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Zhang G, Zulkharnay R, Ke X, Liao M, Liu L, Guo Y, Li Y, Rubahn HG, Moshchalkov VV, May PW. Unconventional Giant "Magnetoresistance" in Bosonic Semiconducting Diamond Nanorings. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211129. [PMID: 36800532 DOI: 10.1002/adma.202211129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/12/2023] [Indexed: 06/02/2023]
Abstract
The emergence of superconductivity in doped insulators such as cuprates and pnictides coincides with their doping-driven insulator-metal transitions. Above the critical doping threshold, a metallic state sets in at high temperatures, while superconductivity sets in at low temperatures. An unanswered question is whether the formation of Cooper pairsin a well-established metal will inevitably transform the host material into a superconductor, as manifested by a resistance drop. Here, this question is addressed by investigating the electrical transport in nanoscale rings (full loops) and half loops manufactured from heavily boron-doped diamond. It is shown that in contrast to the diamond half-loops (DHLs) exhibiting a metal-superconductor transition, the diamond nanorings (DNRs) demonstrate a sharp resistance increase up to 430% and a giant negative "magnetoresistance" below the superconducting transition temperature of the starting material. The finding of the unconventional giant negative "magnetoresistance", as distinct from existing categories of magnetoresistance, that is, the conventional giant magnetoresistance in magnetic multilayers, the colossal magnetoresistance in perovskites, and the geometric magnetoresistance in semiconductor-metal hybrids, reveals the transformation of the DNRs from metals to bosonic semiconductors upon the formation of Cooper pairs. DNRs like these could be used to manipulate Cooper pairs in superconducting quantum devices.
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Affiliation(s)
- Gufei Zhang
- Danish Institute for Advanced Study and Mads Clausen Institute, University of Southern Denmark, Alsion 2, Sonderborg, DK-6400, Denmark
| | - Ramiz Zulkharnay
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Xiaoxing Ke
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
| | - Meiyong Liao
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan
| | - Liwang Liu
- Laboratory for Soft Matter and Biophysics, Department of Physics and Astronomy, KU Leuven, Heverlee, B-3001, Belgium
| | - Yujie Guo
- Photonics Research Group, Department of Information Technology, Ghent University-IMEC, Ghent, 9052, Belgium
| | - Yejun Li
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics & Electronics and School of Materials Science & Engineering, Central South University, Changsha, 410083, China
| | - Horst-Günter Rubahn
- Danish Institute for Advanced Study and Mads Clausen Institute, University of Southern Denmark, Alsion 2, Sonderborg, DK-6400, Denmark
| | | | - Paul W May
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
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2
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Sobaszek M, Brzhezinskaya M, Olejnik A, Mortet V, Alam M, Sawczak M, Ficek M, Gazda M, Weiss Z, Bogdanowicz R. Highly Occupied Surface States at Deuterium-Grown Boron-Doped Diamond Interfaces for Efficient Photoelectrochemistry. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2208265. [PMID: 36949366 DOI: 10.1002/smll.202208265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Polycrystalline boron-doped diamond is a promising material for high-power aqueous electrochemical applications in bioanalytics, catalysis, and energy storage. The chemical vapor deposition (CVD) process of diamond formation and doping is totally diversified by using high kinetic energies of deuterium substituting habitually applied hydrogen. The high concentration of deuterium in plasma induces atomic arrangements and steric hindrance during synthesis reactions, which in consequence leads to a preferential (111) texture and more effective boron incorporation into the lattice, reaching a one order of magnitude higher density of charge carriers. This provides the surface reconstruction impacting surficial populations of CC dimers, CH, CO groups, and COOH termination along with enhanced kinetics of their abstraction, as revealed by high-resolution core-level spectroscopies. A series of local densities of states were computed, showing a rich set of highly occupied and localized surface states for samples deposited in deuterium, negating the connotations of band bending. The introduction of enhanced incorporation of boron into (111) facet of diamond leads to the manifestation of surface electronic states below the Fermi level and above the bulk valence band edge. This unique electronic band structure affects the charge transfer kinetics, electron affinity, and diffusion field geometry critical for efficient electrolysis, electrocatalysis, and photoelectrochemistry.
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Affiliation(s)
- Michał Sobaszek
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, 11/12 Narutowicza Str., Gdansk, 80-233, Poland
| | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Adrian Olejnik
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, 11/12 Narutowicza Str., Gdansk, 80-233, Poland
| | - Vincent Mortet
- Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, Prague 6, 166 27, Czech Republic
| | - Mahebub Alam
- Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, Prague 6, 166 27, Czech Republic
| | - Mirosław Sawczak
- The Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, Gdansk, 80-231, Poland
| | - Mateusz Ficek
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, 11/12 Narutowicza Str., Gdansk, 80-233, Poland
| | - Maria Gazda
- Department of Solid State Physics, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland
| | - Zdeněk Weiss
- CSc, FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Praha 8, 182 21, Czech Republic
| | - Robert Bogdanowicz
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, 11/12 Narutowicza Str., Gdansk, 80-233, Poland
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An C, Zhou Y, Chen C, Fei F, Song F, Park C, Zhou J, Rubahn HG, Moshchalkov VV, Chen X, Zhang G, Yang Z. Long-Range Ordered Amorphous Atomic Chains as Building Blocks of a Superconducting Quasi-One-Dimensional Crystal. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002352. [PMID: 32705735 DOI: 10.1002/adma.202002352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/01/2020] [Indexed: 06/11/2023]
Abstract
Crystalline and amorphous structures are two of the most common solid-state phases. Crystals having orientational and periodic translation symmetries are usually both short-range and long-range ordered, while amorphous materials have no long-range order. Short-range ordered but long-range disordered materials are generally categorized into amorphous phases. In contrast to the extensively studied crystalline and amorphous phases, the combination of short-range disordered and long-range ordered structures at the atomic level is extremely rare and so far has only been reported for solvated fullerenes under compression. Here, a report on the creation and investigation of a superconducting quasi-1D material with long-range ordered amorphous building blocks is presented. Using a diamond anvil cell, monocrystalline (TaSe4 )2 I is compressed and a system is created where the TaSe4 atomic chains are in amorphous state without breaking the orientational and periodic translation symmetries of the chain lattice. Strikingly, along with the amorphization of the atomic chains, the insulating (TaSe4 )2 I becomes a superconductor. The data provide critical insight into a new phase of solid-state materials. The findings demonstrate a first ever case where superconductivity is hosted by a lattice with periodic but amorphous constituent atomic chains.
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Affiliation(s)
- Chao An
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - Yonghui Zhou
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
| | - Chunhua Chen
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
| | - Fucong Fei
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
| | - Fengqi Song
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
| | - Changyong Park
- HPCAT, X-Ray Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Jianhui Zhou
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
| | - Horst-Günter Rubahn
- NanoSYD, Mads Clausen Institute and DIAS Danish Institute for Advanced Study, University of Southern Denmark, Alsion 2, Sonderborg, DK-6400, Denmark
| | | | - Xuliang Chen
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
| | - Gufei Zhang
- NanoSYD, Mads Clausen Institute and DIAS Danish Institute for Advanced Study, University of Southern Denmark, Alsion 2, Sonderborg, DK-6400, Denmark
| | - Zhaorong Yang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
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Zhang G, Samuely T, Iwahara N, Kačmarčík J, Wang C, May PW, Jochum JK, Onufriienko O, Szabó P, Zhou S, Samuely P, Moshchalkov VV, Chibotaru LF, Rubahn HG. Yu-Shiba-Rusinov bands in ferromagnetic superconducting diamond. SCIENCE ADVANCES 2020; 6:eaaz2536. [PMID: 32440544 PMCID: PMC7228758 DOI: 10.1126/sciadv.aaz2536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 03/03/2020] [Indexed: 06/11/2023]
Abstract
The combination of different exotic properties in materials paves the way for the emergence of their new potential applications. An example is the recently found coexistence of the mutually antagonistic ferromagnetism and superconductivity in hydrogenated boron-doped diamond, which promises to be an attractive system with which to explore unconventional physics. Here, we show the emergence of Yu-Shiba-Rusinov (YSR) bands with a spatial extent of tens of nanometers in ferromagnetic superconducting diamond using scanning tunneling spectroscopy. We demonstrate theoretically how a two-dimensional (2D) spin lattice at the surface of a three-dimensional (3D) superconductor gives rise to the YSR bands and how their density-of-states profile correlates with the spin lattice structure. The established strategy to realize new forms of the coexistence of ferromagnetism and superconductivity opens a way to engineer the unusual electronic states and also to design better-performing superconducting devices.
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Affiliation(s)
- Gufei Zhang
- NanoSYD, Mads Clausen Institute and DIAS Danish Institute for Advanced Study, University of Southern Denmark, Alsion 2, DK-6400 Sonderborg, Denmark
| | - Tomas Samuely
- Centre of Low Temperature Physics, Institute of Experimental Physics, Slovak Academy of Sciences & Faculty of Science, P. J. Safarik University, Kosice, Slovakia
| | - Naoya Iwahara
- Theory of Nanomaterials Group, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
- Department of Chemistry, National University of Singapore, Block S8 Level 3, 3 Science Drive 3, Singapore 117543, Singapore
| | - Jozef Kačmarčík
- Centre of Low Temperature Physics, Institute of Experimental Physics, Slovak Academy of Sciences & Faculty of Science, P. J. Safarik University, Kosice, Slovakia
| | - Changan Wang
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, Germany
| | - Paul W. May
- School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
| | - Johanna K. Jochum
- Laboratory of Solid State Physics and Magnetism, KU Leuven, B-3001 Heverlee, Belgium
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstrasse 1, 85748 Garching, Germany
| | - Oleksandr Onufriienko
- Centre of Low Temperature Physics, Institute of Experimental Physics, Slovak Academy of Sciences & Faculty of Science, P. J. Safarik University, Kosice, Slovakia
| | - Pavol Szabó
- Centre of Low Temperature Physics, Institute of Experimental Physics, Slovak Academy of Sciences & Faculty of Science, P. J. Safarik University, Kosice, Slovakia
| | - Shengqiang Zhou
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, Germany
| | - Peter Samuely
- Centre of Low Temperature Physics, Institute of Experimental Physics, Slovak Academy of Sciences & Faculty of Science, P. J. Safarik University, Kosice, Slovakia
| | | | - Liviu F. Chibotaru
- Theory of Nanomaterials Group, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Horst-Günter Rubahn
- NanoSYD, Mads Clausen Institute and DIAS Danish Institute for Advanced Study, University of Southern Denmark, Alsion 2, DK-6400 Sonderborg, Denmark
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Ye R, Han X, Kosynkin DV, Li Y, Zhang C, Jiang B, Martí AA, Tour JM. Laser-Induced Conversion of Teflon into Fluorinated Nanodiamonds or Fluorinated Graphene. ACS NANO 2018; 12:1083-1088. [PMID: 29328622 DOI: 10.1021/acsnano.7b05877] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Laser-assisted materials fabrication is an advanced technique that has propelled recent carbon synthesis approaches. Direct laser writing on polyimide or lignocellulose materials by a CO2 laser has successfully transformed the substrates into hierarchical graphene. However, formation of other carbon allotropes such as diamond and fullerene remains challenging. Here, we report the direct synthesis of fluorinated nanodiamonds or fluorinated graphene by treating polytetrafluoroethylene (Teflon, or PTFE) with a 9.3 μm pulsed CO2 laser under argon; no exogenous fluorine source is needed. The laser is part of a commercial laser cutting/scribing system that is found in most machine shops. Therefore, it is a readily accessible tool. This discovery could inspire future development for the laser-assisted synthesis of functionalized carbon allotropes.
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Affiliation(s)
| | - Xiao Han
- School of Materials Science and Engineering, Beihang University , Beijing 100191, China
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