人工晶体学报2011，Vol.40Issue(4)：898-902,5.
Mg掺杂对ZnO薄膜结构与磁性的影响
Structure and Magnetic Properties of Mg Doped ZnO Thin Films
摘要
Abstract
Zn1_xMgxO (x =0. 075, 0. 25, 0. 15 , 0. 35 , 0. 65) thin films were doposited by pulsed laser deposition (PLD) on Si( 100) substrate. The influence of annealing temperature and oxygen pressure on the structure and magnetic properties of Zn1-x MgxO was investigated. The results of X-ray diffraction ( XRD) revealed that the Mg content would affect the structure of Zn1-xMgx 0 thin films. The structure ofZn1-xMgxO thin films changed from hexagonal wurtzite structure to cubic structure and the magnetism of films enhanced as x ≥0. 25. The saturation magnetism ( Ms) increased firstly, then decreased with the increase of oxygen pressure and annealing temperature. The analytical results indicated that the variations of magnetic properties are all concerned with the defect concentration around the surface of films.关键词
Mg掺杂ZnO薄膜/室温铁磁性/表面缺陷Key words
Mg doped ZnO thin films/room temperature ferromagnetism/surface defect分类
数理科学引用本文复制引用
黄文娟,方庆清,王伟娜,吴克跃,张瀚铭,张启平..Mg掺杂对ZnO薄膜结构与磁性的影响[J].人工晶体学报,2011,40(4):898-902,5.基金项目
安徽省自然科学基金(090414177) （090414177）
