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Magnetotransport of SrIrO₃ films on (110) DyScO₃

Jaiswal, A. K. 1; Zaitsev, A. G. 1; Singh, R.; Schneider, R. 1; Fuchs, D. 1
1 Institut für Festkörperphysik (IFP), Karlsruher Institut für Technologie (KIT)


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

Verlagsausgabe §
DOI: 10.5445/IR/1000104608
Veröffentlicht am 07.01.2020
DOI: 10.1063/1.5129350
Zitationen: 5
Web of Science
Zitationen: 5
Zitationen: 5
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 Scopus
Web of Science
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