THE EFFECT OF GD SUBSTITUTION ON THE MAGNETIC-PROPERTIES AND HYPERFINE FIELDS OF MELT-SPUN ND4FE77.5B18.5 ALLOYS

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	THE EFFECT OF GD SUBSTITUTION ON THE MAGNETIC-PROPERTIES AND HYPERFINE FIELDS OF MELT-SPUN ND4FE77.5B18.5 ALLOYS
	CHENG, ZH ; MAO, MX ; SUN, JJ ; SHEN, BG ; WANG, FW ; YANG, CL ; LI, FS ; ZHANG, YD
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	1994
卷号	6 期号:36 页码:7437
关键词	FE-B ALLOYS SHORT-RANGE ORDER AMORPHOUS-ALLOYS CRYSTALLINE MOSSBAUER ND NMR
ISSN号	0953-8984
通讯作者	CHENG, ZH (reprint author), CHINESE ACAD SCI,INST PHYS,STATE KEY LAB MAGNET,BEIJING 100080,PEOPLES R CHINA.
中文摘要	The hyperfine fields (HFS) and magnetic properties of amorphous and crystallized Gd(x)Nd4-xFe77.5B18.5 (0 less-than-or-equal-to x less-than-or-equal-to 4) alloys have been investigated by means of magnetization measurements, zero-field spin-echo nuclear magnetic resonance (NMR) and Mossbauer effect (ME). For comparison, the x-ray diffraction (XRD) pattern of Nd4Fe77.5B18.5 annealed at 670-degrees-C for a short time is also presented. It is found that the Curie temperatures of amorphous alloys increase slightly on addition of Gd, but the coercive fields of crystallized alloys decrease monotonically with increasing x. NMR, ME and XRD indicate that these samples consist of Fe3B with a body-centred tetragonal structure (BCT Fe3B) and a small amount of alpha-Fe, with no Nd2Fe14B and Nd1.1Fe4B4 phases. Furthermore, the NMR results indicate that the B-11 HFS of BCT Fe3B increase linearly from 25.3 kOe (34.7 MHz) for x = 0 to 26.3 kOe (36.0 MHz) for x = 4, but that of alpha-Fe does not change with increasing Gd concentration; the Mossbauer spectra (MSS) show that the relative intensity of the subspectrum corresponding to Fe-57 at Fe(III)(8g) sites in BCT Fe3B is about 5% weaker than those of the other two, implying that about 5 at.% Fe atoms in this site are substituted by other atoms. According to this, it may be reasonable to assume that the R atoms enter into the BCT Fe3B.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/45034]
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	CHENG, ZH,MAO, MX,SUN, JJ,et al. THE EFFECT OF GD SUBSTITUTION ON THE MAGNETIC-PROPERTIES AND HYPERFINE FIELDS OF MELT-SPUN ND4FE77.5B18.5 ALLOYS[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,1994,6(36):7437.
APA	CHENG, ZH.,MAO, MX.,SUN, JJ.,SHEN, BG.,WANG, FW.,...&ZHANG, YD.(1994).THE EFFECT OF GD SUBSTITUTION ON THE MAGNETIC-PROPERTIES AND HYPERFINE FIELDS OF MELT-SPUN ND4FE77.5B18.5 ALLOYS.JOURNAL OF PHYSICS-CONDENSED MATTER,6(36),7437.
MLA	CHENG, ZH,et al."THE EFFECT OF GD SUBSTITUTION ON THE MAGNETIC-PROPERTIES AND HYPERFINE FIELDS OF MELT-SPUN ND4FE77.5B18.5 ALLOYS".JOURNAL OF PHYSICS-CONDENSED MATTER 6.36(1994):7437.