Abstract
This Letter reports on NMR studies of 13C in K3 C60 above and below Tc with an applied field of 2.93 T. It is found that non-single-exponential recovery data can be fitted by two components and normalized to an identical shape. With T1 defined in this way, Fermi-liquid behavior is identified above Tc, and a broadened Hebel-Slichter peak observed below Tc is well explained by the Eliashberg theory with 2Δ(0) /kBTc=4.31. The possibility of strong electron correlation and the origin of the multi-exponential recovery are discussed.
Original language | English |
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Pages (from-to) | 1670-1673 |
Number of pages | 4 |
Journal | journal of the physical society of japan |
Volume | 63 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1994 |
Externally published | Yes |
Keywords
- BCS s-wave
- C-NMR
- Eliashberg theory
- Fermi liquid
- Hebel-Slichter peak
- KC
- constant-T T
- strong electron correlation
ASJC Scopus subject areas
- Physics and Astronomy(all)