Magnetism and clustering in Cu doped ZnO

被引：68

作者：

Huang, Dan ^{[1
,2
]}

Zhao, Yu-Jun ^{[1
]}

Chen, Di-Hu ^{[2
]}

Shao, Yuan-Zhi ^{[2
]}

机构：

[1] S China Univ Technol, Dept Phys, Guangzhou 510640, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 18期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2920572

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of defect charge state on the magnetism of Cu doped ZnO as well as the Cu defects clustering have been investigated by the first-principles calculations. We demonstrate that p-type ZnO:Cu could have ferromagnetic (FM) property, but n-type ZnO:Cu would not have local magnetic moment. Furthermore, the neutral substitutive Cu defects are found to be favorable in clustering, which maintains the FM ordering. (c) 2008 American Institute of Physics.

引用

页数：3

共 27 条

[1] Challenges for semiconductor spintronics
Awschalom, David D.
Flatte, Michael E.
[J]. NATURE PHYSICS, 2007, 3 (03) : 153 - 159
[2] Room-temperature ferromagnetism in Cu-doped ZnO thin films
Buchholz, DB
Chang, RPH
Song, JH
Ketterson, JB
[J]. APPLIED PHYSICS LETTERS, 2005, 87 (08)
[3] Optical properties of Cu implanted ZnO
Cetin, A.
Kibar, R.
Ayvaclkh, M.
Can, N.
Buchal, Ch.
Townsend, P. D.
Stepanov, A. L.
Karah, T.
Selvi, S.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2006, 249 : 474 - 477
[4] Room temperature ferromagnetism in Zn1-xCuxO thin films
Chakraborti, D.
Narayan, J.
Prater, J. T.
[J]. APPLIED PHYSICS LETTERS, 2007, 90 (06)
[5] Zener model description of ferromagnetism in zinc-blende magnetic semiconductors
Dietl, T
Ohno, H
Matsukura, F
Cibert, J
Ferrand, D
[J]. SCIENCE, 2000, 287 (5455) : 1019 - 1022
[6] Appearance of room-temperature ferromagnetism in Cu-doped TiO2-δ films -: art. no. 161313
Duhalde, S
Vignolo, MF
Golmar, F
Chiliotte, C
Torres, CER
Errico, LA
Cabrera, AF
Rentería, M
Sánchez, FH
Weissmann, M
[J]. PHYSICAL REVIEW B, 2005, 72 (16)
[7] Electronic structures and ferromagnetism of Cu- and mn-doped ZnO
Feng, XB
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (24) : 4251 - 4259
[8] Role of copper in the green luminescence from ZnO crystals
Garces, NY
Wang, L
Bai, L
Giles, NC
Halliburton, LE
Cantwell, G
[J]. APPLIED PHYSICS LETTERS, 2002, 81 (04) : 622 - 624
[9] Enhancement of ferromagnetism and stability in Cu-doped ZnO by N2O annealing
Herng, T. S.
Lau, S. P.
Yu, S. F.
Yang, H. Y.
Teng, K. S.
Chen, J. S.
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (35)
[10] Magnetic properties of n-type Cu-doped ZnO thin films
Hou, D. L.
Ye, X. J.
Meng, H. J.
Zhou, H. J.
Li, X. L.
Zhen, C. M.
Tang, G. D.
[J]. APPLIED PHYSICS LETTERS, 2007, 90 (14)

← 1 2 3 →