Crystal-field and Kondo-scale investigations of CeMIn5 (M=Co, Ir, and Rh): A combined x-ray absorption and inelastic neutron scattering study

Article

关键词: MAGNETIC EXCITATIONS;    SUPERCONDUCTIVITY;    CEPD2SI2;    CEAU2SI2;    CERHIN5;    CEIRIN5;    SPIN;   

DOI  :  10.1103/PhysRevB.81.195114

来源: SCIE

【 摘 要 】

Linear-polarized soft-x-ray absorption (XAS) and inelastic neutron scattering (INS) experiments have been performed on CeMIn5 with M=Rh, Ir, and Co to determine the crystal-field scheme and characteristic Kondo temperatures T* for the hybridization between 4f and conduction electrons. The ground-state wave functions are determined from the polarization-dependent soft-XAS data at the cerium M-4,M-5 edge and the crystal-field splittings from INS. The characteristic temperature T* has been determined from the line widths of the neutron scattering data. We find that the quasielastic linewidths of the superconducting compounds CeCoIn5 and CeIrIn5 are comparable with the low-energy crystal-field splitting.

【 授权许可】

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