Generation and detection of spin current in iridate/manganite heterostructures

The present study focuses on experimental investigations of spin current across the interface of an iridate/manganite heterostructure (SrIrO3/La0.7Sr0.3MnO3) consisting of oxide epitaxial films with nanometer thickness. Pure spin current is induced by microwave irradiation in the GHz frequency band,...

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Bibliographic Details
Published inarXiv.org
Main Authors Ulev, Georgii D, Ovsyannikov, Gennady A, Constantinian, Karen Y, Shadrin, Anton V, Moskal, Ivan E, Lega, Peter V
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 16.10.2023
Subjects
Ferromagnetic resonance
Ferromagnetism
Frequencies
Hall effect
Heterostructures
Magnetoresistance
Magnetoresistivity
Manganites
Spin-orbit interactions
Spintronics
Thickness
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Summary:The present study focuses on experimental investigations of spin current across the interface of an iridate/manganite heterostructure (SrIrO3/La0.7Sr0.3MnO3) consisting of oxide epitaxial films with nanometer thickness. Pure spin current is induced by microwave irradiation in the GHz frequency band, specifically under conditions of ferromagnetic resonance. The detection of spin current is achieved through the inverse spin-Hall effect, which measures the charge current arising on the electrically conductive SrIrO3 film with strong spin-orbit interaction. To quantify the efficiency of spin current conversion to charge current, the angular dependences of spin magnetoresistance of the iridate/manganite interface are measured, thereby determining the spin- Hall angle.
ISSN:2331-8422