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Calculation of lattice specific heat of bcc NbZr dilute alloy

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Field Value
 
Title Calculation of lattice specific heat of bcc NbZr dilute alloy
 
Creator Semalty, P D
Dev, Kapil
 
Subject Lattice specific heat
Dilute alloys
Resonance modes
Localized modes
Green’s function
Force-constant change
 
Description 658-662
The lattice specific heat at very low temperatures, using a perturbation model which includes the mass change and change in the nearest-neighbour force constants due to interaction between impurity and host atoms has been calculated. In addition to the local perturbation due to mass change and force-constant changes, the effect of volume change has also been taken into account. The calculated results have been compared with the experimental measurements and values of central and non-central force-constant changes have been obtained. The increase in lattice specific heat is explained on the basis of these force-constant changes. The possibility of occurrence of resonance and localized modes from the calculation of resonant denominator have been investigated.
 
Date 2008-12-19T09:34:58Z
2008-12-19T09:34:58Z
2007-08
 
Type Article
 
Identifier 0019-5596
http://hdl.handle.net/123456789/2640
 
Language en_US
 
Publisher CSIR
 
Source IJPAP Vol.45(8) [August 2007]