International Workshop on Electronic Crystals
ECRYS - 93

J. Phys. IV France 03 (1993) C2-247-C2-250
DOI: 10.1051/jp4:1993249

Specific heat at CDW transitions in bronzes

M. CHUNG¹, Y.-K. KUO¹, G. MOZURKEWICH², E. FIGUEROA¹, Z. TEWELDEMEDHIN³, D.A. DI CARLO⁴, M. GREENBLATT³ and J.W. BRILL<sup>1

1</sup>  Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055, U.S.A.
²  Research Laboratory, Ford Motor Company, Maildrop 3028, Dearbron, MI 48121, U.S.A.
³  Department of Chemistry, Rutgers, The State University of New Jersey, Piscataway, NJ 08855, U.S.A.
⁴  Laboratory of Atomic and Solid State Sciences, Cornell University, Ithaca, NY 14853, U.S.A.

Abstract
We have measured the specific heat of single crystals of P₄W₈O₃₂, P₄W₁₂O₄₄, and K_0.3MoO₃ at their CDW transitions. For K_0.3MoO₃, the anomaly is fit to a 3d-XY crossover model, and compared to the derivative of the susceptibility. For the phosphate tungsten bronzes, only the anomaly at the upper CDW transition in P₄W₁₂O₄₄ is resolved.

© EDP Sciences 1993