Enhanced low field magnetoresistance in Sr2FeMoO6-glass composites

IMR OpenIR

	Enhanced low field magnetoresistance in Sr2FeMoO6-glass composites; Enhanced low field magnetoresistance in Sr2FeMoO6-glass composites
	X. J. Wang; X. Q. Zhang; Y. Sui; J. G. Cheng; Z. G. Liu; J. P. Miao; X. Q. Huang; Z. Lu; Z. N. Qian; W. H. Su; J. K. Tang
	2006 ; 2006
发表期刊	Journal of Applied Physics ; Journal of Applied Physics
ISSN	0021-8979 ; 0021-8979
卷号	99 期号:8
摘要	In this paper, we report the enhancement of the low field magnetoresistance in Sr2FeMoO6-glass composites with different wt % percents of glass. The crystal structure of Sr2FeMoO6 does not change by adding glass, and the glass is most likely located at the grain boundaries. The low field magnetoresistance up to 1 T of Sr2FeMoO6-glass composites at 10 K all shows obvious butterfly-shaped field dependence other than the pure Sr2FeMoO6 bulk sample. The magnetoresistance of Sr2FeMoO6-glass composites at 10 K is enhanced gradually with increasing the glass concentration and reaches 39% with a wt % of 50%. The enhancement of low field magnetoresistance in Sr2FeMoO6-glass composites can be well explained by the spin-dependent tunneling at the glass boundaries, and it also allowed us to conclude that the spin polarization of Sr2FeMoO6 is at least 80% at low temperature. (C) 2006 American Institute of Physics.; In this paper, we report the enhancement of the low field magnetoresistance in Sr2FeMoO6-glass composites with different wt % percents of glass. The crystal structure of Sr2FeMoO6 does not change by adding glass, and the glass is most likely located at the grain boundaries. The low field magnetoresistance up to 1 T of Sr2FeMoO6-glass composites at 10 K all shows obvious butterfly-shaped field dependence other than the pure Sr2FeMoO6 bulk sample. The magnetoresistance of Sr2FeMoO6-glass composites at 10 K is enhanced gradually with increasing the glass concentration and reaches 39% with a wt % of 50%. The enhancement of low field magnetoresistance in Sr2FeMoO6-glass composites can be well explained by the spin-dependent tunneling at the glass boundaries, and it also allowed us to conclude that the spin polarization of Sr2FeMoO6 is at least 80% at low temperature. (C) 2006 American Institute of Physics.
部门归属	harbin inst technol, dept appl phys, ccmst, harbin 150001, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china. univ new orleans, dept phys, new orleans, la 70148 usa.;su, wh (reprint author), harbin inst technol, dept appl phys, ccmst, harbin 150001, peoples r china;suiyu@hit.edu.cn ; harbin inst technol, dept appl phys, ccmst, harbin 150001, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china. univ new orleans, dept phys, new orleans, la 70148 usa.;su, wh (reprint author), harbin inst technol, dept appl phys, ccmst, harbin 150001, peoples r china;suiyu@hit.edu.cn
关键词	Double Perovskite Sr2femoo6 Double Perovskite Sr2femoo6 Tunneling Magnetoresistance Tunneling Magnetoresistance Thin-films Thin-films Systems Systems
URL	查看原文 ; 查看原文
WOS记录号	WOS:000237404200457 ; WOS:000237404200457
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34531
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. J. Wang,X. Q. Zhang,Y. Sui,et al. Enhanced low field magnetoresistance in Sr2FeMoO6-glass composites, Enhanced low field magnetoresistance in Sr2FeMoO6-glass composites[J]. Journal of Applied Physics, Journal of Applied Physics,2006, 2006,99, 99(8).
APA	X. J. Wang.,X. Q. Zhang.,Y. Sui.,J. G. Cheng.,Z. G. Liu.,...&J. K. Tang.(2006).Enhanced low field magnetoresistance in Sr2FeMoO6-glass composites.Journal of Applied Physics,99(8).
MLA	X. J. Wang,et al."Enhanced low field magnetoresistance in Sr2FeMoO6-glass composites".Journal of Applied Physics 99.8(2006).