Thermodynamic Anomaly Above the Superconducting Critical Temperature in   the Quasi One-Dimensional Superconductor Ta$_4$Pd$_3$Te$_{16}$
  We study the intrinsic transport anisotropy and fermiology of the quasi one-dimensional superconductor Ta$_4$Pd$_3$Te$_{16}$. Below $T^*=20$ K we detect a thermodynamic phase transition that predominantly affects the conductivity perpendicular to the quasi one-dimensional chains, consistent with a thermodynamic transition related to the presence of charge order that precedes superconductivity. Remarkably the Fermi surface pockets detected by de Haas-van Alphen (dHvA) oscillations are unaffected by this transition, suggesting that the ordered state does not break any translational symmetries but rather alters the scattering of the quasiparticles themselves. 
T. Helm, F. Flicker, R. Kealhofer, P. Moll, I. M. Hayes, N. P.   Breznay, Z. Li, S. G. Louie, Q. R. Zhang, L. Balicas, J. E....
cond-mat.supr-con