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Title: Electronic and magnetic properties of (1 1 1)-oriented CoCr{sub 2}O{sub 4} epitaxial thin film

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4891653· OSTI ID:22311202
; ; ; ; ;  [1];  [2];  [3]
  1. Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701 (United States)
  2. Department of Physics, University of California, Berkeley, California 94720 (United States)
  3. Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

We report on the fabrication of high quality (1 1 1)-oriented ferrimagnetic normal spinel CoCr{sub 2}O{sub 4} epitaxial thin films on single crystal Al{sub 2}O{sub 3} 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, dc magnetization measurement, 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, Kagomé and triangular layers are naturally formed via this specific growth approach. These findings offer a pathway to fabricate two dimensional Kagomé heterostructures with exotic quantum many-body phenomena by means of geometrical design.

OSTI ID:
22311202
Journal Information:
Applied Physics Letters, Vol. 105, Issue 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English