Superconductivity and spin fluctuations in doped CeIr5
摘要:
We report a detailed investigation of the binary compound CeIr5. Owing to difficulty in being able to prepare single-phase CeIr5, we studied the low-temperature properties of CeIr5 by investigating the doping-stabilized CeIr5 systems (Th1-xCex)Ir-5, x less than or equal to 0.7, and Ce(Pt1-xIrx), x less than or equal to 0.85. Via measurements of the specific heat and magnetic susceptibility, we observed spin fluctuations in the Ce(Pt1-xIrx)(5) system, arising from a Pauli paramagnetic state, and superconductivity in (Th1-xCex)Ir-5.