AFFINE YANG-MILLS THEORY AND AFFINE SELF-DUAL CHERN-SIMONS SOLITONS

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	AFFINE YANG-MILLS THEORY AND AFFINE SELF-DUAL CHERN-SIMONS SOLITONS
	ZHANG, YZ
刊名	LETTERS IN MATHEMATICAL PHYSICS
	1992
卷号	26 期号:3 页码:219
关键词	NONLINEAR SCHRODINGER-EQUATION WZNW MODELS CS THEORIES PLANE
ISSN号	0377-9017
通讯作者	ZHANG, YZ: UNIV QUEENSLAND,DEPT MATH,BRISBANE,QLD 4072,AUSTRALIA.
中文摘要	From room-temperature X-ray powder analysis, alloys with composition RE6Fe11Al3 (RE = La, Ce, Pr, Nd, Sm, mischmetal) and RE6Fe13Ge (RE= Pr, Nd)were observed to crystallize with the tetragonal La6Co11Ga3-type structure and the Nd6Fe13Si-type structure, respectively. The alloys were arc-melted, annealed in silica tubes at 600 to 800-degrees-C for up to 120 h and quenched. The compounds of RE = La, Pr, Nd and MM with aluminium order magnetically at 281-285 K, whereas the compounds with germanium order at 303 K for RE = Pr and at 352 K for RE = Nd. All have a small net magnetization (2-13 J T-1 kg-1), which is ascribed to a ferrimagnetic spin structure of the iron sublattices (4d down, 16k up, 16l1 down, 16l2 up or 4d up, 16k up, 16l1 down, 16l2 down). The compounds with Al, including RE = La, exhibit a sharp increase in magnetization in an applied field of 3-5 T at 6 K, and a similar effect is seen in the compounds with Ge, which is attributed to a ferrimagnetic --> ferromagnetic transition of the iron sublattices. The rare-earth sublattices are antiferromagnetic and noncollinear. The average iron moment, deduced from the average Fe-57 hyperfine field, is 1.5mu(B) for the Al compounds, and 2.0mu(B) for the Ge compounds. The largest iron moments (2.4mu(B)) are on 4d sites, while the smallest (1.2mu(B))are on 16l2 sites.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33507]
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	ZHANG, YZ. AFFINE YANG-MILLS THEORY AND AFFINE SELF-DUAL CHERN-SIMONS SOLITONS[J]. LETTERS IN MATHEMATICAL PHYSICS,1992,26(3):219.
APA	ZHANG, YZ.(1992).AFFINE YANG-MILLS THEORY AND AFFINE SELF-DUAL CHERN-SIMONS SOLITONS.LETTERS IN MATHEMATICAL PHYSICS,26(3),219.
MLA	ZHANG, YZ."AFFINE YANG-MILLS THEORY AND AFFINE SELF-DUAL CHERN-SIMONS SOLITONS".LETTERS IN MATHEMATICAL PHYSICS 26.3(1992):219.