超导电性
拓扑(电路)
物理
凝聚态物理
数学
组合数学
作者
Xu Dou,Kangjun Seo,Bruno Uchoa
出处
期刊:Physical review
日期:2019-03-04
卷期号:99 (10)
被引量:1
标识
DOI:10.1103/physrevb.99.104503
摘要
We address the possible emergence of spin triplet superconductivity in CrO$_{2}$ bilayers, which are half-metals with fully spin-polarized conducting bands. Starting from a lattice model, we show that chiral $p+ip$ states compete with non-chiral $p$-wave ones. At large doping, the $p+ip$ channel has a sequence of topological phase transitions that can be tuned by gating effects and interaction strength. Among several phases, we find chiral topological phases having a single Majorana mode at the edge. We show that different topological superconducting phases could spontaneously emerge in the vicinity of the van-Hove singularities of the band.
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