Structural and Magnetic Phase Transitions near Optimal Superconductivity in BaFe2(As1−xPx)2

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dc.citation.firstpage157002en_US
dc.citation.issueNumber15en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber114en_US
dc.contributor.authorHu, Dingen_US
dc.contributor.authorLu, Xingyeen_US
dc.contributor.authorZhang, Wenliangen_US
dc.contributor.authorLuo, Huiqianen_US
dc.contributor.authorLi, Shiliangen_US
dc.contributor.authorWang, Peipeien_US
dc.contributor.authorChen, Genfuen_US
dc.contributor.authorHan, Feien_US
dc.contributor.authorBanjara, Shree R.en_US
dc.contributor.authorSapkota, A.en_US
dc.contributor.authorKreyssig, A.en_US
dc.contributor.authorGoldman, A.I.en_US
dc.contributor.authorYamani, Z.en_US
dc.contributor.authorNiedermayer, Christofen_US
dc.contributor.authorSkoulatos, Markosen_US
dc.contributor.authorGeorgii, Roberten_US
dc.contributor.authorKeller, T.en_US
dc.contributor.authorWang, Pengshuaien_US
dc.contributor.authorYu, Weiqiangen_US
dc.contributor.authorDai, Pengchengen_US
dc.date.accessioned2016-06-10T19:01:57Zen_US
dc.date.available2016-06-10T19:01:57Zen_US
dc.date.issued2015en_US
dc.description.abstractWe use nuclear magnetic resonance (NMR), high-resolution x-ray, and neutron scattering studies to study structural and magnetic phase transitions in phosphorus-doped BaFe2(As1−xPx)2. Previous transport, NMR, specific heat, and magnetic penetration depth measurements have provided compelling evidence for the presence of a quantum critical point (QCP) near optimal superconductivity at x=0.3. However, we show that the tetragonal-to-orthorhombic structural (Ts) and paramagnetic to antiferromagnetic (AF, TN) transitions in BaFe2(As1−xPx)2 are always coupled and approach TN≈Ts≥Tc (≈29  K) for x=0.29 before vanishing abruptly for x≥0.3. These results suggest that AF order in BaFe2(As1−xPx)2 disappears in a weakly first-order fashion near optimal superconductivity, much like the electron-doped iron pnictides with an avoided QCP.en_US
dc.identifier.citationHu, Ding, Lu, Xingye, Zhang, Wenliang, et al.. "Structural and Magnetic Phase Transitions near Optimal Superconductivity in BaFe2(As1−xPx)2." <i>Physical Review Letters,</i> 114, no. 15 (2015) American Physical Society: 157002. http://dx.doi.org/10.1103/PhysRevLett.114.157002.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.114.157002en_US
dc.identifier.urihttps://hdl.handle.net/1911/90490en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleStructural and Magnetic Phase Transitions near Optimal Superconductivity in BaFe2(As1−xPx)2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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