Raman spectra and room-temperature ferromagnetism of hydrogenated Zn0.95Mn0.05O nanopowders

被引：8
作者：
Wang, Zhenhua [1 ]
Geng, Dianyu
Hu, Weijin
Zhang, Zhidong
机构：
[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 12期
关键词：
MN-DOPED ZNO; MAGNETIC SEMICONDUCTORS; THIN-FILMS; SCATTERING; BULK;
D O I：
10.1063/1.3147867
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Two additional vibration modes at 250 and 529 cm(-1) were observed in hydrogenated Zn0.98Mn0.05O nanopowders. The number of oxygen vacancies was increased by hydrogenation, which induced the mode at 250 cm(-1). The additional vibration mode at 529 cm(-1) was due to the increase of the number of subsititutional Mn atoms occupying Zn sites, which resulted that some new lattice defects were introduced or intrinsic host-lattice defects became activated/intensified. The room-temperature ferromagnetism was observed in the hydrogenated Zn0.98Mn0.05O nanopowders prepared at high temperature (T=700 degrees C), which originated from the lattice defects such as oxygen vacancies and Zn interstitials. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3147867]
引用
收藏
页数：4
相关论文
共 26 条
[11]   Magnetism in Mn-doped ZnO bulk samples prepared by solid state reaction [J].
Han, SJ ;
Jang, TH ;
Kim, YB ;
Park, BG ;
Park, JH ;
Jeong, YH .
APPLIED PHYSICS LETTERS, 2003, 83 (05) :920-922
[12]   Activation of high-Tc ferromagnetism in Mn2+-doped ZnO using amines [J].
Kittilstved, KR ;
Gamelin, DR .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (15) :5292-5293
[13]   Hydrogen-induced ferromagnetism in ZnCoO [J].
Lee, HJ ;
Park, CH ;
Jeong, SY ;
Yee, KJ ;
Cho, CR ;
Jung, MH ;
Chadi, DJ .
APPLIED PHYSICS LETTERS, 2006, 88 (06)
[14]   Crystallographically oriented Zn nanocrystals formed in ZnO by Mn+-implantation [J].
Li, Y. J. ;
Zhang, B. ;
Lu, W. ;
Wang, Y. ;
Zou, J. .
APPLIED PHYSICS LETTERS, 2008, 93 (13)
[15]   Effects of annealing and hydrogenation on the properties of ZnMnO polycrystalline films synthesized by plasma enhanced chemical vapour deposition [J].
Lin, Y. B. ;
Xu, J. P. ;
Zou, W. Q. ;
Lv, L. Y. ;
Lu, Z. H. ;
Zhang, F. M. ;
Du, Y. W. ;
Huang, Z. G. ;
Zheng, J. G. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (12) :3674-3677
[16]   Influence of antiferromagnetic exchange interaction on magnetic properties of ZnMnO thin films grown pseudomorphically on ZnO (000(1)over-bar) single-crystal substrates [J].
Masuko, K. ;
Ashida, A. ;
Yoshimura, T. ;
Fujimura, N. .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (04)
[17]   Hydrogenation effects on magnetic properties of GaMnP [J].
Overberg, ME ;
Baik, KH ;
Thaler, GT ;
Abernathy, CR ;
Pearton, SJ ;
Kelly, J ;
Rairigh, R ;
Hebard, AF ;
Tang, W ;
Stavola, M ;
Zavada, JM .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (11) :G131-G133
[18]   A comprehensive review of ZnO materials and devices -: art. no. 041301 [J].
Ozgür, U ;
Alivov, YI ;
Liu, C ;
Teke, A ;
Reshchikov, MA ;
Dogan, S ;
Avrutin, V ;
Cho, SJ ;
Morkoç, H .
JOURNAL OF APPLIED PHYSICS, 2005, 98 (04) :1-103
[19]   High-temperature ferromagnetism in Mn-doped ZnO nanowires [J].
Philipose, U. ;
Nair, Selvakumar V. ;
Trudel, Simon ;
de Souza, C. F. ;
Aouba, S. ;
Hill, Ross H. ;
Ruda, Harry E. .
APPLIED PHYSICS LETTERS, 2006, 88 (26)
[20]   Structural and optical properties of nanocrystalline Zn1-xMnxO [J].
Samanta, K. ;
Dussan, S. ;
Katiyar, R. S. ;
Bhattacharya, P. .
APPLIED PHYSICS LETTERS, 2007, 90 (26)
123