Local Structure around Mn in Ferromagnetic GaMnN Film Studied by X-Ray Absorption Fine Structure

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Copyright (c) 2002 The Japan Society of Applied Physics
, , Citation Masugu Sato et al 2002 Jpn. J. Appl. Phys. 41 4513 DOI 10.1143/JJAP.41.4513

1347-4065/41/7R/4513

Abstract

The local structure of the Mn in a GaMnN film was investigated using extended X-ray absorption fine structure (EXAFS) analysis. This GaMnN film shows ferromagnetism with an extremely high Curie temperature above 740 K. We carried out EXAFS measurement of the K-edge of the Mn and Ga in this sample using a fluorescence-yield mode. The local structure of the atoms around the Mn is in good agreement with that around Ga, indicating that the Mn atoms substitute for Ga in GaN.

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10.1143/JJAP.41.4513