| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
|
|
|
|
First-Principles Study on Magnetic Properties of V-Doped ZnO Nanotubes |
| ZHANG Fu-Chun1,2,3, ZHANG Zhi-Yong4, ZHANG Wei-Hu1,2,3, YAN Jun-Feng4, YUN Jiang-Ni4 |
| 1Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 7100682Graduate University of Chinese Academy of Sciences, Beijing 1000393College of Physics and Electronic Information, Yan'an University, Yan'an 7160004Information Science and Technology Institution, Northwest University, Xi'an 710127 |
|
| Cite this article: |
|
ZHANG Fu-Chun, ZHANG Zhi-Yong, ZHANG Wei-Hu et al 2009 Chin. Phys. Lett. 26 016105 |
|
|
|
|
Abstract Electronic and magnetic properties of V-doped ZnO nanotubes in which one of Zn2+ ions is substituted by V2+ ions are studied by the first-principles calculations of plane wave ultra-soft pseudo-potential technology based on the spin-density function theory. The computational results reveal that spontaneous magnetization in V-doped (9,0) ZnO nanotubes can be induced without p-type or n-type doping treatment, and the ferromagnetism is isotropic and independent of the chirality and diameter of the nanotubes. It is found that V-doped ZnO nanotubes have large magnetic moments and are ferromagnetic half-metal materials. Moreover, the ferromagnetic coupling among V atoms is generated by O 2p electron spins and V 3d electron spins localized at the exchanging interactions between magnetic transitional metal (TM) impurities. The appearance of ferromagnetism in V-doped ZnO nanotubes gives some reference to fabrication of a transparent ferromagnet which may have a great impact on industrial applications in magneto-optical devices.
|
| Keywords:
61.46.Fg
62.20.Dc
|
|
|
Received: 09 October 2008
Published: 24 December 2008
|
|
|
|
|
|
|
|
[1]Dietl T, Ohno H, Matsukura F, Cubert J and Ferrand D 2000 Science 287 1019
[2] Ueda K, Tabata H and Kawai K 2001 Appl. Phys. Lett. 79 988
[3] Cho Y M, Choo W K, Kim H, Kim D and Ihm Y E 2002 Appl. Phys. Lett. 80 3358
[4] Jung S W, An S J, Yi G C, Jung C U, Lee S I and Cho S 2002 Appl. Phys. Lett. 80 4561
[5] Neal J R, Behan A J, Ibrahim R M, Blythe H J, Ziese M, FoxA M and Gehring G A 2006 Phys. Rev. Lett. 96 197208
[6] Yuan P F, Ding Z J and Ju X 2008 Chin. Phys. Lett. 25 1030
[7] Ishida Y, Hwang J I, Kobayashi M, Fujimori A, Saeki H,Tabata H and Kawai T 2004 Physica B 351 304
[8] Hong N, Sakai J and Hassini A 2005 J. Appl. Phys. 97 103312
[9] Hong N, Sakai J and Hassini A 2005 J. Phys.: Condens.Matter 17 199
[10] Venkatesan M, Fitzgerald C B, Lunney J G and Coey J M D2004 Phys. Rev. Lett. 93 177206
[11] Saeki H, Matsui H, Kawai T and Tabata H 2004 J.Phys.: Condens. Matter 16 S5533
[12] Ramachandran S, Tiwari A, Narayan J and Prater J T 2005 Appl. Phys. Lett. 87 172502
[13] Ishida Y, Hwang J I, Kobayashi M, Takeda Y, Mamiya K,Okamoto J, Fujimori S I, Okane T, Terai T K, Saitoh Y, Muramatsu Y,Fujimori A, Tanaka A, Saeki H, Kawai T and Tabata H 2007 Appl.Phys. Lett. 90 022510
[14] Banerjee D, Jo S H and Ren Z F 2004 Adv. Mater. 16 2028
[15] Lao J Y, Huang J Y, Wang D Z and Ren Z F 2004 J.Mater. Chem. 14 770
[16] Bae S Y, Seo H W, Choi H C and Park J 2004 J. Phys.Chem. B 108 12318
[17] Xing Y J, Xi Z H, Xue Z Q, Zhang X D, Song J H, Wang R M,Xu J, Song Y, Zhang S L and Yu D P 2003 Appl. Phys. Lett. 83 1689
[18] Xu C X and Sun X W 2003 Appl. Phys. Lett. 833806
[19] Jo S H, Banerjee D and Ren Z F 2004 Appl. Phys.Lett. 85 1407
[20] Ji D, Gao X, Kong X Y and Li J M 2007 Chin. Phys.Lett. 24 165
[21] Chen Y L, Liu B, Yin Y J, Huang Y G and Huang K C 2006 Chin. Phys. Lett. 23 2167
[22] Yang Y R, Yan X H, Xiao Y and Guo Z H 2007 Chem.Phys. Lett. 446 98
[23] Akai H 1998 Phys. Rev. Lett. 81 3002 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
