1T-TaS₂ as a quantum spin liquid
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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. Keywords: spin liquid; Mott insulator; transition metal dichalcogenide
Date issued
2017-05Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences (U.S.)
Citation
Law, K. T., and Patrick A. Lee. “1T-TaS₂ as a Quantum Spin Liquid.” Proceedings of the National Academy of Sciences 114, 27 (June 2017): 6996–7000 © 2017 National Academy of Sciences
Version: Final published version
ISSN
0027-8424
1091-6490