Electron paramagnetic resonance of Cu(d(9)) in GaN

Authors
Bozdog, C Chow, KH Watkins, GD Sunakawa, H Kuroda, N Usui, A
Citation
C. Bozdog et al., Electron paramagnetic resonance of Cu(d(9)) in GaN, PHYS REV B, 62(19), 2000, pp. 12923-12926
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
19
Year of publication
2000
Pages
12923 - 12926
Database
ISI
SICI code
0163-1829(20001115)62:19<12923:EPROCI>2.0.ZU;2-1
Abstract
Electron paramagnetic resonance of Cu2+(d(9)) has been detected optically i n the visible and near-infrared luminescence of wurtzite GaN. Its effective S = 1/2 spin Hamiltonian parameters are g(\\) = +/-0.20(5), g(perpendicula r to) = + 1.549(1), and \(63)A(\\)\ = 550(50) MHz, and \(63)A(perpendicular to)\ = 570(5) MHz. A crystal field theory of the g values is presented, wh ich identifies the ion as substitutional on the Ga sublattice. Possible mec hanisms for its presence in the luminescence are discussed.