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Doping-driven structural phase transition and loss of superconductivity in MxFe1-xSe delta (M=Mn, Cu)

dc.contributor.author Huang, TW
dc.contributor.author Chen, TK
dc.contributor.author Yeh, KW
dc.contributor.author Ke, CT
dc.contributor.author Chen, CL
dc.contributor.author Huang, YL
dc.contributor.author Hsu, FC
dc.contributor.author Wu, MK
dc.contributor.author Wu, PM
dc.contributor.author Avdeev, M
dc.contributor.author Studer, AJ
dc.date.accessioned 2011-06-21T17:27:45Z
dc.date.available 2011-06-21T17:27:45Z
dc.date.issued 2010
dc.identifier.citation Huang,Tzu-Wen;Chen,Ta-Kun;Yeh,Kuo-Wei;Ke,Chung-Ting;Chen,Chi Liang;Huang,Yi-Lin;Hsu,Fong-Chi;Wu,Maw-Kuen;Wu,Phillip M.;Avdeev,Maxim;Studer,Andrew J.. 2010. Doping-driven structural phase transition and loss of superconductivity in MxFe1-xSe delta (M=Mn, Cu). Physical Review B 82(10): 104502-104502.
dc.identifier.issn 1098-0121
dc.identifier.uri https://hdl.handle.net/10161/4256
dc.description.abstract In this paper, we report the results of detailed studies on Mn and Cu substitution to Fe site of beta-FeSe, namely, MnxFe(1-x)Se(1-delta) and CuxFe1-xSe1-delta (delta equals to 0.03-0.05 based on our neutron-diffraction refinements). The results show that with only 10 at. % Cu doping the compound becomes a Mott insulator. Detailed temperature-dependent structural analyses of these Mn- and Cu-substituted compounds show that the structural transition, which is associated with the changes in the building block FeSe4 tetrahedron, is essential to the occurrence of superconductivity in beta-FeSe.
dc.language.iso en_US
dc.publisher American Physical Society (APS)
dc.relation.isversionof 10.1103/PhysRevB.82.104502
dc.subject powder diffractometer
dc.subject alpha-fese
dc.subject 43 k
dc.subject lao1-xfxfeas
dc.subject smfeaso1-xfx
dc.subject diagram
dc.subject opal
dc.subject physics, condensed matter
dc.title Doping-driven structural phase transition and loss of superconductivity in MxFe1-xSe delta (M=Mn, Cu)
dc.title.alternative
dc.type Other article
dc.description.version Version of Record
duke.date.pubdate 2010-9-2
duke.description.issue 10
duke.description.volume 82
dc.relation.journal Physical Review B
pubs.begin-page 104502


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