【摘要】 采用离子束溅射的方法制备了一系列不同原子比的FexSn1 0 0 x合金颗粒膜 ,系统地研究了该体系的反常霍耳效应 .在该薄膜中发现了铁磁金属 非磁金属体系中最大的霍耳电阻率 ,讨论了不同原子配比、薄膜厚度对霍耳效应的影响 .通过研究饱和霍耳电阻率 ρxys同电阻率 ρxx的关系 ,讨论了反常霍耳效应的机理 .更多还原

【Abstract】 A series of Fe x Sn 100- x granular alloy films with different atomic fractions were fabricated by ion beam sputtering. The highest value ever observed for ferromagnetic metal/non-magnetic metal systems has been obtained. The extraordinary Hall effect was studied systemically by varying the atomic fractions and the thickness of the samples. With the power law between the saturated Hall resistivity and the resistivity the mechanism of the extraordinary Hall effect was also discussed.更多还原