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dc.contributor.authorGong, Dongliang
Xie, Tao
Lu, Xingye
Ren, Cong
Shan, Lei
Zhang, Rui
Dai, Pengcheng
Yang, Yi-feng
Luo, Huiqian
Li, Shiliang
dc.date.accessioned 2016-06-27T15:39:57Z
dc.date.available 2016-06-27T15:39:57Z
dc.date.issued 2016
dc.identifier.citation Gong, Dongliang, Xie, Tao, Lu, Xingye, et al.. "Electronic specific heat in BaFe2−xNixAs2." Physical Review B, 93, no. 13 (2016) American Physical Society: http://dx.doi.org/10.1103/PhysRevB.93.134520.
dc.identifier.urihttps://hdl.handle.net/1911/90578
dc.description.abstract We 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.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights Article 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.
dc.title Electronic specific heat in BaFe2−xNixAs2
dc.type Journal article
dc.citation.journalTitle Physical Review B
dc.citation.volumeNumber 93
dc.citation.issueNumber 13
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.93.134520
dc.type.publication publisher version
dc.citation.articleNumber 134520


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