MICROSTRUCTURE AND MAGNETIC PROPERLY OF Fe_x(In_2O_3)_(1-x) MAGNETIC GRANULAR FILMS

Acta Metall Sin

1998, Vol. 34

Issue (10): 1095-1098 DOI:

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MICROSTRUCTURE AND MAGNETIC PROPERLY OF Fe_x(In_2O_3)_(1-x) MAGNETIC GRANULAR FILMS

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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. MICROSTRUCTURE AND MAGNETIC PROPERLY OF Fe_x(In_2O_3)_(1-x) MAGNETIC GRANULAR FILMS. Acta Metall Sin, 1998, 34(10): 1095-1098.

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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.

Key words: metallic granular film microstructure semiconductor super-paramagnetism

Received: 18 October 1998

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