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Author Joshi, Subodh ♦ Chand, Manesh ♦ Dabral, Krishna ♦ Semalty, P. D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ DENSITY OF STATES ♦ GREEN FUNCTION ♦ INTERMETALLIC COMPOUNDS ♦ NICKEL ♦ PALLADIUM ♦ PHONONS ♦ POTENTIALS ♦ RESONANCE
Abstract A modified embedded atom method (MEAM) potential model up to second neighbours has been used to calculate the phonon dispersions for Ni{sub 0.55}Pd{sub 0.45} alloy in which Pd is introduced as substitutional impurity. Using the force-constants obtained from MEAM potential, the local vibrational density of states in host Ni and substitutional Pd atoms using Green’s function method has been calculated. The calculation of phonon dispersions of NiPd alloy shows a good agreement with the experimental results. Condition of resonance mode has also been investigated and resonance mode in the frequency spectrum of impurity atom at low frequency is observed.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-05-06
Publisher Place United States
Volume Number 1728
Issue Number 1


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