Hostname: page-component-76fb5796d-45l2p Total loading time: 0 Render date: 2024-04-25T15:42:19.768Z Has data issue: false hasContentIssue false
  • English
  • Français

Disorder in Staging of Potassium Graphite: Fractional Stage 3/2 and STAGE 7

Published online by Cambridge University Press:  15 February 2011

C.D. Fuerst ,
T.C. Koch ,
J.E. Fischer ,
J.D. Axe ,
J.B. Hastings  and
D.B. McWhan
C.D. Fuerst
Affiliation:
Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
T.C. Koch
Affiliation:
Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
J.E. Fischer
Affiliation:
Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
J.D. Axe
Affiliation:
Brookhaven National Laboratory, Upton, New York 11973, USA
J.B. Hastings
Affiliation:
Brookhaven National Laboratory, Upton, New York 11973, USA
D.B. McWhan
Affiliation:
Bell Laboratories, Murray Hill, New Jersey 07974, USA
Get access

Abstract

At high pressure KC8 undergoes a staging transition to a mixture of stages 1 and 3/2 at 15 kbar and stages 1 and 2 at 19 kbar. The width of the new peaks are not resolution limited but show a pronounced and non-monotonic variation with Q. This broadening is the result of a finite concentration of staging defects which can be simply modeled by stochastic disordering of an appropriately chosen two component layer sequence. This same analysis has also been used to explain deviations from the Bragg locations in KC84.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 20: Symposium H – Intercalated Graphite , 1982 , 39
Copyright
Copyright © Materials Research Society 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Hendricks, S. Teller, E., J. Chem. Phys. 10, 147 (1942).Google Scholar
2. Kakinoki, J. Komura, Y., Acta Cryst. 19, 137 (1965).Google Scholar
3. Johnston, D.C. Frysinger, S.P., unpublished.Google Scholar
4. Fuerst, C.D. Fischer, J.E. Axe, J.D. Hastings, J.B. McWhan, D.B., unpublished.Google Scholar
5. Solin, S.A., Adv. Chem. Phys. 49, 455 (1982).Google Scholar
6. Leung, S.Y. Dresselhaus, M.S. Underhill, C. Krapchev, T. Dresselhaus, G., and Wuensch, B.J., Phys Rev B 24, 3505 (1981).Google Scholar