Electronic specific heat in BaFe2−xNixAs2

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dc.citation.articleNumber134520en_US
dc.citation.issueNumber13en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber93en_US
dc.contributor.authorGong, Dongliangen_US
dc.contributor.authorXie, Taoen_US
dc.contributor.authorLu, Xingyeen_US
dc.contributor.authorRen, Congen_US
dc.contributor.authorShan, Leien_US
dc.contributor.authorZhang, Ruien_US
dc.contributor.authorDai, Pengchengen_US
dc.contributor.authorYang, Yi-fengen_US
dc.contributor.authorLuo, Huiqianen_US
dc.contributor.authorLi, Shiliangen_US
dc.date.accessioned2016-06-27T15:39:57Zen_US
dc.date.available2016-06-27T15:39:57Zen_US
dc.date.issued2016en_US
dc.description.abstractWe have systematically studied the low-temperature specific heat of the BaFe2−xNixAs2 single crystals covering the whole superconducting dome. Using the nonsuperconducting heavily overdoped x=0.3 sample as a reference for the phonon contribution to the specific heat, we find that the normal-state electronic specific heats in the superconducting samples may have a nonlinear temperature dependence, which challenges previous results in the electron-doped Ba-122 iron-based superconductors. A model based on the presence of ferromagnetic spin fluctuations may explain the data between x=0.1 and x=0.15, suggesting the important role of Fermi-surface topology in understanding the normal-state electronic states.en_US
dc.identifier.citationGong, Dongliang, Xie, Tao, Lu, Xingye, et al.. "Electronic specific heat in BaFe2−xNixAs2." <i>Physical Review B,</i> 93, no. 13 (2016) American Physical Society: http://dx.doi.org/10.1103/PhysRevB.93.134520.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.93.134520en_US
dc.identifier.urihttps://hdl.handle.net/1911/90578en_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.titleElectronic specific heat in BaFe2−xNixAs2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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