Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolution

Highlights Three-gap superconductivity with possible momentum dependence (anisotropy) in LiFeAs. Temperature dependences of the superconducting gaps indicate a moderate interband coupling. Superconducting energy parameters scale with T c under minor lithium deficiency.

Bibliographic Details
Main Authors: Svetoslav Kuzmichev, Tatiana Kuzmicheva, Igor Morozov, Alexander Boltalin, Andrey Shilov
Format: Article
Language:English
Published: Springer 2022-05-01
Series:SN Applied Sciences
Subjects:
Online Access:https://doi.org/10.1007/s42452-022-05057-1
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author Svetoslav Kuzmichev
Tatiana Kuzmicheva
Igor Morozov
Alexander Boltalin
Andrey Shilov
author_facet Svetoslav Kuzmichev
Tatiana Kuzmicheva
Igor Morozov
Alexander Boltalin
Andrey Shilov
author_sort Svetoslav Kuzmichev
collection DOAJ
description Highlights Three-gap superconductivity with possible momentum dependence (anisotropy) in LiFeAs. Temperature dependences of the superconducting gaps indicate a moderate interband coupling. Superconducting energy parameters scale with T c under minor lithium deficiency.
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spelling doaj.art-e931fae92fe245aa88ce50eef2695b2e2022-12-22T02:21:49ZengSpringerSN Applied Sciences2523-39632523-39712022-05-014611210.1007/s42452-022-05057-1Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolutionSvetoslav Kuzmichev0Tatiana Kuzmicheva1Igor Morozov2Alexander Boltalin3Andrey Shilov4Faculty of Physics, Lomonosov Moscow State UniversityGinzburg Center for High Temperature Superconductivity and Quantum Materials, Lebedev Physical Institute of the Russian Academy of SciencesDepartment of Chemistry, Lomonosov Moscow State UniversityDepartment of Chemistry, Lomonosov Moscow State UniversityGinzburg Center for High Temperature Superconductivity and Quantum Materials, Lebedev Physical Institute of the Russian Academy of SciencesHighlights Three-gap superconductivity with possible momentum dependence (anisotropy) in LiFeAs. Temperature dependences of the superconducting gaps indicate a moderate interband coupling. Superconducting energy parameters scale with T c under minor lithium deficiency.https://doi.org/10.1007/s42452-022-05057-1Unconventional superconductivityMultiple-band superconductorsPnictidesLiFeAsTunneling spectroscopyMultiple Andreev reflections
spellingShingle Svetoslav Kuzmichev
Tatiana Kuzmicheva
Igor Morozov
Alexander Boltalin
Andrey Shilov
Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolution
SN Applied Sciences
Unconventional superconductivity
Multiple-band superconductors
Pnictides
LiFeAs
Tunneling spectroscopy
Multiple Andreev reflections
title Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolution
title_full Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolution
title_fullStr Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolution
title_full_unstemmed Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolution
title_short Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: three superconducting order parameters and their temperature evolution
title_sort multiple andreev reflections effect spectroscopy of lifeas single crystals three superconducting order parameters and their temperature evolution
topic Unconventional superconductivity
Multiple-band superconductors
Pnictides
LiFeAs
Tunneling spectroscopy
Multiple Andreev reflections
url https://doi.org/10.1007/s42452-022-05057-1
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