Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4997
Title: Valence fluctuation and electron–phonon coupling in La₆₈₋ₓCeₓAl₁₀Cu₂₀Co₂(x = 0, 34, and 68) metallic glasses
Authors: Tang, MB
Wang, JQ
Wang, WH
Xia, L
Chan, KC 
Zhao, JT
Keywords: Aluminium alloys
Cerium alloys
Cobalt alloys
Copper alloys
Electron-phonon interactions
Gruneisen coefficient
Lanthanum alloys
Magnetic susceptibility
Metallic glasses
Mixed valence compounds
Specific heat
Thermal expansion
Issue Date: 1-Aug-2010
Publisher: American Institute of Physics
Source: Journal of applied physics, 1 Aug. 2010, v. 108, no. 3, 033525, p. 1-5 How to cite?
Journal: Journal of applied physics 
Abstract: We study the anomalous acoustic softening behavior in La₆₈₋ₓCeₓAl₁₀Cu₂₀Co₂(x=0, 34, and 68) metallic glasses by magnetic susceptibility, thermal expansion, and specific heat at low temperatures. The Ce-based metallic glass exhibits valence fluctuation phenomenon, anomalous thermal expansion and acoustic Grüneisen parameter at low temperatures. And we provide experimental evidence of the existence of strong electron–phonon coupling in the Ce-based metallic glasses by specific heat. The anomalous acoustic and thermal properties are attributed to the valence instability in the metallic glasses.
URI: http://hdl.handle.net/10397/4997
ISSN: 0021-8979 (print)
1089-7550 (online)
DOI: 10.1063/1.3467516
Rights: © 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in M. B. Tang et al., J. Appl. Phys. 108, 033525 (2010) and may be found at http://link.aip.org/link/?jap/108/033525.
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