Various vortex phase transitions in a weakly disordered superconductor YNi2B2C single crystal

Effect of Tb substitution for Dy on superconductivity and magnetism inDy1−xTbxNi2B2Choi1, Kim2, Kim3 et al. 2005Phys. Rev. BSelf Cite8030View full textAdd to dashboardCite

“…A family of superconductors, RNi 2 B 2 C ͑R = rare-earth element, Y, and Lu͒, 1-3 shows many interesting features, such as the coexistence of superconductivity and magnetism, 2,3 the formation of a square vortex lattice, 4,5 a large fluctuation effect, [6][7][8][9] an upward curvature of the upper critical field, 10,11 and anomalous optical properties. 12,13 While the gap symmetry of this family of compounds was thought to be that of a fully gapped s wave, this issue was revisited recently, based on studies on the field-angle-dependent specific heat 14 and thermal conductivity, 15 and an anisotropic or nodal superconducting gap was proposed.…”