Lattice of Partly Permanent Dipoles

R. A. Toupin (1) , M. Lax (2)

1 NRL - Naval Research Laboratory
2 Bell Telephone Laboratories

The electric susceptibility of a lattice of partly permanent dipoles is determined as a function of the temperature and molecular parameters. The calculation is based on the spherical model approximation. The susceptibility has a discontinuous slope at a critical temperature Tc. Numerical techniques are developed for the evaluation of Tc which may have application elsewhere in the statistical theory of lattices. The theory predicts a critical temperature of 98°K for solid hydrogen bromide which corresponds to a measured value of 89°K.

Domaines: Physique mathématique [math-ph]; Physique mathématique [math-ph]

R. A. Toupin, M. Lax. Lattice of Partly Permanent Dipoles. Journal of Chemical Physics, 1957, 27 (2), pp.458-464. ⟨hal-00851887⟩