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Lee Y, Choi YW, Lee K, Song C, Ercius P, Cohen ML, Kim K, Zettl A. 1D Magnetic MX 3 Single-Chains (M = Cr, V and X = Cl, Br, I). Adv Mater 2023:e2307942. [PMID: 37771062 DOI: 10.1002/adma.202307942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/20/2023] [Indexed: 09/30/2023]
Abstract
Magnetic materials in reduced dimensions are not only excellent platforms for fundamental studies of magnetism, but they play crucial roles in technological advances. The discovery of intrinsic magnetism in monolayer 2D van der Waals systems has sparked enormous interest, but the single-chain limit of 1D magnetic van der Waals materials has been largely unexplored. This paper reports on a family of 1D magnetic van der Waals materials with composition MX3 (M = Cr, V, and X = Cl, Br, I), prepared in fully-isolated fashion within the protective cores of carbon nanotubes. Atomic-resolution scanning transmission electron microscopy identifies unique structures that differ from the well-known 2D honeycomb lattice MX3 structure. Density functional theory calculations reveal charge-driven reversible magnetic phase transitions.
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Affiliation(s)
- Yangjin Lee
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Department of Physics, Yonsei University, Seoul, 03722, South Korea
- Center for Nanomedicine, Institute for Basic Science, Seoul, 03722, South Korea
| | - Young Woo Choi
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Kihyun Lee
- Department of Physics, Yonsei University, Seoul, 03722, South Korea
- Center for Nanomedicine, Institute for Basic Science, Seoul, 03722, South Korea
| | - Chengyu Song
- National Center for Electron Microscopy, The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Peter Ercius
- National Center for Electron Microscopy, The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Marvin L Cohen
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Kwanpyo Kim
- Department of Physics, Yonsei University, Seoul, 03722, South Korea
- Center for Nanomedicine, Institute for Basic Science, Seoul, 03722, South Korea
| | - Alex Zettl
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Kavli Energy NanoSciences Institute, University of California at Berkeley, Berkeley, CA, 94720, USA
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