Critical behavior of the ferromagnetic perovskites RTiO3 (R = Dy, Ho, Er, Tm, Yb) by magnetocaloric measurements

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	Critical behavior of the ferromagnetic perovskites RTiO3 (R = Dy, Ho, Er, Tm, Yb) by magnetocaloric measurements
	Su, YT ; Sui, Y ; Cheng, JG ; Zhou, JS ; Wang, XJ ; Wang, Y ; Goodenough, JB
刊名	PHYSICAL REVIEW B
	2013
卷号	87 期号:19
ISSN号	1098-0121
通讯作者	Su, YT (reprint author), Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China.
中文摘要	Ferromagnetism in perovskites RTiO3 can be induced by a steric effect. The way in which the subtle local structural change can induce three-dimensional (3D) ferromagnetic coupling through Ti-O-Ti superexchange interactions remains controversial. A critical behavior study for the ferromagnetic phase has been made so far only on YTiO3 because the magnetization measurements are plagued by the contribution from the magnetic rare earth. Here we report critical exponents for most ferromagnetic members in the RTiO3 family by measuring the magnetocaloric effect and applying the corresponding scaling laws. Our results indicate that the ferromagnetic coupling in the RTiO3 can be well described by the 3D Heisenberg model.
资助信息	National Natural Science Foundation of China [10804024]; National Science Foundation Materials Interdisciplinary Research Teams in the USA [DMR-1122603]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56851]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Su, YT,Sui, Y,Cheng, JG,et al. Critical behavior of the ferromagnetic perovskites RTiO3 (R = Dy, Ho, Er, Tm, Yb) by magnetocaloric measurements[J]. PHYSICAL REVIEW B,2013,87(19).
APA	Su, YT.,Sui, Y.,Cheng, JG.,Zhou, JS.,Wang, XJ.,...&Goodenough, JB.(2013).Critical behavior of the ferromagnetic perovskites RTiO3 (R = Dy, Ho, Er, Tm, Yb) by magnetocaloric measurements.PHYSICAL REVIEW B,87(19).
MLA	Su, YT,et al."Critical behavior of the ferromagnetic perovskites RTiO3 (R = Dy, Ho, Er, Tm, Yb) by magnetocaloric measurements".PHYSICAL REVIEW B 87.19(2013).