Anisotropy and temperature dependence of the first critical field in 2H-NbS2

作者：Leroux M^*; Rodiere P; Cario L; Klein T

来源：Physica B: Condensed Matter , 2012, 407(11): 1813-1815.

DOI：10.1016/j.physb.2012.01.037

• Dichalcogenide
• Superconductivity
• CDW
• First critical field

We report on mu 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 1.2 K. A linear temperature dependence of the first penetration field is clearly observed. The absolute magnetic penetration depth is found to be 83 nm which is slightly reduced compared to the iso-structural compound 2H-NbSe2.

• 出版日期2012-6-1