%0 Journal Article
%T Giant magneto-optical Faraday effect of nanometer Fe-In2O3 granular films<br>
%A ZHANG Lin
%A ZHANG LianSheng
%A XIAO ShuQin
%A <br>
%J 科学通报(英文版)
%D 2008
%I 
%X The giant magneto-optical Faraday effect of nanometer ferromagnetic metal-semiconductor matrix Fe-In2O3 granular films prepared by the radio frequency sputtering are studied. The result shows that the Faraday rotation angle θ F value of the granular film samples with Fe volume fraction x = 35% is of the order of 105(°)/cm at room temperature. Temperature dependence of the Faraday rotation angle θ F of Fe0.35(In2O3)0.65 granular films shows that θ F value below 10 K increases rapidly with the decrease of the temperature, and when T = 4.2 K, θ F value is 106(°)/cm. Through the study of the dependence of low field susceptibility on temperature and the hysteresis loops at different temperatures, it has been found that when the temperature decreases to a critical point T P = 10 K, the transformation of state from ferromagnetic to spin-glass-like occurs in Fe0.35(In2O3)0.65 granular films. The remarkable increase of the Faraday rotation angle θ F value of Fe0.35(In2O3)0.65 granular films below 10 K seems to arise from the sp-d exchange interaction of the granular film samples in the spin-glass-like state. Supported by the National Natural Science Foundation of China (Grant No. 10674082)
%K granular films
%K magneto-optical Faraday effect
%K structure
%K magnetic property<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=696C9ECD9C707DC6A6F3607D6AEBF26E&yid=67289AFF6305E306&vid=8E6AB9C3EBAAE921&iid=5D311CA918CA9A03&sid=6DAA05ECA4CD5075&eid=966760CE8B6E636C&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=12