Thermal Conductivity of superconducting (TMTSF)₂ClO₄: evidence for a nodeless gap
classification
❄️ cond-mat.supr-con
cond-mat.str-el
keywords
superconductingconductivityelectronicevidencenodelessthermaltmtsfabsence
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We report on the first measurements of thermal conductivity in the superconducting state of (TMTSF)_2ClO_4. The electronic contribution to heat transport is found to decrease rapidly below T_c, indicating the absence of low-energy electronic excitations. We argue that this result provides strong evidence for a nodeless superconducting gap function but does not exclude a possible unconventional order parameter.
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