Meyer, A. and Busch, R. and Schober, H. (1999) Time-Temperature Superposition of Structural Relaxation in a Viscous Metallic Liquid. Physical Review Letters, 83 (24). pp. 5027-5029. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:MEYprl99
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Bulk metallic glass-forming Pd40Ni10Cu30P20 has been investigated in its equilibrium liquid by quasielastic neutron scattering. The quasielastic signal exhibits a structural relaxation as known from nonmetallic viscous liquids. Even well above the melting point, the structural relaxation is nonexponential and obeys a universal time-temperature superposition. From the mean relaxation times average diffusivities have been determined, resulting in values on a 10^-10 m^2 s^-1 scale, 3 orders of magnitude slower than in simple metallic liquids.
|Additional Information:||©1999 The American Physical Society Received 12 March 1999 We thank W.L. Johnson and W. Petry for their continuous support, J.F. Löffler for his help with the sample preparation, and W. A. Kamitakahara for a critical reading of the manuscript.|
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|Deposited On:||19 Aug 2007|
|Last Modified:||26 Dec 2012 09:39|
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