Resonant photoemission studies of the heavy-fermion superconductors CeCu/sub 2/Si/sub 2/, UBe/sub 13/, and UPt/sub 3/

Journal Article · Wed Aug 01 00:00:00 EDT 1984 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.30.1580· OSTI ID:6468514

Parks, R D; denBoer, M L; Raaen, S; Smith, J L; Williams, G P

Valence-band photoemission studies, using synchrotron light and employing Fano resonances to enhance f-derived features, were made of the three known heavy-fermion superconductors: CeCu/sub 2/Si/sub 2/, UBe/sub 13/, and UPt/sub 3/. The results for CeCu/sub 2/Si/sub 2/ and UBe/sub 13/ contrast markedly with those reported earlier, reflecting closer control of surface contamination in the present study. We infer from the present study and other considerations that in all three systems there is sig- nificant hybridization between the f electrons and the nearest-neighbor ligands, which may be essential to the phenomenon of heavy-fermion superconductivity.

• Research Organization: Department of Physics, Polytechnic Institute of New York, Brooklyn, New York 11201
• OSTI ID: 6468514
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 30:3
• Country of Publication: United States
• Language: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
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CERIUM ALLOYS
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