Syntheses, Crystallographic and Magnetic Properties of Nd_3Fe_(29-x)Cr_x and Other Associated Compounds
Syntheses, Crystallographic and Magnetic Properties of Nd_3Fe_(29-x)Cr_x and Other Associated Compounds作者机构:Department of Applied Physics Faculty of Engineering Tohoku University Sendai 980-77 Japan Material Science Center Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China
出 版 物:《Journal of Materials Science & Technology》 (材料科学技术(英文版))
年 卷 期:2000年第16卷第3期
页 面:261-268页
核心收录:
学科分类:080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学]
基 金:Project ofJapan Society for the Promotion of Science(JSPS)and the State Committee of Science and Technolgoy China
主 题:Fe Crystallographic and Magnetic Properties of Nd3Fe x)Cr_x and Other Associated Compounds Syntheses Nd
摘 要:A systematic study of syntheses and magnetic properties of the Nd_3Fe_(29-x)Cr_x (x=4.5, 4.7, 5.0, and 5.5) compounds has been performed. The single-phase compounds of Nd_3Fe_(29-x)Cr_x can be formed in the range 4.5≤ x ≤ 5.5. The Curie temperature T_C, the saturation magnetization M_s at 4.2 K, the anisotropy field H_A at 4.2 K and room temperature. and the intra-sublattice exchange coupling parameter j_(FeFe) at 4.2 K for the Nd_3Fe_(29-x)Cr_x compounds decrease with increasing Cr composition from x=4.5 to 5.5, respectively. Nitrogenation and carbonation, unlike hydrogenation. result mainly in improvements of the Curie temperature, the saturation magnetization and the anisotropy field at 4.2 K and room temperature for the Nd_3Fe_(29-x)Cr_x compounds compared with their parent compounds.