Electrical Transport Properties in Sr2FeMoO6/NzO (N = Cu, Mn, Fe, Cr) Composites
(0) Granular systems: Sr2FeMoO6, (1 - x ) Sr2FeMo06/xCuO, (1 - x ) Sr2FeMoO6/xMnO, (1 - x) Sr2FeMoO6/xFe2O3, (1 - x)Sr2FeMoO6/xFeCrO3(x = 0, 0.03, 0.06, 0.09, 0.20mol) were fabricated by sol-gel and physically mixed processes. XRD spectrums showed the samples preferable phase, transport properties were investigated after scaling the room-temperature resistance(R) through four point probe method. When the number of the doping grain is increasing, the samples with the same boundaries display different transport behaviors for the rang of x < 9 ％ and x > 9 ％ , the x = 9 ％ samples have a minimum value, while for the different grain boundaries, R is discrepant. Optimizing the boundary among the main grains can effectively change the electrical transport properties in double- perovskite structure Sr2FeMoO6 composites, also doping the appropriate ferromagnetic metallic granular as boundaries could gained the perfect electrical transport properties.
Double-perovskites, Sr2FeMoO6, Granular, Composites, Grain boundary
Zhang Zhong Feng Xiupeng Huang Jinzhao Sun Maofeng Li shishuai Li Shanliang Tao Yewei
School of Science University of Jinan NO.106, Jiwei Road, Jinan, 250022 China Bureau of Education, Shizhong District of Jinan, China No.162, Weier Road, Jinan, 25001 China Shool of Science Nanjing University of posts and telecommunications, China No.66, Xinfan Road, Nanji
国际会议
沈阳
英文
237-239
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）