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Phonon Frequency Distribution of Alpha‐Iron
Author(s) -
Sharan B.,
Tiwari L. M.
Publication year - 1963
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19630030813
Subject(s) - brillouin zone , phonon , debye , distribution (mathematics) , debye model , specific heat , condensed matter physics , phase (matter) , space (punctuation) , materials science , physics , thermodynamics , mathematical analysis , mathematics , quantum mechanics , linguistics , philosophy
The phonon frequency distribution and the specific heat of α‐iron is determined using DE LAUNAY'S model. The unit cell of phase space is divided into 10 × 10 × 10 parts, the calculations being conifed to the first Brillouin‐Zone. A new method for evaluating specific heats at low temperatures, by using a Debye sphere, is discussed. The agreement between the experimental and calculated heat capacities is reasonably good.