Doping effects of Cr on the physical properties of BaFe1.9−xNi0.1CrxAs2

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dc.citation.articleNumber014512en_US
dc.citation.issueNumber1en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber98en_US
dc.contributor.authorGong, Dongliangen_US
dc.contributor.authorXie, Taoen_US
dc.contributor.authorZhang, Ruien_US
dc.contributor.authorBirk, Jonasen_US
dc.contributor.authorNiedermayer, Christofen_US
dc.contributor.authorHan, Feien_US
dc.contributor.authorLapidus, S.H.en_US
dc.contributor.authorDai, Pengchengen_US
dc.contributor.authorLi, Shiliangen_US
dc.contributor.authorLuo, Huiqianen_US
dc.date.accessioned2018-11-01T14:28:10Zen_US
dc.date.available2018-11-01T14:28:10Zen_US
dc.date.issued2018en_US
dc.description.abstractWe present a systematic study on the heavily Cr doped iron pnictides BaFe1.9−xNi0.1CrxAs2 by using elastic neutron scattering, high-resolution synchrotron x-ray diffraction (XRD), resistivity, and Hall transport measurements. When the Cr concentration increases from x=0 to 0.8, neutron diffraction experiments suggest that the collinear antiferromagnetism persists in the whole doping range, where the Néel temperature TN coincides with the tetragonal-to-orthorhombic structural transition temperature Ts, and both of them keeps around 35 K. The magnetic ordered moment, on the other hand, increases within increasing x until x=0.5, and then decreases with further increasing x. Detailed refinement of the powder XRD patterns reveals that the Cr substitutions actually stretch the FeAs4 tetrahedron along the c axis and lift the arsenic height away from the Fe-Fe plane. Transport results indicate that the charge carriers become more localized upon Cr doping, then changes from electron type to hole type around x=0.5. Our results suggest that the ordered moment and the ordered temperature of static magnetism in iron pnictides can be decoupled and tuned separately by chemical doping.en_US
dc.identifier.citationGong, Dongliang, Xie, Tao, Zhang, Rui, et al.. "Doping effects of Cr on the physical properties of BaFe1.9−xNi0.1CrxAs2." <i>Physical Review B,</i> 98, no. 1 (2018) American Physical Society: https://doi.org/10.1103/PhysRevB.98.014512.en_US
dc.identifier.digitalPhysRevB.98.014512en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.98.014512en_US
dc.identifier.urihttps://hdl.handle.net/1911/103266en_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.titleDoping effects of Cr on the physical properties of BaFe1.9−xNi0.1CrxAs2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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