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

Kaladzhyan, V. and Bena, C. and Simon, P.. (2016) Characterizing $p$-wave superconductivity using the spin structure of Shiba states. Physical Review B, 93. p. 214514.

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Official URL: https://edoc.unibas.ch/85171/

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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 one to unambiguously discriminate a nontopological 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 one to determine the direction of the spin-triplet pairing vector of the host material and thus to distinguish between different types of unconventional pairing.
Faculties and Departments:05 Faculty of Science > Departement Physik
UniBasel Contributors:Kaladzhyan, Vardan
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:18 Nov 2021 15:22
Deposited On:18 Nov 2021 15:22

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