Trends in pressure-induced layer-selective half-collapsed tetragonal phases in the iron-based superconductor family AeAFe(4)As(4)

dc.contributor.author Borisov, Vladislav
dc.contributor.author Canfield, Paul
dc.contributor.author Valentí, Roser
dc.contributor.author Canfield, Paul
dc.contributor.department Ames Laboratory
dc.contributor.department Physics and Astronomy
dc.date 2019-09-22T18:51:19.000
dc.date.accessioned 2020-06-29T23:21:32Z
dc.date.available 2020-06-29T23:21:32Z
dc.date.issued 2018-08-01
dc.description.abstract <p>By performing pressure simulations within density functional theory for the family of iron-based superconductors AeAFe4As4 with Ae=Ca, Sr, Ba and A=K, Rb, Cs we predict in these systems the appearance of two consecutive half-collapsed tetragonal transitions at pressures Pc1 and Pc2, which have a different character in terms of their effect on the electronic structure. We find that, similar to previous studies for CaKFe4As4, spin-vortex magnetic fluctuations on the Fe sublattice play a key role for an accurate structure prediction in these materials at zero pressure. We identify clear trends of critical pressures and discuss the relevance of the collapsed phases in connection to magnetism and superconductivity. Finally, the intriguing cases of EuRbFe4As4 and EuCsFe4As4, where Eu magnetism coexists with superconductivity, are discussed as well in the context of half-collapsed phases.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_manuscripts/231/
dc.identifier.articleid 1236
dc.identifier.contextkey 13330419
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/231
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7158
dc.language.iso en
dc.relation.ispartofseries IS-J 9732
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_manuscripts/231/IS_J_9732.pdf|||Fri Jan 14 22:47:34 UTC 2022
dc.source.uri 10.1103/PhysRevB.98.064104
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Metallurgy
dc.title Trends in pressure-induced layer-selective half-collapsed tetragonal phases in the iron-based superconductor family AeAFe(4)As(4)
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication c5a8128b-7d98-4b8f-92d7-b1385e345713
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
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