Fate of interaction-driven topological insulators under disorder
Fate of interaction-driven topological insulators under disorder
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无序状态下相互作用驱动的拓扑绝缘体的命运
DOI:
10.1103/physrevb.96.201104
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发表时间:
2017-10
期刊:
影响因子:
--
通讯作者:
Dmitry V. Efremov
中科院分区:
文献类型:
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作者:
Jing Wang;Carmine Ortix;Jeroen van den Brink;Dmitry V. Efremov
We analyze the effect of disorder on the weak-coupling instabilities of a quadratic band crossing point (QBCP) in two-dimensional Fermi systems, which, in the clean limit, display interaction-driven topological insulating phases. In the framework of a renormalization group procedure, which treats fermionic interactions and disorder on the same footing, we test all possible instabilities and identify the corresponding ordered phases in the presence of disorder for both single-valley and two-valley QBCP systems. We find that disorder generally suppresses the critical temperature at which the interaction-driven topologically nontrivial order sets in. Strong disorder can also drive a topological phase transition into a topologically trivial insulating state.
影响因子:
4.1
作者:
R. Stephenson
通讯作者:
R. Stephenson
DOI:
10.1017/cbo9780511973765
发表时间:
1999-04
期刊:
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影响因子:
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作者:
Subir Sachdev
通讯作者:
Subir Sachdev