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Structural influence on atomic hopping and electronic states of Pd-based bulk metallic glasses

Tang, X.-P. and Löffler, Jörg F. and Schwarz, R. B. and Johnson, William L. and Wu, Yue (2005) Structural influence on atomic hopping and electronic states of Pd-based bulk metallic glasses. Applied Physics Letters, 86 (7). Art. No. 072104. ISSN 0003-6951.

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Atomic motion and electronic structures of Pd–Ni–Cu–P bulk metallic glasses were investigated using 31P nuclear magnetic resonance. The hopping rate of P atoms was determined by the stimulated echo technique. Significant hopping was observed in all alloys well below the glass transition temperature. Increasing the Cu content to above 25 at. % increases P hopping significantly, consistent with the previous finding that the openness of the structure increases with Cu content. In contrast, P hopping is not influenced by changes of local electronic states at P sites, induced by the substitution of Ni by Cu.

Item Type:Article
Additional Information:©2005 American Institute of Physics (Received 24 June 2004; accepted 21 December 2004; published online 9 February 2005) This work was supported by the US Army Research Office (Grant No. DAAD19-02-1-0225).
Subject Keywords:palladium alloys; nickel alloys; copper alloys; phosphorus alloys; metallic glasses; spin echo (NMR); band structure; glass transition; glass structure
Record Number:CaltechAUTHORS:TANapl05
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3278
Deposited By: Archive Administrator
Deposited On:25 May 2006
Last Modified:26 Dec 2012 08:53

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