TY - JOUR
T1 - Fermi-Liquid Behavior and BCS s-Wave Pairing of K3C60 Observed by 13C-NMR
AU - Sasaki, Susumu
AU - Matsuda, Azusa
AU - Chu, C. W.
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1994
Y1 - 1994
N2 - 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.
AB - 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.
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U2 - 10.1143/JPSJ.63.1670
DO - 10.1143/JPSJ.63.1670
M3 - Article
AN - SCOPUS:21344478738
SN - 0031-9015
VL - 63
SP - 1670
EP - 1673
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 5
ER -