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dc.contributor.authorMendez-Valderrama, J F
dc.contributor.authorTulipman, Evyatar
dc.contributor.authorZhakina, Elina
dc.contributor.authorMackenzie, Andrew P
dc.contributor.authorBerg, Erez
dc.contributor.authorChowdhury, Debanjan
dc.identifier.citationMendez-Valderrama , J F , Tulipman , E , Zhakina , E , Mackenzie , A P , Berg , E & Chowdhury , D 2023 , ' T -linear resistivity from magneto-elastic scattering : application to PdCrO 2 ' , Proceedings of the National Academy of Sciences of the United States of America , vol. 120 , no. 36 , e2305609120 .
dc.identifier.otherJisc: 1330063
dc.identifier.otherpmc: PMC10483625
dc.descriptionJ.F.M.-V. and D.C. are supported in part by a CAREER grant from the NSF to D.C. (DMR-2237522). D.C. and E.B. acknowledge the support provided by the Aspen Center for Physics where this collaboration was initiated, which is supported by NSF grant PHY-1607611. Research in Dresden benefits from the environment provided by the DFG Cluster of Excellence ct.qmat (EXC 2147, project ID 390858940).en
dc.description.abstractAn electronic solid with itinerant carriers and localized magnetic moments represents a paradigmatic strongly correlated system. The electrical transport properties associated with the itinerant carriers, as they scatter off these local moments, have been scrutinized across a number of materials. Here, we analyze the transport characteristics associated with ultraclean PdCrO2—a quasi-two-dimensional material consisting of alternating layers of itinerant Pd-electrons and Mott-insulating CrO2 layers—which shows a pronounced regime of T-linear resistivity over a wide range of intermediate temperatures. By contrasting these observations to the transport properties in a closely related material PdCoO2, where the CoO2 layers are band-insulators, we can rule out the traditional electron–phonon interactions as being responsible for this interesting regime. We propose a previously ignored electron-magneto-elastic interaction between the Pd-electrons, the Cr local moments and an out-of-plane phonon as the main scattering mechanism that leads to the significant enhancement of resistivity and a T-linear regime in PdCrO2 at temperatures far in excess of the magnetic ordering temperature. We suggest a number of future experiments to confirm this picture in PdCrO2 as well as other layered metallic/Mott-insulating materials.
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of Americaen
dc.subjectKondo materialsen
dc.subjectPlanckian scatteringen
dc.subjectelectrical transporten
dc.titleT-linear resistivity from magneto-elastic scattering : application to PdCrO2en
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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