Ferromagnetism and microstructure in Fe+-implanted ZnO
Ferromagnetism and microstructure in Fe+-implanted ZnO
复制标题
Fe注入ZnO中的铁磁性和微观结构
DOI：
10.1016/j.apsusc.2009.07.038
复制
发表时间：
2009-09
影响因子：
6.7
通讯作者：
陈志权
中科院分区：
文献类型：
--
作者：
陈志权
Fe ions were implanted into ZnO single crystals with multiple energies between 50 and 380keV up to a total fluence of 12.5×1017cm−2. The crystal quality of Fe+implanted ZnO was investigated by X-ray diffraction 2θ scans and ω-rocking curve measurements. The appearance of Fe related diffraction peaks after 700° C annealing of the implanted sample indicates possibly formation of Fe nanoparticles. Superconducting quantum interference device measurements revealed ferromagnetic behavior below 250K for both the as-implanted and post-annealed ZnO. Photoluminescence and Raman scattering as well as X-ray rocking curve measurements all indicate introduction of structural defects after Fe implantation. Some of the defects act as nonradiative recombination centers, and suppress the visible and ultraviolet (UV) emission in ZnO. These defects also break the Raman selection rule, and lead to the activation of some silent phonon modes. Annealing of the implanted sample at 700° C causes partial recovery of the defects, however, the X-ray diffraction results of the anneal ZnO show even an improvement of the crystal quality compared with the un-implanted one. This could be attributed to the recovery of the grown-in defects in ZnO.
登录
查看更多内容
影响因子：
4
作者：
Zhao, QX;Klason, P;Yang, JH
通讯作者：
Yang, JH
影响因子：
3.2
作者：
Dinia, A;Schmerber, G;Beaurepaire, E
通讯作者：
Beaurepaire, E
影响因子：
3.7
作者：
Z. Q. Chen;Shao-jie Wang;M. Maekawa;A. Kawasuso;H. Naramoto;Xiao-li Yuan;T. Sekiguchi
通讯作者：
Z. Q. Chen;Shao-jie Wang;M. Maekawa;A. Kawasuso;H. Naramoto;Xiao-li Yuan;T. Sekiguchi
影响因子：
4
作者：
P. Wu;G. Saraf;Yicheng Lu;D. H. Hill;R. Gateau;L. Wielunski;R. Bartynski;D. Arena;J. Dvorak;A. Moodenbaugh;T. Siegrist;J. A. Raley;Y. Yeo
通讯作者：
P. Wu;G. Saraf;Yicheng Lu;D. H. Hill;R. Gateau;L. Wielunski;R. Bartynski;D. Arena;J. Dvorak;A. Moodenbaugh;T. Siegrist;J. A. Raley;Y. Yeo
影响因子：
3.2
作者：
K. Potzger;K. Kuepper;Qingyu Xu;Shengqiang Zhou;H. Schmidt;M. Helm;J. Fassbender
通讯作者：
K. Potzger;K. Kuepper;Qingyu Xu;Shengqiang Zhou;H. Schmidt;M. Helm;J. Fassbender