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Magnetotransport of SrIrO₃ films on (110) DyScO₃

Jaiswal, A. K.; Zaitsev, A. G.; Singh, R.; Schneider, R.; Fuchs, D.

Abstract:
Epitaxial perovskite (110) oriented SrIrO3(SIO) thin films were grown by pulsed laser deposition on (110) oriented DyScO3(DSO) substrateswith various film thicknesst(2 nm<t<50 nm). All the films were produced with stoichiometric composition, orthorhombic phase, and withhigh crystallinity. The nearly perfect in-plane lattice matching of DSO with respect to SIO and same symmetry result in a full epitaxial in-planealignment, i.e., thec-axis of DSO and SIO are parallel to each other with only slightly enlargedd110out-of-plane lattice spacing (+0.38%) due tothe small in-plane compressive strain caused by the DSO substrate. Measurements of the magnetoresistanceMRwere carried out for currentflow along the [001] and [1-10] direction of SIO and magnetic field perpendicular to the film plane.MRappears to be distinctly differentfor both directions. The anisotropyMR001/MR1-10>1 increases with decreasingTand is especially pronounced for the thinnest films, whichlikewise display a hysteretic field dependence belowT∗≈3 K. The coercive fieldHcamounts to 2-5 T. Both,T∗andHcare very similar to themagnetic ordering temperature and coercivity of DSO which strongly suggests substrate-induced mechanism as a reason for the anisotropicmagnetotransport in the SIO films

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Verlagsausgabe §
DOI: 10.5445/IR/1000104608
Veröffentlicht am 07.01.2020
Originalveröffentlichung
DOI: 10.1063/1.5129350
Scopus
Zitationen: 1
Web of Science
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Festkörperphysik (IFP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2019
Sprache Englisch
Identifikator ISSN: 2158-3226
KITopen-ID: 1000104608
HGF-Programm 43.21.01 (POF III, LK 01) Quantum Correlations in Condensed Matter
Erschienen in AIP Advances
Verlag American Institute of Physics (AIP)
Band 9
Heft 12
Seiten Article no: 125034
Nachgewiesen in Dimensions
Web of Science
Scopus
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