The structural,magnetic,and optical properties of ZnO (0001) wafers implanted with Co ions  

作　　者：LI TianJing LI GongPing CHEN JingSheng GAO XingXin PAN XiaoDong MA JunPing WANG YunBo 

机构地区：[1]School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China [2]Department of Material Science and Engineering,National University of Singapore,Singapore 119260

出　　处：《Science China(Physics,Mechanics & Astronomy)》2010年第10期1819-1822,共4页中国科学:物理学、力学、天文学(英文版)

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10375028);the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,and the SRF for ROCS,SEM

摘　　要：The ion implantation technique was employed to study the structural,magnetic,and optical properties of Co-doped crystalline ZnO.The photoluminescence measurements indicated that the center of green emission of implanted samples shifts gradually from 510 nm to 531 nm with an increase of Co concentrations.All implanted samples are ferromagnetic at room temperature with a saturation magnetization from 6.89×10-5 to 2.31×10-4 emu.The possible mechanisms on the observed ferromagnetism were discussed.The ion implantation technique was employed to study the structural,magnetic,and optical properties of Co-doped crystalline ZnO.The photoluminescence measurements indicated that the center of green emission of implanted samples shifts gradually from 510 nm to 531 nm with an increase of Co concentrations.All implanted samples are ferromagnetic at room temperature with a saturation magnetization from 6.89×10-5 to 2.31×10-4 emu.The possible mechanisms on the observed ferromagnetism were discussed.

关 键 词：CO ZNO ion implantation FERROMAGNETISM 

分 类 号：TN304.21[电子电信—物理电子学]