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Anisotropic magnetoresistance in spin-orbit semimetal SrIrO3.

ABSTRACT: SrIrO3 , the three-dimensional member of the Ruddlesden-Popper iridates, is a paramagnetic semimetal characterised by a the delicate interplay between spin-orbit coupling and Coulomb repulsion. In this work, we study the anisotropic magnetoresistance (AMR) of SrIrO3 thin films, which is closely linked to spin-orbit coupling and probes correlations between electronic transport, magnetic order and orbital states. We show that the low-temperature negative magnetoresistance is anisotropic with respect to the magnetic field orientation, and its angular dependence reveals the appearance of a fourfold symmetric component above a critical magnetic field. We show that this AMR component is of magnetocrystalline origin, and attribute the observed transition to a field-induced magnetic state in SrIrO3 .

SUBMITTER: Groenendijk DJ

PROVIDER: S-EPMC7411514 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Anisotropic magnetoresistance in spin-orbit semimetal SrIrO3.

Groenendijk Dirk J DJ Manca Nicola N de Bruijckere Joeri J Monteiro Ana Mafalda R V L AMRVL Gaudenzi Rocco R van der Zant Herre S J HSJ Caviglia Andrea D AD

European physical journal plus 20200805 8

SrIrO3 , the three-dimensional member of the Ruddlesden-Popper iridates, is a paramagnetic semimetal characterised by a the delicate interplay between spin-orbit coupling and Coulomb repulsion. In this work, we study the anisotropic magnetoresistance (AMR) of SrIrO3 thin films, which is closely linked to spin-orbit coupling and probes correlations between electronic transport, magnetic order and orbital states. We show that the low-temperature negative magnetoresistance is anisotropic with respe ...[more]

PMID: 32832318

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