AC-SUSCEPTIBILITY ANOMALY AND MAGNETIC-ANISOTROPY OF R2CO17 COMPOUNDS, WITH R = Y, CE, PR, ND, SM, GD, TB, DY, HO, ER, TM, AND LU

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	AC-SUSCEPTIBILITY ANOMALY AND MAGNETIC-ANISOTROPY OF R2CO17 COMPOUNDS, WITH R = Y, CE, PR, ND, SM, GD, TB, DY, HO, ER, TM, AND LU
	X. C. Kou; T. S. Zhao; R. Grossinger; F. R. Deboer
	1992
发表期刊	Physical Review B
ISSN	0163-1829
卷号	46 期号:10 页码:6225-6235
摘要	The temperature dependence of the ac susceptibility, chi' and chi'', was measured in the temperature range from 4.2 to 300 K for various polycrystalline compounds R2Co17, with R = Y, Ce, Pr, Nd, SM, Gd, Tb, Dy, Ho, Er, Tm, and Lu and single-crystalline compounds R2Co17, with R = Pr, Nd, Dy, Tb, Ho, and Er. A spin-reorientation transition was traced in Pr2Co17 and Nd2Co17 at 180 and 175 K, respectively. An anomalous phenomenon, which was observed in R2Co17 compounds, with R = Tb, Dy, and Ho, is characterized by a peak in the curve of chi' and chi'' versus T. It is deduced that the nature of this anomalous phenomenon is correlated with the magnetic anisotropy within the basal plane. This anomaly is attributed to a temperature-induced domain-wall movement under excitation of the external ac field. For the uniaxial-anisotropy compounds Er2Co17 and Tm2Co17, a sharp change of the shape of the temperature dependence of the ac susceptibility was observed. No anomaly in chi'(T) and chi''(T) is detectable in Y2Co17, Ce2Co17, Gd2Co17, and Lu2Co17. The anisotropy field, H(A), of uniaxial-anisotropy Ce2Co17, Sm2Co17, Er2Co17, and Tm2Co17 has been determined by the singular-point-detection technique in the temperature range from 4.2 to 1000 K. The easy-magnetization direction of Ce2Co17 is found to be along the c axis over the whole magnetically ordered temperature.
部门归属	vienna tech univ,inst exptl phys,a-1040 vienna,austria. univ amsterdam,van der waals zeeman lab,1018 xe amsterdam,netherlands. acad sinica,inst met res,shenyang 110015,peoples r china. jilin univ,dept phys,changchun 130023,peoples r china.
关键词	Rare-earth Magnetocrystalline Anisotropy Intermetallic Compounds Spin-reorientation Transitions Moment Fields Curve
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/39246
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. C. Kou,T. S. Zhao,R. Grossinger,et al. AC-SUSCEPTIBILITY ANOMALY AND MAGNETIC-ANISOTROPY OF R2CO17 COMPOUNDS, WITH R = Y, CE, PR, ND, SM, GD, TB, DY, HO, ER, TM, AND LU[J]. Physical Review B,1992,46(10):6225-6235.
APA	X. C. Kou,T. S. Zhao,R. Grossinger,&F. R. Deboer.(1992).AC-SUSCEPTIBILITY ANOMALY AND MAGNETIC-ANISOTROPY OF R2CO17 COMPOUNDS, WITH R = Y, CE, PR, ND, SM, GD, TB, DY, HO, ER, TM, AND LU.Physical Review B,46(10),6225-6235.
MLA	X. C. Kou,et al."AC-SUSCEPTIBILITY ANOMALY AND MAGNETIC-ANISOTROPY OF R2CO17 COMPOUNDS, WITH R = Y, CE, PR, ND, SM, GD, TB, DY, HO, ER, TM, AND LU".Physical Review B 46.10(1992):6225-6235.