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Acta Metall Sin  2008, Vol. 44 Issue (3): 277-280     DOI:
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Structure and magnetic property of nanometric Fe-ZnSe granular films
ZHANG Lin; ZHANG Liansheng
山东大学
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ZHANG Lin; ZHANG Liansheng. Structure and magnetic property of nanometric Fe-ZnSe granular films. Acta Metall Sin, 2008, 44(3): 277-280 .

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Abstract  Fex(ZnSe)1-x granular films were fabricated by the radio frequency sputtering, and the structures and magnetic properties of nanometer ferromagnetic metal-semiconductor matrix Fex(ZnSe)1-x granular films have been studied. According to the dependence of low field susceptibility on temperature and the hysteresis loops at different temperature, it was found that the nanometer-sized Fe particles in granular films showed the magnetic relaxation effect at definite temperature. The magnetic property of granular films changes from super-paramagnetic into ferromagnetic at the blocking temperature TB=50K. Above the blocking temperature, the MS(T) of the granular films follows the Bloch's the spin wave T3/2 law. The causes of increase of the spin wave constant are explored and analyzed.
Key words:  nanometer metal granular film      structure      super-paramagnetic property      spin wave      
Received:  02 August 2007     
ZTFLH:  TB383  

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https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2008/V44/I3/277

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