Thermodynamic anomaly above the superconducting critical temperature in the 
quasi-one-dimensional superconductor Ta4Pd3Te16

Helm, Toni; Flicker, F.; Kealhofer, R.; Moll, P. J. W.; Hayes, I. M.; Breznay, N. P.; Li, Z.; Louie, S. G.; Zhang, Q. R.; Balicas, L.; Moore, J. E.; Analytis, J. G.

doi:10.1103/PhysRevB.95.075121

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Thermodynamic anomaly above the superconducting critical temperature in the quasi-one-dimensional superconductor Ta₄Pd₃Te₁₆

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Helm, Toni
Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Helm, T., Flicker, F., Kealhofer, R., Moll, P. J. W., Hayes, I. M., Breznay, N. P., et al. (2017). Thermodynamic anomaly above the superconducting critical temperature in the quasi-one-dimensional superconductor Ta₄Pd₃Te₁₆. Physical Review B, 95(7): 075121, pp. 1-8. doi:10.1103/PhysRevB.95.075121.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002C-B0B1-C

Abstract

We study the intrinsic electronic anisotropy and fermiology of the quasi-one-dimensional superconductor Ta4Pd3Te16. Below T* = 20 K, we detect a thermodynamic phase transition that predominantly affects the conductivity perpendicular to the quasi-one-dimensional chains. The transition relates to the presence of charge order that precedes superconductivity. Remarkably, the Fermi surface pockets detected by de Haas-van Alphen 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.