TY - JOUR
T1 - NMR hyperfine couplings, anisotropy, and Korringa relations inC
T2 - Search for effects of strong correlation
AU - Pennington, C.
AU - Stenger, V.
AU - Recchia, C.
AU - Hahm, C.
AU - Gorny, K.
AU - Nandor, V.
AU - Buffinger, D.
AU - Lee, S.
AU - Ziebarth, R.
PY - 1996
Y1 - 1996
N2 - Initial considerations lead one to suspect that effects of strong correlation might be present in the alkali fulleride superconductors. We report direct measurements of (Formula presented) anisotropy at 80 K in (Formula presented)Cs(Formula presented) and compare, in the context of the Korringa relation, the inferred spin-dipolar contribution to (Formula presented) with the widths of the measured powder pattern line shape. The results demonstrate that the Korringa relation, valid in the limit of noninteracting electrons, holds in this case. Taken together with other normal-state NMR behavior this result makes important effects of strong correlation appear unlikely.
AB - Initial considerations lead one to suspect that effects of strong correlation might be present in the alkali fulleride superconductors. We report direct measurements of (Formula presented) anisotropy at 80 K in (Formula presented)Cs(Formula presented) and compare, in the context of the Korringa relation, the inferred spin-dipolar contribution to (Formula presented) with the widths of the measured powder pattern line shape. The results demonstrate that the Korringa relation, valid in the limit of noninteracting electrons, holds in this case. Taken together with other normal-state NMR behavior this result makes important effects of strong correlation appear unlikely.
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U2 - 10.1103/PhysRevB.53.R2967
DO - 10.1103/PhysRevB.53.R2967
M3 - Article
AN - SCOPUS:0007287647
SN - 1098-0121
VL - 53
SP - R2967-R2970
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 6
ER -