ECRYS - 93
J. Phys. IV France 03 (1993) C2-247-C2-250
Specific heat at CDW transitions in bronzesM. CHUNG1, Y.-K. KUO1, G. MOZURKEWICH2, E. FIGUEROA1, Z. TEWELDEMEDHIN3, D.A. DI CARLO4, M. GREENBLATT3 and J.W. BRILL1
1 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.
We have measured the specific heat of single crystals of P4W8O32, P4W12O44, and K0.3MoO3 at their CDW transitions. For K0.3MoO3, 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