Role of the cooling rate in the stability of the superconducting phase of (TMTSF)2ClO4
Abstract
The noncentrosymmetric ClO4 anions of the organic superconductor (TMTSF)2ClO4 order below 24K. The size of domains where the anions are ordered is substantially dependent on the cooling rate which is a key parameter for the stability of the low temperature electronic ground states. We study the effect of the cooling rate on the SC phase within a self consistent approach in the framework of the time dependent Ginzburg-Landau theory taking into account the superconducting fluctuations. We derive the superconducting transition temperature which is found to decrease with increasing cooling rate in agreement with recent experimental data.
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