Specific Heat Study of Superconductivity in Cu_{0.061}TiSe_{2}

• Authors: J. Kačmarčík , Z. Pribulová , V. Pal'uchová , P. Husaníková , G. Karapetrov , V. Komanický , P. Samuely
• Languages of publication: EN

Abstracts

EN

In TiSe_{2} a charge-density-waves order is continuously suppressed by copper doping and superconductivity appears. We report a calorimetric study performed on the superconducting single crystal of Cu_{0.061}TiSe_{2} with T_{c}=2.8 K, measured by the ac technique at low temperatures down to 0.6 K and magnetic fields up to 2 T. Sharp specific heat anomaly at the superconducting transition is found. The temperature dependence of the electronic specific heat and the angular dependence of the critical temperature, measured at a fixed magnetic field, consistently indicate on the existence of a single s-wave superconducting gap with a coupling strength of 2Δ/k_{B}T_{c}=3.6, close to BCS limit.

Keywords

EN

72.80.Ga   74.25.Bt   71.45.Lr  

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 322-323

Dates

published

2014-07

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Identifiers

DOI

10.12693/APhysPolA.126.322