Tunable odd-frequency triplet pairing states and skyrmion modes in chiral p-wave superconductor

Bogliubov-de Gennes equations are solved self-consistently to investigate the properties of bound states in chiral p-wave superconductive disks. It shows that either an s-wave or the mixed d- and s-wave state with odd-frequency and spin-triplet symmetry is induced at the vortex core, depending both...

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Published in:Scientific reports 2017-08, Vol.7 (1), p.9871-9, Article 9871
Main Authors: Lou, Yu-Feng, Wen, Lin, Zha, Guo-Qiao, Zhou, Shi-Ping
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Chirality
Energy
Humanities and Social Sciences
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description Bogliubov-de Gennes equations are solved self-consistently to investigate the properties of bound states in chiral p-wave superconductive disks. It shows that either an s-wave or the mixed d- and s-wave state with odd-frequency and spin-triplet symmetry is induced at the vortex core, depending both on the chirality of the pairing states and on the vortex topology. It is also found that the odd-frequency triplet even parity (OTE) bound state can be manipulated with a local non-magnetic potential. Interestingly, with an appropriate potential amplitude, the zero-energy OTE bound state can be stabilized at a distance from the vortex core and from the local potential. Possible existences of the Majorana fermion modes are expected if the particle-hole symmetry property is applied to the zero-energy OTE bound state. Moreover, skyrmion modes with an integer topological charge have been found to exist.
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subjects 639/766/119/1003
639/766/119/995
Chirality
Energy
Humanities and Social Sciences
Investigations
Mathematical models
multidisciplinary
Science
Science (multidisciplinary)
Symmetry
Topology
Vortices
title Tunable odd-frequency triplet pairing states and skyrmion modes in chiral p-wave superconductor
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