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	Hydrogenation induced transformation of paramagnetism to room-temperature ferromagnetism in co-doped TiO2 ceramics
	Wang, Yi ; Sun, Lei ; Kong, Ling-Gang ; Kang, Jin-Feng ; Zhang, Xing ; Han, Ru-Qi
	2006
关键词	ceramics room-temperature ferromagnetism nanoparticle hydrogenation THIN-FILMS TRANSITION ANATASE RUTILE
英文摘要	Effects of CoxTi1-xO2-delta on the sinterability and the ferromagnetism properties of Co2O3/TiO2 (0.0 < x < 0.06) ceramics are investigated in this paper. It is found that the Co-doped TiO2 ceramics transform from paramagnetism to room-temperature ferromagnetism (RTFM) after hydrogenation. With annealing temperatures at 600 degrees C and 1000 degrees C, these as-prepared samples present anatase and rutile structures respectively, which are analyzed with X-ray diffraction (XRD). After hydrogenation, the relation between temperature variations and the magnetic susceptibility for the hydrogenated samples were measured under zero-field-cooled and field-cooled conditions by using SQUID magnetometer. And the hysteresis loops are observed. These ferromagnetism resonance data suggest that the observed RTFM is at least partly due to the Cobalt nano-particles in our hydrogenated samples.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000241750700026&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Materials Science, Ceramics; SCI(E); EI; CPCI-S(ISTP); 2
语种	英语
DOI标识	10.1007/s10832-006-9885-1
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/153003]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Wang, Yi,Sun, Lei,Kong, Ling-Gang,et al. Hydrogenation induced transformation of paramagnetism to room-temperature ferromagnetism in co-doped TiO2 ceramics. 2006-01-01.

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