX2 (X = Se, Te) ultrathin films, accompanied by a commensurate 2 × 2 CDW order. Furthermore, we observed a CDW energy gap of up to 22 meV around the Fermi level. Fourier-transformed scanning tunneling microscopy and angle-resolved photoemission spectroscopy reveal that 1T-ZrX2 films exhibit the simplest Fermi surface among the known CDW materials in TMDCs, consisting only of a Zr 4d derived elliptical electron conduction band at the corners of the Brillouin zone.
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Affiliation(s)
- Ming-Qiang Ren
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - Sha Han
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - Jia-Qi Fan
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - Li Wang
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Pengdong Wang
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Wei Ren
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Kun Peng
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Shujing Li
- College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Shu-Ze Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fa-Wei Zheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
| | - Ping Zhang
- College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Fangsen Li
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Xucun Ma
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
- Frontier Science Center for Quantum Information, Beijing 100084, People's Republic of China
| | - Qi-Kun Xue
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
- Frontier Science Center for Quantum Information, Beijing 100084, People's Republic of China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, People's Republic of China
| | - Can-Li Song
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
- Frontier Science Center for Quantum Information, Beijing 100084, People's Republic of China
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11
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Rezaei SE, Zebarjadi M, Esfarjani K. Effect of exchange-correlation functional type and spin-orbit coupling on thermoelectric properties of ZrTe2. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Muhammad Z, Usman M, Ullah S, Zhang B, Lu Q, Zhu L, Hu R. Lattice dynamics, optical and thermal properties of quasi-two-dimensional anisotropic layered semimetal ZrTe 2. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00553g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, an investigation was conducted on the vibrational properties exhibited by 2D layered zirconium ditelluride by employing Raman spectroscopy and confirmed by DFT calculation.
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Affiliation(s)
- Zahir Muhammad
- Hefei Innovation Research Institute
- School of Microelectronics
- Beihang University
- Hefei
- P. R. China
| | - Muhammad Usman
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education Guangdong Province
- College of Physics Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
- P.R. China
| | - Sami Ullah
- Shenyang National Laboratory for Materials Science
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
| | - Bo Zhang
- National Synchrotron Radiation Laboratory
- University of Science and Technology of China
- Hefei 230029
- China
| | - Qixiao Lu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education Guangdong Province
- College of Physics Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
- P.R. China
| | - Ling Zhu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education Guangdong Province
- College of Physics Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
- P.R. China
| | - Rui Hu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education Guangdong Province
- College of Physics Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
- P.R. China
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