Isotropy in ^<13>C Hyperfine Coupling in K_3C_<60>
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概要
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We report on a study of carbon thirteen ("C) NMR spectra in a superconducting fullerideK3 Cog. It is found that the spectra are reprodtrced as poxvder patterns of anxsotropuc NMR shufts.By analyzing the NMR shifts, the ratio of isotropic hyperfine coupling (A7.f.)") of conductionelectrons to anisotropic one (A:';") is obtained experimentally for the first time (A7.f.)" /A:" =0.78). The substantial isotropy is consistent with the crystal structure of the Cog molecule. Thecontribvution of carbon pm-orbitals to A:" is found to be dominant.
- 社団法人日本物理学会の論文
- 1996-08-15
著者
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Matsuda Azusa
Ntt Basic Research Laboratories
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Sasaki Susumu
NTT Basic Research Laboratories
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Chu C.W.
Department of Physics and Texas Center for Superconductivity,University of Houston
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Chu C.W.
Department of Physics and Texas Center for Superconductivity,University of Hauston
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