39K-NMR observation of temperature-dependent spin susceptibility in K3C60

Susumu Sasaki*, Azusa Matsuda, C. W. Chu

*この研究の対応する著者

研究成果査読

8 被引用数 (Scopus)

抄録

39K-NMR spectra of superconducting fulleride K3C60 are obtained in the normal state. The 39K-NMR shifts of two symmetrical lines observed with no quadrupolar-split satellites, that are assigned to the potassium tetrahedral- and octahedral-sites, are found to show the same temperature (T) dependence as the 13C-NMR shifts. From roughly estimated spin-lattice relaxation time, it is found that the conduction-electron density at the potassium site is nearly the same as that at the carbon site. These confirm that the uniform Pauli spin susceptibility, whose T dependence is considered to come from the predicted band effect, causes the reductions of both the 13C- and 39K-NMR shifts with decreasing T. Two experimental facts are pointed out for the T′ site observed.

本文言語English
ページ(範囲)319-324
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
302
4
DOI
出版ステータスPublished - 1998 7 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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