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

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.
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

Links full text

Identifiers

Citation

V. Kaladzhyan, C. Bena, P. Simon. Characterizing p -wave superconductivity using the spin structure of Shiba states. Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 93 (21), ⟨10.1103/PhysRevB.93.214514⟩. ⟨cea-01495253⟩

Share

Metrics

Record views

85