Anisotropic Superconducting Properties of NbSe2

Low temperature NbSe2 has a layer structure of the NbS2 type. It is superconducting with a zero field transition temperature of about 6.0°K. Critical current measurements were made on single crystals at 4.20°K in fields up to 7250 gauss. The variation in critical current as a function of orientation in a constant applied magnetic field is interpreted in terms of demagnetization at low fields and structural anisotropy at high fields.