Electronic and magnetic properties of (1 1 1)-oriented CoCr 2O4 epitaxial thin film

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

doi:10.1063/1.4891653

Electronic and magnetic properties of (1 1 1)-oriented CoCr ₂O₄ epitaxial thin film

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

School of Arts and Sciences, Physics & Astronomy

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

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, 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.

Original language	English (US)
Article number	042401
Journal	Applied Physics Letters
Volume	105
Issue number	4
DOIs	https://doi.org/10.1063/1.4891653
State	Published - Jul 28 2014

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4891653

Cite this

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title = "Electronic and magnetic properties of (1 1 1)-oriented CoCr 2O4 epitaxial thin film",

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, 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, Kagom{\'e} and triangular layers are naturally formed via this specific growth approach. These findings offer a pathway to fabricate two dimensional Kagom{\'e} heterostructures with exotic quantum many-body phenomena by means of geometrical design.",

author = "Xiaoran Liu and M. Kareev and Yanwei Cao and Jian Liu and S. Middey and D. Meyers and Freeland, {J. W.} and J. Chakhalian",

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TY - JOUR

T1 - Electronic and magnetic properties of (1 1 1)-oriented CoCr 2O4 epitaxial thin film

AU - Liu, Xiaoran

AU - Kareev, M.

AU - Cao, Yanwei

AU - Liu, Jian

AU - Middey, S.

AU - Meyers, D.

AU - Freeland, J. W.

AU - Chakhalian, J.

PY - 2014/7/28

Y1 - 2014/7/28

N2 - 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, 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.

AB - 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, 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.

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Electronic and magnetic properties of (1 1 1)-oriented CoCr ₂O₄ epitaxial thin film

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