Low temperature specific heat of bulk glassy and crystalline Zr[sub 41]Ti[sub 14]Cu[sub 12.5]Ni[sub 10]Be[sub 22.5] alloys

Bai, Hai Yang; Luo, Jian Lin; Chen, Zhao Jia; Wang, Wei Hua
April 2001
Applied Physics Letters;4/30/2001, Vol. 78 Issue 18, p2697
Academic Journal
The low temperature specific heat of Zr[sub 41]Ti[sub 14]Cu[sub 12.5]Ni[sub 10]Be[sub 22.5] alloys in glassy and crystalline states has been investigated. The glassy state of the alloy shows much larger specific heat than that of the crystalline state. The density of states at the Fermi level and Debye temperatures, θ[sub D] of the alloys are determined. It is found that the density of states at the Fermi level for the glassy state is higher than that for crystalline state, the phenomenon is interpreted by localization of electrons in the glassy alloy. A much smaller value of θ[sub D] in the glassy state indicates marked soften transverse phonons compared to its corresponding crystalline state. © 2001 American Institute of Physics.


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