Coexistence of charge density wave and superconductivity in Cu0.10TiSe2

Abstract

We report the synthesis and characterization of Cu intercalated TiSe2 superconductor. The resistivity variation with temperature indicates superconducting transition onset at 3.1K and resistivity drops down to zero at 2.1K. The magnetization measurement provides the diamagnetic transition at 3 K. The upper critical field Hc2, lower critical field Hc1, Ginzburg Landau coherence length (ξ) and penetration depth(λ) are estimated to be 0.93 T, 0.01T, 18.8 nm and 181.5 nm respectively. At 100K, CDW type feature is observed. The coexistence of CDW phase and superconductivity is summarized.