Site preference of cation vacancies in Mn-doped Ga2O3 with defective spinel structure
Site preference of cation vacancies in Mn-doped Ga2O3 with defective spinel structure
复制标题
尖晶石结构缺陷掺锰 Ga2O3 中阳离子空位的位点偏好
DOI:
10.1063/1.4770363
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发表时间:
2012-12
影响因子:
4
通讯作者:
Tanaka, Isao1, 2
中科院分区:
文献类型:
--
作者:
Hayashi, Hiroyuki1;Huang, Rong2, 3;Oba, Fumiyasu1;Hirayama, Tsukasa2;Tanaka, Isao1, 2
A strong site preference of intrinsic cation vacancies in Mn-doped Ga2O3 with a defective spinel structure is revealed using a combination of high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and first-principles calculations. The intensity profile analysis of HAADF-STEM images clearly indicates that the cation vacancies prefer the octahedral sites. Systematic first-principles calculations for 698 atomic configurations suggest that the Mn ions and cation vacancies are energetically favorable at the tetrahedral and octahedral sites, respectively. The site preference of the cation vacancies is found to correlate with the electrostatic energy.
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影响因子:
3.7
作者:
M. Posternak;A. Baldereschi;S. Massidda;N. Marzari
通讯作者:
M. Posternak;A. Baldereschi;S. Massidda;N. Marzari
影响因子:
4
作者:
Kokubun, Yoshihiro;Miura, Kasumi;Nakagomi, Shinji
通讯作者:
Nakagomi, Shinji
影响因子:
3.2
作者:
Rong Huang;Hiroyuki Hayashi;F. Oba;I. Tanaka
通讯作者:
Rong Huang;Hiroyuki Hayashi;F. Oba;I. Tanaka
影响因子:
2.7
作者:
Yoshioka, S.;Hayashi, H.;Tanaka, I.
通讯作者:
Tanaka, I.
影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J