Effect of Zn interstitials on the magnetic and transport properties of bulk Co-doped ZnO
Effect of Zn interstitials on the magnetic and transport properties of bulk Co-doped ZnO
复制标题
Zn填隙对块体Co掺杂ZnO磁性和输运性能的影响
DOI:
10.1088/0022-3727/43/3/035002
复制
发表时间:
2010-01
影响因子:
3.4
通讯作者:
Zhu, Tao
中科院分区:
文献类型:
--
作者:
Shah, Lubna R.;Wang, W. G.;Xiao, John Q.;Zhu, Hao;Wen, Q. Y.;Zhang, H. W.;Song, Y. Q.;Ali, Bakhtyar;Shah, S. Ismat;Fan, Xin;Zhu, Tao
We have demonstrated that the bound magnetic polaron model is responsible for ferromagnetism in Co–ZnO semiconductors, where the carriers are provided by the interstitial zinc (Zni). Our experiment is unique since by changing the temperature, we are able to cross the carrier concentration threshold above which a long-range ferromagnetic order is established. Consequently, the ferromagnetic order is observed at room temperature but is weakened at temperatures below 100 K. To support our conclusion we have performed a systematic investigation on the structural, magnetic and transport properties which all give consistent results in the context of our proposed two-region model, i.e. (a) a Zni layer where carriers are sufficient to couple Co ions ferromagnetically and (b) a region with little carriers that remain in a paramagnetic state.
登录
查看更多内容
影响因子:
3.7
作者:
T. Dietl;T. Andrearczyk;A. Lipi'nska;M. Kiecana;M. Tay;M. Tay;Yihong Wu
通讯作者:
T. Dietl;T. Andrearczyk;A. Lipi'nska;M. Kiecana;M. Tay;M. Tay;Yihong Wu
影响因子:
3.2
作者:
Weigang Wanga;Tao Zhu
通讯作者:
Weigang Wanga;Tao Zhu
影响因子:
3.2
作者:
L. Shah;Weigang Wang;Haojun Zhu;B. Ali;Yuanqiang Song;Huaiwu Zhang;S. Shah;J. Xiao
通讯作者:
L. Shah;Weigang Wang;Haojun Zhu;B. Ali;Yuanqiang Song;Huaiwu Zhang;S. Shah;J. Xiao
影响因子:
3.2
作者:
K. Rode;A. Anane;R. Mattana;J. Contour;O. Durand;R. Lebourgeois
通讯作者:
K. Rode;A. Anane;R. Mattana;J. Contour;O. Durand;R. Lebourgeois
影响因子:
4
作者:
T. Shi;San-yuan Zhu;Zhihu Sun;Shiqiang Wei;Wenhan Liu
通讯作者:
T. Shi;San-yuan Zhu;Zhihu Sun;Shiqiang Wei;Wenhan Liu