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arXiv · 1406.0523

Electronic and magnetic properties of (1 1 1)-oriented CoCr2O4 epitaxial thin film

Xiaoran Liu·M. Kareev·Yanwei Cao·Jian Liu·S. Middey·D. Meyers·J. W. Freeland·J. Chakhalian
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Abstract

We report on the fabrication of high quality (1 1 1)-oriented ferrimagnetic normal spinel CoCr2O4 epitaxial thin films on single crystal Al2O3 substrates. The structural, electronic and magnetic properties were characterized by in-situ reflection high energy electron diffraction, atomic force microscopy, X-ray diffraction, X-ray photoemission spectroscopy, SQUID magnetometry and element resolved resonant X-ray magnetic scattering. The comprehensive characterization reveals that no disorder in the cation distribution or multivalency issue is present in the samples. As a result, Kagome and triangular layers are naturally formed via this specific growth approach. These findings offer a pathway to fabricate two dimensional Kagome heterostructures with novel quantum many-body phenomena by means of geometrical design.

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Xiaoran Liu, M. Kareev, Yanwei Cao, Jian Liu, S. Middey, D. Meyers, J. W. Freeland, J. Chakhalian. 2014-06-02. Electronic and magnetic properties of (1 1 1)-oriented CoCr2O4 epitaxial thin film. https://doi.org/10.1063/1.4891653

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