Abstract
We report on μ Hall probe measurements on single crystals of 2H–NbS2. This compound is the only superconducting 2H-dichalcogenide which does not develop a charge density wave. At low temperature and low magnetic field, a Bean profile is observed, allowing to evaluate the critical current. Moreover, the anisotropy and temperature dependence of the first critical field in 2H–NbS2 was measured down to 1.2K. A linear temperature dependence of the first penetration field is clearly observed. The absolute magnetic penetration depth is found to be 83nm which is slightly reduced compared to the iso-structural compound 2H–NbSe2.
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