Characterizing p -wave superconductivity using the spin structure of Shiba states

V. Kaladzhyan; C. Bena; P. Simon

Characterizing p -wave superconductivity using the spin structure of Shiba states

V. Kaladzhyan ^{1, 2} C. Bena ^{2, 1} P. Simon ³

1 LPS - Laboratoire de Physique des Solides

2 IPHT - Institut de Physique Théorique - UMR CNRS 3681

3 Laboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France

Abstract : Cooper pairs in two-dimensional unconventional superconductors with broken inversion symmetry are in a mixture of an even-parity spin-singlet pairing state with an odd-parity spin-triplet pairing state. We study the magnetic properties of the impurity bound states in such superconductors and find striking signatures in their spin polarization which allow to unambiguously discriminate a non-topological superconducting phase from a topological one. Moreover, we show how these properties, which could be measured using spin-polarized scanning tunneling microscopy (STM), also enable to determine the direction of the spin-triplet pairing vector of the host material and thus to distinguish between different types of unconventional pairing.

Document type :

Journal articles

Domain :

Physics [physics] / Condensed Matter [cond-mat] / Superconductivity [cond-mat.supr-con]

Complete list of metadatas

https://hal-cea.archives-ouvertes.fr/cea-01495253
Contributor : Emmanuelle de Laborderie <>
Submitted on : Friday, March 24, 2017 - 4:42:58 PM
Last modification on : Thursday, February 7, 2019 - 2:55:19 PM

Characterizing p -wave superconductivity using the spin structure of Shiba states

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Characterizing p -wave superconductivity using the spin structure of Shiba states

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