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Fex(In2O31-x磁性颗粒膜的微结构与磁性

MICROSTRUCTURE AND MAGNETIC PROPERLY OF Fex(In2O31-x MAGNETIC GRANULAR FILMS

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【作者】 张连生张林张汝贞刘宜华张维咸黄宝歆

【Author】 ZHANG Liansheng; ZHANG Lin; ZHANG Ruzhen; LIU Yihua; ZHANG Weixian;HUANG Baoxin(Department of Physics, Shandong University, Jinan 250100)Correspondent: ZHANG Liansheng, associate professor Tel:(0531)8567032, Fax: (0531)8565167,E-mail: xmliu@sdu.edu.cn

【机构】 山东大学物理系!济南250100

【摘要】 用射频溅射法制备了金属/半导体Fex(In2O3)(1-x)颗粒膜.用XRD,TEM辅以磁性测量研究了该系列颗粒膜的微结构实验结果表明,纳米尺度的Fe颗粒均匀地分散在非晶态In2O3中.退火可使In2O3晶化,其晶格常数与Fe的体积分数有关;退火可使Fe颗粒长大,由超顺磁性变为铁磁性.

【Abstract】 Metal/semiconductor Fex (In2O3)1-x granular films were prepared by the rfsputtering. The microstructure was studied by using XRD, TEM and magnetic measurements.The results showed that the nanometer-sized Fe particles uniformly dispersed in the amorphousIn2O3. Appropriate annealing leads to the crystallization of In2O3 films and the growth of theFe particle size. As a result, the magnetic behavior of the films transits from superparamagneticto ferromagnetic. The variation of the lattice constant for In2O3 depends on the volume fractionof Fe particles.

【基金】 国家自然科学基金!59571016
  • 【文献出处】 金属学报 ,ACTA METALLRUGICA SINICA , 编辑部邮箱 ,1998年10期
  • 【分类号】TB383
  • 【被引频次】2
  • 【下载频次】28
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