Local-Orbital Ordering on Cr{sup 3+} Ions Doped in GaN

Journal Article · Mon Jan 04 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3295481· OSTI ID:21371415

Emura, S; Kimura, S; Tokuda, K; Zhou, Yi-Kai; Hasegawa, S; Asahi, H ^[1]

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1. The Institute of Scientific and Industrial research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047 (Japan)

The X-ray linear dichroism (XLD) at the pre-peaks of Cr K-edge, which corresponds to the transition from 1s to 3d orbital, is explicitly observed for cubic GaCrN and hexagonal GaCrN. This observation of XLD in the cubic structure of GaCrN indicates that CrN{sub 4} tetrahedron in the local coordination suffers inhomogeneous or anisotropic deformation. This deformation is also confirmed through the analysis of the X-ray absorption fine structure of Cr K-edge of the hexagonal GaCrN, indicating the shift of Cr{sup +3} ion along the <111> direction.

• OSTI ID: 21371415
• Journal Information: AIP Conference Proceedings, Vol. 1199, Issue 1; Conference: 29. international conference on the physics of semiconductors, Rio de Janeiro (Brazil), 27 Jul - 1 Aug 2008; Other Information: DOI: 10.1063/1.3295481; (c) 2009 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANISOTROPY
CHROMIUM IONS
CHROMIUM NITRIDES
CUBIC LATTICES
DICHROISM
DOPED MATERIALS
FINE STRUCTURE
GALLIUM NITRIDES
HEXAGONAL LATTICES
MAGNETIC SEMICONDUCTORS
MOLECULAR BEAM EPITAXY
X-RAY SPECTRA
CHARGED PARTICLES
CHROMIUM COMPOUNDS
CRYSTAL GROWTH METHODS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
EPITAXY
GALLIUM COMPOUNDS
IONS
MATERIALS
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
SEMICONDUCTOR MATERIALS
SPECTRA
TRANSITION ELEMENT COMPOUNDS