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dc.contributor.author Wu, Phillip M. en_US
dc.date.accessioned 2011-06-21T17:27:45Z
dc.date.available 2011-06-21T17:27:45Z
dc.date.issued 2010 en_US
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. en_US
dc.identifier.issn 1098-0121 en_US
dc.identifier.uri http://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. en_US
dc.language.iso en_US en_US
dc.publisher AMER PHYSICAL SOC en_US
dc.relation.isversionof doi:10.1103/PhysRevB.82.104502 en_US
dc.subject powder diffractometer en_US
dc.subject alpha-fese en_US
dc.subject 43 k en_US
dc.subject lao1-xfxfeas en_US
dc.subject smfeaso1-xfx en_US
dc.subject diagram en_US
dc.subject opal en_US
dc.subject physics, condensed matter en_US
dc.title Doping-driven structural phase transition and loss of superconductivity in MxFe1-xSe delta (M=Mn, Cu) en_US
dc.title.alternative en_US
dc.description.version Version of Record en_US
duke.date.pubdate 2010-9-2 en_US
duke.description.endpage 104502 en_US
duke.description.issue 10 en_US
duke.description.startpage 104502 en_US
duke.description.volume 82 en_US
dc.relation.journal Physical Review B en_US

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