Fermi-surface topology of the heavy-fermion system Ce2PtIn8

Article

关键词: MAGNETICALLY MEDIATED SUPERCONDUCTIVITY;    CRITICAL PRESSURE;    CEIN3;    CE2PDIN8;    CECOIN5;    CRYSTAL;    METALS;   

DOI  :  10.1103/PhysRevB.97.165120

来源: SCIE

【 摘 要 】

Ce2PtIn8 is a recently discovered heavy-fermion system structurally related to the well-studied superconductor CeCoIn5. Here we report on low-temperature de Haas-van Alphen-effect measurements in high magnetic fields in Ce2PtIn8 and Pr2PtIn8. In addition, we performed band-structure calculations for localized and itinerant Ce-4f electrons in Ce2PtIn8. Comparison with the experimental data of Ce2PtIn8 and of the 4f-localized Pr2PtIn8 suggests the itinerant character of the Ce-4f electrons. This conclusion is further supported by the observation of effective masses in Ce2PtIn8, which are strongly enhanced with up to 26 bare electron masses.

【 授权许可】

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