Floating topological phases
Floating topological phases
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DOI：
10.1103/physrevb.102.125136
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发表时间：
2020-06
影响因子：
3.7
通讯作者：
T. Devakul;S. Sondhi;S. Kivelson;E. Berg
中科院分区：
文献类型：
--
作者：
T. Devakul;S. Sondhi;S. Kivelson;E. Berg
虽然准二维（层状）材料可能具有高度各向异性，但它们的渐近长距离行为通常反映了物质的全三维相的特性。然而，某些拓扑有序的量子相可以渐近地不受面间耦合的影响。在这里，作者讨论了这种“浮动拓扑相”的稳定性。这种相可以在低温下产生不同的层间电阻率与层内电阻率之比。对这种发散的实验观察将构成拓扑相（例如自旋液体）存在的证据。
While quasi-two-dimensional (layered) materials can be highly anisotropic, their asymptotic long-distance behavior generally reflects the properties of a fully three dimensional phase of matter. However, certain topologically ordered quantum phases can be asymptotically impervious to interplane couplings. Here, the authors discuss the stability of such ``floating topological phases''. Such a phase can produce a divergent ratio of the interlayer to intralayer resistivity at low temperatures. Experimental observation of such a divergence would constitute proof of the existence of a topological (e.g., spin liquid) phase.