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Crystallographic and magnetic properties of the hydrides R3Fe29-xCrxHy (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy)
Han, XF; Xu, RG; Wang, XH; Pan, HG; Miyazaki, T; Baggio-Saitovitch, E; Yang, FM; Cheng, CP
Corresponding AuthorHan, XF()
1998-08-10
Source PublicationJOURNAL OF PHYSICS-CONDENSED MATTER
ISSN0953-8984
Volume10Issue:31Pages:7037-7047
AbstractA systematic study of the structural and intrinsic magnetic properties of the hydrides R3Fe29-xCrxHy (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy) has been performed. Hydrogenation lends to a relative volume expansion of the unit cell and a decrease in x-ray density for each compound. Anisotropic expansions mainly along the n- and b-axes rather than along the c-axis for all of the compounds upon hydrogenation are observed. The lattice constants and the unit-cell volume of R3Fe29-xCrx and R3Fe29-xCrxHy decrease with increasing R atomic number from Nd to Dy, except for Ce, reflecting the lanthanide contraction. Hydrogenation results in an increase in the Curie temperature and a corresponding increase in the saturation magnetization at room temperature for each compound. After hydrogenation a decrease of 0.34 mu(B)/Fe in the average Fe atomic magnetic moment and a slight increase in the anisotropy field for Y3Fe27.2Cr1.8 are achieved at 4.2 K. First-order magnetization processes (FOMP) occur in magnetic fields of around 1.5 T and 4.0 T at 4.2 K for Nd3Fe24.5Cr4.5H5.0 and TD3Fe27.0Cr2.0H2.8, and around 1.4 T at room temperature for Gd3Fe28.0Cr1.0H4.2. The abnormal crystallographic and magnetic properties of Ce3Fe25.0Cr4.0 and Ce3Fe25.0Cr4.0H5.4 suggest that the Ce ion non-triply ionized.
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
WOS IDWOS:000075408400019
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/108435
Collection中国科学院金属研究所
Corresponding AuthorHan, XF
Affiliation1.Chinese Acad Sci, Inst Semicond, Ctr Mat Sci, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
3.Zhejiang Univ, Dept Mat, Hangzhou 310027, Peoples R China
4.Tohoku Univ, Fac Engn, Dept Appl Phys, Sendai, Miyagi 98077, Japan
5.Ctr Brasileiro Pesquisas Fis, Urac, RJ, Brazil
Recommended Citation
GB/T 7714
Han, XF,Xu, RG,Wang, XH,et al. Crystallographic and magnetic properties of the hydrides R3Fe29-xCrxHy (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy)[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,1998,10(31):7037-7047.
APA Han, XF.,Xu, RG.,Wang, XH.,Pan, HG.,Miyazaki, T.,...&Cheng, CP.(1998).Crystallographic and magnetic properties of the hydrides R3Fe29-xCrxHy (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy).JOURNAL OF PHYSICS-CONDENSED MATTER,10(31),7037-7047.
MLA Han, XF,et al."Crystallographic and magnetic properties of the hydrides R3Fe29-xCrxHy (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy)".JOURNAL OF PHYSICS-CONDENSED MATTER 10.31(1998):7037-7047.
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