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Preparation and Magnetism of CuO/A12O3 and CuO/MgO Artificial Superstructured Films

Published online by Cambridge University Press:  26 February 2011

Mitsugu Sohma  and
Kenji Kawaguchi
Mitsugu Sohma
Affiliation:
National Chemical Laboratory for Industry, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
Kenji Kawaguchi
Affiliation:
National Chemical Laboratory for Industry, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
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Abstract

Three kinds of copper oxide (CuO) films, that is, CuO mono-layer films (MLFs), CuO/A12O3 artificial superstructured films (ASFs) and CuO/MgO ASFs were prepared by a reactive vapor deposition method. Magnetic susceptibility of the MLFs is almost constant against temperature and the Neel temperature (TN) is a little lower than that of bulk CuO. There is paramagnetic contribution proportional to the number of the interfaces for both kinds of ASFs. It is considered to be caused by imperfect -Cu-O-Cu- antiferromagnetic superexchange interactions located in the vicinity of interfaces.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 231: Symposium S – Magnetic Surfaces, Thin Films and Multilayers , 1991 , 427
Copyright
Copyright © Materials Research Society 1992

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