Hostname: page-component-5c6d5d7d68-wbk2r Total loading time: 0 Render date: 2024-08-20T13:12:36.344Z Has data issue: false hasContentIssue false

Vibrational and Electronic Properties of RbC60 Thin Films

Published online by Cambridge University Press:  15 February 2011

G.P. Lopinski
Affiliation:
Dept. of Physics, Penn State University, University Park, PA 16802
M.G. Mitch
Affiliation:
Dept. of Physics, Penn State University, University Park, PA 16802
J.R. Fox
Affiliation:
Dept. of Physics, Penn State University, University Park, PA 16802
J.S. Lannin
Affiliation:
Dept. of Physics, Penn State University, University Park, PA 16802
Get access

Abstract

In situ Raman scattering, UPS and HREELS measurements have been used to study the fcc to orthorhombic phase transition in RbC60 thin films. Large changes in the Raman spectra are interpreted in terms of increased interfullerene coupling in the orthorhombic phase. However, the data do not support the proposed polymer model for this phase. Photoemission measurements indicate only small differences in the electronic states between the two phases in contrast with photopolymerized C60 where additional states are observed. Low energy metallic-like excitations and screening of intramolecular vibrations are observed in HREELS.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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] Zhu, Q. et al. , Phys. Rev. B47, 2724, (1993).Google Scholar
[2] Chauvet, O. et al. , Phys. Rev. Lett. 72, 2721, (1994).Google Scholar
[3] Stephens, P.W. et al. , Nature 370, 636, (1994).Google Scholar
[4] Rao, A. M. et al. , Science 259, 955, (1993).Google Scholar
[5] Stepniak, F., Benning, P.J., Poirier, D.M., and Weaver, J.H., Phys. Rev. B48, 1899, (1993).Google Scholar
[6] Benning, P.J., Stepniak, F., and Weaver, J.H., Phys. Rev. B48, 9086, (1993).Google Scholar
[7] Winter, J. and Kuzmany, H., Solid State Commun. 84, 935, (1992).Google Scholar
[8] Mitch, M.G. and Lannin, J.S., J. Phys. Chem. Solids 54, 1801, (1993).Google Scholar
[9] Dresselhaus, G., Dresselhaus, M.S., and Eklund, P.C., Phys. Rev. B45, 6923, (1992).Google Scholar
[10] Tycko, R., Dabbagh, G., Murphy, D.W., Zhu, Q., and Fisher, J.E., Phys. Rev. B48, 9097, (1993).Google Scholar
[11] Lopinski, G.P., Mitch, M.G., Fox, J.R., and Lannin, J.S., (to be published).Google Scholar
[12] Martin, M.C., Koller, D., Du, X., Stephens, P.W., and Mihaly, L., Phys. Rev. B49, 10818, (1994).Google Scholar
[13] Pekker, S., Forro, L., Mihaly, L., and Janossy, A., Solid State Commun. 90, 349, (1994).Google Scholar
[14] Adams, G.B., Page, J.B., Sankey, O.F., and O'Keeffe, M., Phys. Rev. B, in press. Google Scholar
[15] Itchkawitz, B.S., Schedel-Niedrig, T., Bradshaw, A.M., and Kabler, M.N., Bull. Am. Phys. Soc. 39, 681, (1994).Google Scholar
[16] Satpathy, S. et al. , Phys. Rev., B46, 1773, (1992).Google Scholar
[17] Yildirim, T., Fischer, J.E., Dinnebier, R., Stephens, P.W., and Lin, C.L., (to be published).Google Scholar
[18] Lopinski, G.P., Mitch, M.G., Chase, S.J., and Lannin, J.S., MRS Proceedings, this volume. Google Scholar
[19] Sohmen, E. and Fink, J., Phys. Rev. B47, 14532, (1993).Google Scholar
[20] Erwin, S.C., Krishna, G.V., and Mele, E.J., (to be published).Google Scholar
[21] Lopinski, G.P., Fox, J.R., and Lannin, J.S., (to be published).Google Scholar