The Structure of Ternary Alkali Graphite Intercalation Compounds

  • P. C. Chow
  • H. Zabel
Part of the NATO ASI Series book series (NSSB, volume 148)


We have studied the structure of RbxK1−x C8 with x-rays. The major motivation of the work is to investigate the correlation in the positions of the alkali metal atoms in between the carbon layers. This is interesting because anomalies in the physical properties (magnetic susceptibility1, Raman-active M-point phonon frequency2, and elastic constant C 33 3 ) have been measured for x=0.67. Two different explanations have been proposed to account for these anomalies. Solin2 postulated that short range order of the alkali metal atoms can account for the Raman data. Akera4 argues that the Van Hove singularity in the density of states at the Fermi level gives rise to the anomalies in the data. X-ray evidence for short range order will help distinguish between the two models.


Alkali Metal Short Range Order Carbon Layer Diffuse Scattering Highly Orient Pyrolytic Graphite 
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  1. 1.
    G. Furdin, B. Carbon, A. Herold and C. Zeller: C. R. Acad. Sc. Paris, Ser. B. 280, 653 (1975)Google Scholar
  2. 2.
    S. A. Solin, P. Chow, and H. Zabel, Phys. Rev. Lett. 53 1927 (1984)CrossRefGoogle Scholar
  3. 3.
    D. A. Neuman, H. Zabel, J. J. Rush, and N. Berker, Phys. Rev. Lett. 53 56 (1984)CrossRefGoogle Scholar
  4. 4.
    H. Akera and H. Kamimura, Syn. Metal 12 275 (1985)CrossRefGoogle Scholar
  5. 5.
    P. C. Chow and H. Zabel, Syn. Metals 7, 243 (1983)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1986

Authors and Affiliations

  • P. C. Chow
    • 1
  • H. Zabel
    • 1
  1. 1.Loomis Lab of PhysicsUniversity of IllinoisUrbanaUSA

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