Publication Date:
2014-07-29
Description:
We report on the fabrication of high quality (1 1 1)-oriented ferrimagnetic normal spinel CoCr 2 O 4 epitaxial thin films on single crystal Al 2 O 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.
Print ISSN:
0003-6951
Electronic ISSN:
1077-3118
Topics:
Physics