Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/9107
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dc.contributor.authorROUT, DIBYATAen_US
dc.contributor.authorMUDI, SANCHAYETA RANAJITen_US
dc.contributor.authorKarmakar, Sumanen_US
dc.contributor.authorRawat, Rajeeven_US
dc.contributor.authorSINGH, SURJEETen_US
dc.date.accessioned2024-09-30T08:55:02Z-
dc.date.available2024-09-30T08:55:02Z-
dc.date.issued2024-09en_US
dc.identifier.citationPhysical Review B, 110(09), 094412.en_US
dc.identifier.issn2469-9969en_US
dc.identifier.issn2469-9950en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevB.110.094412en_US
dc.identifier.urihttp://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/9107-
dc.description.abstractThe infinite layered (𝑇′) nickelates have recently garnered significant attention due to the discovery of superconductivity in hole-doped π‘…⁒NiO2 (𝑅=La,Pr,orNd), which is the π‘›=∞ member of the series π‘…𝑛+1⁒Ni𝑛⁒O2⁒𝑛+2. Here, we investigate the π‘›=3 member, namely π‘…4⁒Ni3⁒O8 (𝑅=La,Pr,orNd), of this family. The compound La4⁒Ni3⁒O8 exhibits simultaneous charge/spin-stripe ordering at π‘‡*𝑁 = 105 K, which occurs concomitantly with the onset of the metal-to-insulator (MIT) transition below π‘‡*𝑁. We investigate the conspicuous absence of this transition in the Pr and Nd analogs of La4⁒Ni3⁒O8. For this purpose, we synthesized solid solutions of the form (La,Pr)4⁒Ni3⁒O8 and (La,Nd)4⁒Ni3⁒O8, and examined the behavior of π‘‡*𝑁 as a function of the average π‘…-site ionic radius (π‘Ÿβ€Ύπ‘…). We show that after an initial quasilinear decrease with decreasing π‘Ÿβ€Ύπ‘…, π‘‡*𝑁 suddenly vanishes in the narrow range 1.134β‰€π‘Ÿβ€Ύπ‘…β‰€1.143Γ…. In the same range, we observed the emergence of a weak anomaly in the specific heat, whose onset temperature (𝑇*) increases as π‘Ÿβ€Ύπ‘… further decreases reaching a maximum of 13 K for Nd4⁒Ni3⁒O8. We suggest, therefore, that the sudden vanishing of charge/spin-stripe/MIT ordering upon decreasing π‘Ÿβ€Ύπ‘… is related to the appearance of this new electronic phase for π‘Ÿβ€Ύπ‘…<π‘Ÿπ‘. The nature of this phase or the weak anomaly and the point π‘Ÿβ€Ύπ‘…β‰ˆπ‘Ÿπ‘, where π‘‡*𝑁 vanishes and π‘‡* appears, should be investigated further. In this regard, Pr4⁑Ni3⁒O8 and Pr-rich samples should be useful due to the weak magnetization response associated with the Pr sublattice, as shown here.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.subjectMagnetismen_US
dc.subject2024en_US
dc.subject2024-SEP-WEEK3en_US
dc.subjectTOC-SEP-2024en_US
dc.titleInvestigating the cause of crossover from charge/spin-stripe insulator to correlated metallic phase in layered π‘‡β€² nickelates π‘…4⁒Ni3⁒O8 (𝑅=La,Pr,orNd)en_US
dc.typeArticleen_US
dc.contributor.departmentDept. of Physicsen_US
dc.identifier.sourcetitlePhysical Review Ben_US
dc.publication.originofpublisherForeignen_US
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