Topological phase transition to Abelian anyon phases due to off-diagonal exchange interaction in the Kitaev spin liquid state
Topological phase transition to Abelian anyon phases due to off-diagonal exchange interaction in the Kitaev spin liquid state
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由于基塔耶夫自旋液态中的非对角线交换相互作用,拓扑相变到阿贝尔任意子相
DOI:
10.1103/physrevb.102.174414
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发表时间:
2020
影响因子:
3.7
通讯作者:
Fujimoto Satoshi
中科院分区:
文献类型:
--
作者:
Takikawa Daichi;Fujimoto Satoshi
We investigate how the Kitaev spin liquid state described by Majorana fermions coupled withgauge fields is affected by non-Kitaev interactions which exist in real candidate materials of the Kitaev magnet. It is found that the off-diagonal exchange interaction referred to as theterm dramatically changes the Majorana band structure in the case of the antiferromagnetic Kitaev interaction and gives rise to a topological phase transition from a non-Abelian topological phase with the Chern number equal toto an Abelian phase with the Chern number equal to, in which thevortices behave as Abelian anyons. On the other hand, other non-Kitaev interactions such as the Heisenberg interaction and theterm only affect the bandwidth of the Majorana band as long as the spin liquid state is not destabilized.
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DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
Yatsushiro Megumi;Oiwa Rikuto;Kusunose Hiroaki;Hayami Satoru;那須譲治
通讯作者:
那須譲治
影响因子:
3.3
作者:
Katukuri, Vamshi M.;Nishimoto, S.;van den Brink, Jeroen
通讯作者:
van den Brink, Jeroen
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
J. Rau;H. Kee
通讯作者:
H. Kee
影响因子:
64.8
作者:
Kasahara, Y.;Ohnishi, T.;Matsuda, Y.
通讯作者:
Matsuda, Y.