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Article overview
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Topological nematic phase in Dirac semi-metals | | Rui-Xing Zhang
; Jimmy A. Hutasoit
; Yan Sun
; Binghai Yan
; Cenke Xu
; Chao-Xing Liu
; | | Date: |
1 Mar 2015 | | Abstract: | We study the interaction effect in a three dimensional Dirac semimetal and
find that two competing orders, charge-density-wave orders and nematic orders,
can be induced to gap the Dirac points. Applying a magnetic field can further
induce an instability towards forming these ordered phases. The charge density
wave phase is similar as that of a Weyl semimetal while the nematic phase is
unique for Dirac semimetals. Gapless zero modes are found in the vortex core
formed by nematic order parameters, indicating the topological nature of
nematic phases. The nematic phase can be observed experimentally using scanning
tunnelling microscopy. | | Source: | arXiv, 1503.0358 | | Services: | Forum | Review | PDF | Favorites | |
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