X-ray diffaction evidence for nonstoichiometric rubidium-c60 intercalation compounds

X-ray diffaction evidence for nonstoichiometric rubidium-c60 intercalation compounds

Powder x-ray diffraction at 300 K on equilibrated samples of several nominal compositions chi in Rb(chi)C(60) is reported. In addition to the face-centered cubic (fcc) (chi = 3, superconducting), body-centered tetragonal (chi = 4), and body-centered cubic (bcc) (chi = 6) stoichiometric phases, direc...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1991-10, Vol.254 (5031), p.545-548
Hauptverfasser: Zhu, Q, Zhou, O, Coustel, N, Vaughan, G B, McCauley, Jr, J P, Romanow, W J, Fischer, J E, Smith, 3rd, A B
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Sprache:eng
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Zusammenfassung:Powder x-ray diffraction at 300 K on equilibrated samples of several nominal compositions chi in Rb(chi)C(60) is reported. In addition to the face-centered cubic (fcc) (chi = 3, superconducting), body-centered tetragonal (chi = 4), and body-centered cubic (bcc) (chi = 6) stoichiometric phases, direct evidence for a dilute fcc doped phase, 0 x c
ISSN:0036-8075
DOI:10.1126/science.254.5031.545