MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Magnetic Domain Structure of MnAs Thin Films as a Function of Temperature
Masaki MizuguchiHiromi KuramochiJun OkabayashiTakashi ManagoHiroyuki Akinaga
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2003 Volume 44 Issue 12 Pages 2578-2581

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Abstract

We have investigated magnetic domain structures of MnAs thin films grown on GaAs substrates by a magnetic force microscope. We observed, by an atomic force microscope, rectangular defects along GaAs [110] direction which disperse randomly on the surface of MnAs/GaAs (001). The Curie temperature of MnAs is 45°C, and it is successfully confirmed directly by the variable temperature magnetic force microscope observation. We also investigated magnetic domain structures of MnAs/GaAs (111)B, and no apparent relation was observed between the topographic structure and the magnetic domain structure.

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© 2003 The Japan Institute of Metals and Materials
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