Abstract
Discovery of a quaternary superconducting system Y-Ni-B-C has been reported recently. Our structural studies on C (≊15.5 K) reveal large and anisotropic thermal vibrations of C atoms in the Y-C plane of the structure. No crystallographic phase transition is observed down to 50 K. Our specific-heat data suggest that C is a strong-coupling superconductor. Results of our resistivity, magnetic, and specific-heat data clearly suggest coexistence of superconductivity and magnetism (of Er spins) in C (≊10.5 K) below ≊7 K.
- Received 9 May 1994
DOI:https://doi.org/10.1103/PhysRevB.51.489
©1995 American Physical Society