期刊
EPL
卷 105, 期 3, 页码 -出版社
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/105/37011
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Topological superconductors (TSCs) may undergo transitions between phases with different topological numbers which are related to the presence of gapless (Majorana) edge states. In a TSC the charge Hall conductivity, sigma(xy), is not quantized and evolves continuously between different topological phases. Here we show that in two-dimensional Z-TSC the derivatives of sigma(xy) display sharp features signaling the topological transitions. We consider in detail the case of a triplet superconductor with p-wave symmetry in the presence of Rashba spin-orbit coupling and externally applied Zeeman spin splitting. We generalize to the cases where the normal system is already topologically non-trivial. Copyright (C) EPLA, 2014
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