Interlayer diffusion studies of a Laves phase exchange spring superlattice

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	Interlayer diffusion studies of a Laves phase exchange spring superlattice
	Wang, C ; Kohn, A ; Wang, SG ; Ward, RCC
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	2011
卷号	23 期号:11
关键词	MAGNETIC-PROPERTIES RARE-EARTH RESOLUTION ENERGY
ISSN号	0953-8984
通讯作者	Wang, C: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England.
中文摘要	We report very small Al-27 metallic shifts in a series of Cu-Zr-Al bulk metallic glasses. This observation and the Korringa type of spin-lattice relaxation behavior suggest that s-character wavefunctions weakly participate in bonding and opens the possibility of enhanced covalency (pd hybridization) with increasing Al concentration, in good agreement with elastic constants and hardness measurements. Moreover, ab initio calculations show that this bonding character originates from the strong Al 3p band and Zr 4d band hybridization since their atomic energy levels are closer to each other while the Al 3s band is localized far below the Fermi level. This study might provide a chemical view for understanding flow and fracture mechanisms of these bulk glass-forming alloys.
收录类别	SCI
资助信息	Engineering and Physical Sciences Research Council (EPSRC); UK Royal Academy of Engineering; National Basic Research Program of China [2009CB929203]; National Natural Science Foundation of China [50972163]
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/40161]
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	Wang, C,Kohn, A,Wang, SG,et al. Interlayer diffusion studies of a Laves phase exchange spring superlattice[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2011,23(11).
APA	Wang, C,Kohn, A,Wang, SG,&Ward, RCC.(2011).Interlayer diffusion studies of a Laves phase exchange spring superlattice.JOURNAL OF PHYSICS-CONDENSED MATTER,23(11).
MLA	Wang, C,et al."Interlayer diffusion studies of a Laves phase exchange spring superlattice".JOURNAL OF PHYSICS-CONDENSED MATTER 23.11(2011).