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- Dokumenttyp:
- Zeitschriftenaufsatz
- Autor(en):
- Vollmer, R.; Fai\ss{}t, A.; Pfleiderer, C.; {v. L̈ohneysen}, H.; Bauer, E. D.; Ho, P.-C.; Zapf, V.; Maple, M. B.
- Titel:
- Low-{{Temperature Specific Heat}} of the {{Heavy}}-{{Fermion Superconductor}} $\mathrm{Pr}\mathrm{O}{\mathrm{s}}_{\mathrm{4}}\mathrm{S}{\mathrm{b}}_{\mathrm{12}}$
- Abstract:
- We report the magnetic field dependence of the specific-heat C of single crystals of the first Pr-based heavy-fermion superconductor Pr Os4Sb12. The variation of C at low temperature and the magnetic phase diagram inferred from C, the resistivity and magnetization provide compelling evidence of a doublet ground state. Two distinct superconducting anomalies in C indicate an unconventional superconducting state, where the splitting may arise from a weak lifting of the ground state degeneracy. In c... »
- Zeitschriftentitel:
- Physical Review Letters
- Jahr:
- 2003
- Band / Volume:
- 90
- Monat:
- feb
- Heft / Issue:
- 5
- Seitenangaben Beitrag:
- 057001
- Volltext / DOI:
- doi:10.1103/PhysRevLett.90.057001
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