Articles written in Pramana – Journal of Physics
Volume 47 Issue 6 December 1996 pp 435-445
Expressions for the higher order elastic constants are derived using the sublattice displacements to the second degree in strains. These expressions are used to obtain the higher order elastic constants and their pressure derivatives in gadolinium. The higher order elastic constants are used to find out the generalized Gruneisen parameters of the elastic waves propagating in different directions in gadolinium. The Brugger gammas are evaluated and the low temperature limit of the Gruneisen gamma is obtained. The results are compared with the available reported values.
Volume 67 Issue 3 September 2006 pp 535-540 Brief Reports
The generalized Grüneisen parameters (
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