Scanning SQUID characterization of strained multiferroic iron substituted gadolinium orthochromite thin film
Source abstract
Abstract
Canted antiferromagnets GdCrO3 and GdFeO3 have drawn extensive attention due to large magnetoelectric effects, although low temperature multiferroic ordering currently limits possible applications. Iron substitution into GdCrO3 increases both antiferromagnetic and ferroelectric transition temperatures. Room temperature magnetoelectric coupling in a single-phase material has yet to be realized. Here, we report the synthesis of a strained GdFe0.5Cr0.5O3 thin film grown on SrTiO3 and investigation of magnetic domain structure and temperature dependence with scanning superconducting quantum interference device (SQUID) microscopy. Magnetic domain structure remains above 70 K although magnetization of the domain dramatically decreases, which is consistent with bulk hysteresis measurements, in contrast to unstrained samples previously studied. Our results suggest strain tuning Dzyaloshinskii-Moriya interactions in GdFe0.5Cr0.5O3 offers a route to control multiferroic properties in this family of materials.
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Research context
OpenAlex topics: Multiferroics and related materials · Magnetic Properties and Synthesis of Ferrites · Magnetic Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, University of Connecticut 1 , Storrs, Connecticut 06269,
Institute of Material Science, University of Connecticut 2 , Storrs, Connecticut 06269,
Department of Material Science and Engineering, University of Connecticut 3 , Storrs, Connecticut 06269,
Funding
Air Force Research Laboratory · National Science Foundation · University of Connecticut Quantum SEED Grant · University of Connecticut Quantum Regional Development Grant
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