Solid state Pomeranchuk effect

M. A. Continentino; A. S. Ferreira; P. G. Pagliuso; C. Rettori; J. L. Sarrao

doi:10.1016/j.physb.2005.01.213

paper

Solid state Pomeranchuk effect

arXiv:cond-mat/0408191 · doi:10.1016/j.physb.2005.01.213

Abstract

Recently we have shown that $Y b I n C u_{4}$ and related compounds present a solid state Pomeranchuk effect. These systems have a first order volume transition where a local moment phase coexists with a renormalized Fermi liquid in analogy with $^{3} H e$ at its melting curve. We demonstrate here experimentally that the solid state Pomeranchuk effect, controlled by a magnetic field, can be used to produce cooling.

2 pages, 3 figures, to be published in the Proceedings of SCES04 Conference, PHYSICA B