Nematic Fluctuations in the Non-Superconducting Iron Pnictide BaFe1.9−xNi0.1CrxAs2

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dc.citation.articleNumber886459
dc.citation.journalTitleFrontiers in Physics
dc.citation.volumeNumber10
dc.contributor.authorGong, Dongliang
dc.contributor.authorYi, Ming
dc.contributor.authorWang, Meng
dc.contributor.authorXie, Tao
dc.contributor.authorZhang, Wenliang
dc.contributor.authorDanilkin, Sergey
dc.contributor.authorDeng, Guochu
dc.contributor.authorLiu, Xinzhi
dc.contributor.authorPark, Jitae T.
dc.contributor.authorIkeuchi, Kazuhiko
dc.contributor.authorKamazawa, Kazuya
dc.contributor.authorMo, Sung-Kwan
dc.contributor.authorHashimoto, Makoto
dc.contributor.authorLu, Donghui
dc.contributor.authorZhang, Rui
dc.contributor.authorDai, Pengcheng
dc.contributor.authorBirgeneau, Robert J.
dc.contributor.authorLi, Shiliang
dc.contributor.authorLuo, Huiqian
dc.contributor.orgRice Center for Quantum Materials
dc.date.accessioned2022-08-04T14:53:22Z
dc.date.available2022-08-04T14:53:22Z
dc.date.issued2022
dc.description.abstractThe main driven force of the electronic nematic phase in iron-based superconductors is still under debate. Here, we report a comprehensive study on the nematic fluctuations in a non-superconducting iron pnictide system BaFe1.9−xNi0.1CrxAs2 by electronic transport, angle-resolved photoemission spectroscopy (ARPES), and inelastic neutron scattering (INS) measurements. Previous neutron diffraction and transport measurements suggested that the collinear antiferromagnetism persists to x = 0.8, with similar Néel temperature TN and structural transition temperature Ts around 32 K, but the charge carriers change from electron type to hole type around x = 0.5. In this study, we have found that the in-plane resistivity anisotropy also highly depends on the Cr dopings and the type of charge carriers. While ARPES measurements suggest possibly weak orbital anisotropy onset near Ts for both x = 0.05 and x = 0.5 compounds, INS experiments reveal clearly different onset temperatures of low-energy spin excitation anisotropy, which is likely related to the energy scale of spin nematicity. These results suggest that the interplay between the local spins on Fe atoms and the itinerant electrons on Fermi surfaces is crucial to the nematic fluctuations of iron pnictides, where the orbital degree of freedom may behave differently from the spin degree of freedom, and the transport properties are intimately related to the spin dynamics.
dc.identifier.citationGong, Dongliang, Yi, Ming, Wang, Meng, et al.. "Nematic Fluctuations in the Non-Superconducting Iron Pnictide BaFe1.9−xNi0.1CrxAs2." <i>Frontiers in Physics,</i> 10, (2022) Frontiers Media S.A.: https://doi.org/10.3389/fphy.2022.886459.
dc.identifier.digitalfphy-10-886459
dc.identifier.doihttps://doi.org/10.3389/fphy.2022.886459
dc.identifier.urihttps://hdl.handle.net/1911/112971
dc.language.isoeng
dc.publisherFrontiers Media S.A.
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleNematic Fluctuations in the Non-Superconducting Iron Pnictide BaFe1.9−xNi0.1CrxAs2
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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