Open AccessOptical properties of GaMnN films grown by metal-organic chemical vapor deposition
Author(s) -
Haiying Xing,
Guanghan Fan,
Yang Xue-Lin,
Guoyi Zhang
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.504
Subject(s) - materials science , absorption (acoustics) , attenuation coefficient , chemical vapor deposition , analytical chemistry (journal) , metal , absorption spectroscopy , deposition (geology) , transition metal , extended x ray absorption fine structure , optics , nanotechnology , chemistry , organic chemistry , physics , metallurgy , composite material , paleontology , sediment , biology , catalysis
Optical absorption spectra for a series of GaMnN samples with different Mn content grown by metal-organic chemical vapor deposition have been investigated. Compared with GaN, the absorption coefficient of Ga1-xMnxN increases in the UV region and an absorption peak can be observed near 144 eV. In addition, the absorption coefficient increases with the increase of the Mn content. The experimental results are in excellent agreement with theoretical data based on density functional theory. Associated with theoretical data, the absorption peak near 144 eV is assigned to 5T2→5E internal transition between the e state and the t2 state of Mn3+ ion.