1T-TaS2 as a quantum spin liquid
1T-TaS2 as a quantum spin liquid
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DOI：
10.1073/pnas.1706769114
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发表时间：
2017-07-03
影响因子：
11.1
通讯作者：
Lee, Patrick A.
中科院分区：
文献类型：
--
作者：
Law, K. T.;Lee, Patrick A.
1T-TaS2在过渡金属二卤化物中是独一无二的，因为它被认为是一个关联驱动的绝缘体，其中13位簇中的未配对电子经历了足够的关联来形成Mott绝缘体。基于现有的数据，我们认为这种众所周知的材料应该被认为是量子自旋液体，或者是完全带隙的Z2自旋液体，或者是狄拉克自旋液体。我们讨论了掺杂后出现的奇异状态，并提出了进一步的实验探索。
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.