Lattice Vibrations and Debye Temperatures of Transition Metals

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概要

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• The frequency-wave vector dispersion relations for the normal modes ofvibration in the major symmetry directions of transition metals chromium andtantalum have been computed on the basis of modified non-central force model ofBehari and Tripathi which takes into account Clark et at. type angular forces andSharma and Joshi type volume forces. The results show a satisfactory agreementwith the curves obtained from recent coherent inelastic neutron scattering experi-ments. Blackmann's root sampling teclmique for a discrete subdivision in thereciprocal space is used to determine the frequency spectra. The calculatedfrequency spectra have been incorporated in the study for the computations ofspecific heats and equivalent Debye-temperatures of these metals. The resultsshow a reasonably satisfactory agreement with experiments.

• 社団法人日本物理学会の論文
• 1978-06-15

著者

• Pathak L.P.

  Department of Physics,Allahabad University

• Rai R.C.

  Department of Physics,Allahabad University

• Hemkar M.P.

  Department of Physics,Allahabad University

関連論文

• Lattice Vibrations and Debye Temperatures of Transition Metals

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