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ESR studies of K-doped C60

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

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
357 KB
Volume
203
Category
Article
ISSN
0009-2614

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✦ Synopsis

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

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