Abstract
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
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References
P N Ram and R D Bijalwan,J. Phys. F13, 41 (1983)
R D Bijalwan and P N Ram,Phys. Status Solidi B113, 691 (1983)
R D Bijalwan and P N Ram,J. Phys. Chem. Solids 44, 1077 (1983)
P N Ram, P D Semalty and R D Bijalwan,J. Phys. F18, 393 (1988)
Caudron Rene, Meunier Jean-Jaacques and Costa Paul,Solid State Commun. 14, 975 (1974)
Y Takashashi and R L Jacobs,J. Phys. F12, 529 (1982)
R Ehrat, A C Ehrlich and D Rivir,J. Phys. Chem. Solids 29, 799 (1968)
P Bosi, F Mengiger and F Sacchetti,J. Phys. F10, 1673 (1980)
J C Ho and R Viswanathan,Phys. Rev. 172, 705 (1968)
M Dixon, F E Hoare and T M H Holden,Proc. R. Soc. A303, 3391 (1968)
Rene Caudron, Renaud Caplai, Jean-Jacques Meunier and Costa Paul,Phys. Rev. B8, 5247 (1973)
A A Maradudin, E W Montroll, G H Weiss and F P Ipatova,Solid State Phys. Suppl. 3, 2nd edn (Academic Press, New York, 1971)
G Gilat and L J Raubenheimer,Phys. Rev. 144, 390 (1966)
R J Birgeneau, J Cordes, G Dolling and A D B Woods,Phys. Rev. A136, 1359 (1964)
P N Ram,Phys. Rev. B37, 6738 (1988)
P H Dederichs and R Zeller, inPoint defects in metals II, edited by G Hohler and E H Niekisch, Springer Tracts in Modern Physics 87 (Springer-Verlag, Berlin, 1979)
P N Ram and P H Dederichs,Z. Phys. B42, 51 (1981)
P N Ram and P H Dederichs,Kernforschungsanlage Julich, Report No. JUI 1725 (1981)
P N Ram,Radiation effects and defects in solids,118, 1 (1991)
P D Semalty and Kapil Dev,Indian J. Phys. 79, 1279 (2005)
P D Semalty, Calculation of local density of states and lattice specific heat of gold and silver alloys at very low temperature,J. Alloys Compounds (in Press), Accepted Sept. 2005, Corrected proof available on line in Science Direct Nov. 2005
B K Rath and P N Ram,Phys. Sol. B156, 137 (1989)
D J Bower, E Claridge and I S T Tsang,Phys. Status Solidi 29, 217 (1968)
H W King,J. Matter. Sci. 1, 79 (1966)
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Semalty, P.D., Dev, K. & Ram, P.N. Lattice specific heat and local density of states of Ni-based dilute alloys at low temperature. Pramana - J Phys 66, 1077–1092 (2006). https://doi.org/10.1007/BF02708461
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DOI: https://doi.org/10.1007/BF02708461
Keywords
- Lattice specific heat
- local density of states
- dilute alloys
- resonance modes
- Green’s function
- force-constant
- substitutional impurity