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Title: Magnetic and magneto-transport properties of double perovskite Sr 2FeMoO6 with Co doping
Authors: Wang, X.
Sui, Y.
Cheng, J.
Qian, Z.
Miao, J.
Liu, Z.
Zhu, R.
Su, W.
Tang, J.
Ong, C.K. 
Issue Date: 17-Jan-2007
Citation: Wang, X., Sui, Y., Cheng, J., Qian, Z., Miao, J., Liu, Z., Zhu, R., Su, W., Tang, J., Ong, C.K. (2007-01-17). Magnetic and magneto-transport properties of double perovskite Sr 2FeMoO6 with Co doping. Journal of Physics Condensed Matter 19 (2) : -. ScholarBank@NUS Repository.
Abstract: The electrical, magnetic and magnetoresistance properties of polycrystalline Sr2Fe1-xCoxMoO6 compounds with x ≤ 0.0, 0.05, 0.15 and 0.25 were investigated. With increasing Co content, both the degree of cationic order and the saturation magnetic moment per formula unit of these compounds increase, while their resistivity decreases monotonically and exhibits an enhanced metallic behaviour for x≥0.15. The low-field magnetoresistance was greatly enhanced at x ≤ 0.15, and the field dependence of magnetoresistance for x≥0.15 almost saturates above 1.5 T. These results can be well explained by the change of magnetic structure of Sr2FeMoO6 after replacing partial Fe ions by Co ions. The enhanced metallic behaviour and low-field magnetoresistance also suggest a great application potential in spin electronic devices. © IOP Publishing Ltd.
Source Title: Journal of Physics Condensed Matter
ISSN: 09538984
DOI: 10.1088/0953-8984/19/2/026215
Appears in Collections:Staff Publications

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