Influence of the orbital effects on the Majorana quasi-particles in a nanowire
Influence of the orbital effects on the Majorana quasi-particles in a nanowire
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DOI：
10.1088/1361-648x/aa93ab
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发表时间：
2017-12-13
影响因子：
2.7
通讯作者：
Ptok, Andrzej
中科院分区：
文献类型：
--
作者：
Kiczek, Bartlomiej;Ptok, Andrzej
马约拉纳准粒子可以利用磁场以反磁（轨道）或顺磁效应的形式实现。在这两种情况下，磁场诱导物质的拓扑非平凡相。本文阐述了轨道效应对一维纳米线中顺磁效应诱导的马约拉纳束缚态的影响。讨论了轨道效应在系统态密度和本征态密度中的作用。此外，我们还展示了相图-磁场与磁通量，它显示了拓扑平凡和非平凡相之间的关系。表明马约拉纳束缚态存在于相对较小的轨道效应中。
Majorana quasi-particles can be realised using magnetic field in the form of diamagnetic (orbital) or paramagnetic effects. In both cases, the magnetic field induces a topologically non-trivial phase of matter. In this paper, the influence of orbital effects on Majorana bound states induced by paramagnetic effects in 1D nanowire is elaborated. The role of orbital effects in density of states and eigenstates of the system is also discussed. Additionally, we show the phase diagram-the magnetic field versus the magnetic flux, which displays a relation between topologically trivial and non-trivial phases. The Majorana bound states existence in the presence of relatively small orbital effects is indicated.