Skyrmion-induced bound states in a p-wave superconductor

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Details

Original languageEnglish
Article number214509
Pages (from-to)1-7
JournalPhysical Review B
Volume94
Issue number21
Publication statusPublished - 14 Dec 2016
MoE publication typeA1 Journal article-refereed

Researchers

Research units

  • Stockholm University

Abstract

In s-wave systems, it has been theoretically shown that a ferromagnetic film hosting a skyrmion can induce a bound state embedded in the opposite-spin continuum. In this work, we consider a case of skyrmion-induced state in a p-wave superconductor. We find that the skyrmion induces a bound state that generally resides within the spectral gap and is isolated from all other states, in contrast to the case of conventional superconductors. To this end, we derive an approximate expression for the T matrix, through which we calculate the spin-polarized local density of states which is observable in scanning tunneling microscopy measurements. We find the unique spectroscopic features of the skyrmion-induced bound state and discuss how our predictions could be employed as experimental probes for p-wave superconducting states.

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