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Title: Epitaxial growth of (1 1 1)-oriented spinel CoCr{sub 2}O{sub 4}/Al{sub 2}O{sub 3} heterostructures

High quality (1 1 1)-oriented CoCr{sub 2}O{sub 4}/Al{sub 2}O{sub 3} heterostructures were synthesized on the sapphire (0 0 0 1) single crystal substrates by pulsed laser deposition. The structural properties are demonstrated by in-situ reflection high energy electron diffraction, atomic force microscopy, X-ray reflectivity, and X-ray diffraction. X-ray photoemission spectroscopy confirms that the films possess the proper chemical stoichiometry. This work offers a pathway to fabricating spinel type artificial quasi-two-dimensional frustrated lattices by means of geometrical engineering.
Authors:
; ; ; ; ; ;  [1] ; ;  [2]
  1. Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701 (United States)
  2. X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Publication Date:
OSTI Identifier:
22412647
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM OXIDES; ATOMIC FORCE MICROSCOPY; CHROMITES; COBALT COMPOUNDS; CRYSTAL STRUCTURE; ELECTRON DIFFRACTION; ENERGY BEAM DEPOSITION; FILMS; HETEROJUNCTIONS; LASER RADIATION; MONOCRYSTALS; PHOTOELECTRON SPECTROSCOPY; PULSED IRRADIATION; REFLECTIVITY; SAPPHIRE; SPINELS; SUBSTRATES; TWO-DIMENSIONAL SYSTEMS; X-RAY DIFFRACTION