P N Ram
Articles written in Pramana – Journal of Physics
Volume 66 Issue 6 June 2006 pp 1077-1092
Lattice specific heat and local density of states of Ni-based dilute alloys at low temperature
A detailed theoretical study of the low-temperature lattice specific heat of Ni-based dilute alloys has been carried out. Lattice Green’s function method has been used to calculate the local density of states of substitutional impurities and lattice specific heat in different alloys. The resonance condition has been investigated for possible occurrence of resonance modes. Except in NiCr and NiMn, low-frequency resonance modes have been obtained in all the alloys. However, no localized mode was obtained. The impurity-induced increase in lattice specific heat is explained on the basis of the obtained resonance modes. The calculation shows an excellent agreement with the measured lattice specific heat in these alloys
Volume 80 Issue 6 June 2013 pp 1041-1054
Vibrational properties of vacancy in bcc transition metals using embedded atom method potentials
Vandana Gairola P D Semalty P N Ram
The embedded atom method (
Volume 97, 2023
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