ESR studies of K-doped C60

M. Kosaka; K. Tanigaki; I. Hirosawa; Y. Shimakawa; S. Kuroshima; T. W. Ebbesen; J. Mizuki; Y. Kubo

doi:10.1016/0009-2614(93)85593-D

ESR studies of K-doped C₆₀

M. Kosaka, K. Tanigaki, I. Hirosawa, Y. Shimakawa, S. Kuroshima, T. W. Ebbesen, J. Mizuki, Y. Kubo

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Precise electron spin resonance (ESR) spectroscopic studies have been done for K_xC₆₀. Three ESR peaks corresponding to the three important crystal phases of K_xC₆₀ (face-centered cubic K₃C₆₀, body-centered tetragonal K₄C₆₀, and body-centered cubic K₆C₆₀) are reported. From the temperature dependencies of the ESR intensity for these three phases, it is confirmed that the superconducting K₃C₆₀ phase is metallic, and that both of the non-superconducting K₄C₆₀ and K₆C₆₀ phases are semiconducting or insulating. The electronic properties of K_xC₆₀ are discussed in comparison with those of Rb_xC₆₀ and K_xC₇₀.

Original language	English
Pages (from-to)	429-432
Number of pages	4
Journal	Chemical Physics Letters
Volume	203
Issue number	4
DOIs	https://doi.org/10.1016/0009-2614(93)85593-D
Publication status	Published - 1993 Feb 26
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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title = "ESR studies of K-doped C60",

abstract = "Precise electron spin resonance (ESR) spectroscopic studies have been done for KxC60. Three ESR peaks corresponding to the three important crystal phases of KxC60 (face-centered cubic K3C60, body-centered tetragonal K4C60, and body-centered cubic K6C60) are reported. From the temperature dependencies of the ESR intensity for these three phases, it is confirmed that the superconducting K3C60 phase is metallic, and that both of the non-superconducting K4C60 and K6C60 phases are semiconducting or insulating. The electronic properties of KxC60 are discussed in comparison with those of RbxC60 and KxC70.",

author = "M. Kosaka and K. Tanigaki and I. Hirosawa and Y. Shimakawa and S. Kuroshima and Ebbesen, {T. W.} and J. Mizuki and Y. Kubo",

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T1 - ESR studies of K-doped C60

AU - Kosaka, M.

AU - Tanigaki, K.

AU - Hirosawa, I.

AU - Shimakawa, Y.

AU - Kuroshima, S.

AU - Ebbesen, T. W.

AU - Mizuki, J.

AU - Kubo, Y.

PY - 1993/2/26

Y1 - 1993/2/26

N2 - Precise electron spin resonance (ESR) spectroscopic studies have been done for KxC60. Three ESR peaks corresponding to the three important crystal phases of KxC60 (face-centered cubic K3C60, body-centered tetragonal K4C60, and body-centered cubic K6C60) are reported. From the temperature dependencies of the ESR intensity for these three phases, it is confirmed that the superconducting K3C60 phase is metallic, and that both of the non-superconducting K4C60 and K6C60 phases are semiconducting or insulating. The electronic properties of KxC60 are discussed in comparison with those of RbxC60 and KxC70.

AB - Precise electron spin resonance (ESR) spectroscopic studies have been done for KxC60. Three ESR peaks corresponding to the three important crystal phases of KxC60 (face-centered cubic K3C60, body-centered tetragonal K4C60, and body-centered cubic K6C60) are reported. From the temperature dependencies of the ESR intensity for these three phases, it is confirmed that the superconducting K3C60 phase is metallic, and that both of the non-superconducting K4C60 and K6C60 phases are semiconducting or insulating. The electronic properties of KxC60 are discussed in comparison with those of RbxC60 and KxC70.

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ESR studies of K-doped C₆₀

Abstract

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