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151Eu Mössbauer Studies on Graphite-EuC13

  • P. Boolchand (a1), G. Lemon (a1), W. Bresser (a1), D. Mcdaniel (a1), R.E. Heinz (a2), P.C. Eklund (a2), E. Stumpp (a3) and G. Nietfeld (a3)...

Abstract

151Eu Mössbauer experiments on EuC13-Alcl3 graphite flakes and HOPG samples have been performed as a function of temperature in the range 4.2K < T < 300K and indicate the presence of a narrow line characteristic of Eu3+. No evidence of Eu2+ was found. This suggests that enhanced conductivity of graphite upon intercalation with rare earth chlorides derives from a transfer of charge to the co-intercalated Cl.

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References

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1. Selig, H. and Ebert, L.B. Adv.Inorg. Radiochem. 23, 281 (1980);
1a Stumpp, E. Mat. Sci. Eng. 31, 53 (1977).
2. Millman, G.E., Corson, M.R., Hoy, G.R.,Phys. Rev. B25, 6595 (1982).
3. Boolchand, P., Bresser, W.J., McDaniel, D., Sisson, K., Yeh, V. and Eklund, P.C. Solid State Comm. 40, 1049 (1981).
4. Stumpp, E. and Nietfeld, G., Anorg, Z.. Allg. Chem. 456, 261 (1979).
5. Barton, Chris M.P. and Greenwood, N.N., Mössbauer Effect Data Index, Ed. Stevens, V.E. and Stevens, J.E., Covering 1973 Literature p. 395, Plenum, NY.
6. Sisson, K.J. and Boolchand, P., J. Nucl. Instr. and Methods 148, 317 (1982).
7. Private Communication from Fischer, J.E..
8. Murthy, V.R.K., Smith, D.S. and Eklund, P.C., Mat. Sci. Eng. 45, 77 (1980).
9. Wertheim, G.K., Th., P.M. van Attenkum, M., Guggenheim, H.J. and Clements, K.E., Sol. St. Comm. 33, 809 (1980).
10. Feldhaus, J., Frank, K.H., Kaindl, G. and Perscheid, B.Abstract in International Conference on the Applications of Mössbauer effect Jaipur, India December 1981.

151Eu Mössbauer Studies on Graphite-EuC13

  • P. Boolchand (a1), G. Lemon (a1), W. Bresser (a1), D. Mcdaniel (a1), R.E. Heinz (a2), P.C. Eklund (a2), E. Stumpp (a3) and G. Nietfeld (a3)...

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