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Heat Conductivity of the Cooperative Vibronic System TmVO 4
Author(s) -
Daudin B.,
Mutscheller W.,
Wagner M.
Publication year - 1984
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.2221220108
Subject(s) - formalism (music) , thermal conductivity , phonon , condensed matter physics , conductivity , phase transition , materials science , scattering , thermal , thermodynamics , chemistry , physics , optics , art , musical , visual arts
TmVO 4 thermal conductivity is measured between 80 mK and 50 K for H = 0 and 70 kOe. It is found that a large phonon scattering is present at H = 0 compared to the H = 70 kOe measurement. Using a Mori‐Zwanzig formalism, a theoretical analysis may explain the general behaviour in the temperature region below the phase transition temperature.