1T-TaS₂ as a quantum spin liquid
1T-TaS₂ is unique among transition metal dichalcogenides in that it is understood to be a correlation-driven insulator, where the unpaired electron in a 13-site cluster experiences enough correlation to form a Mott insulator. We argue, based on existing data, that this well-known material should be...
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| Published in: | Proceedings of the National Academy of Sciences - PNAS Vol. 114; no. 27; pp. 6996 - 7000 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
National Academy of Sciences
03-07-2017
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | 1T-TaS₂ is unique among transition metal dichalcogenides in that it is understood to be a correlation-driven insulator, where the unpaired electron in a 13-site cluster experiences enough correlation to form a Mott insulator. We argue, based on existing data, that this well-known material should be considered as a quantum spin liquid, either a fully gapped Z2 spin liquid or a Dirac spin liquid. We discuss the exotic states that emerge upon doping and propose further experimental probes. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Author contributions: K.T.L. and P.A.L. performed research; and P.A.L. wrote the paper. Contributed by Patrick A. Lee, May 26, 2017 (sent for review April 24, 2017; reviewed by Steven A. Kivelson and N. Phuan Ong) Reviewers: S.A.K., Stanford University; and N.P.O., Princeton University. |
| ISSN: | 0027-8424 1091-6490 |
| DOI: | 10.1073/pnas.1706769114 |