Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-19T04:05:43.420Z Has data issue: false hasContentIssue false
  • English
  • Français

Insulator-Metal Transition and Conduction Processes in Trans-Polyacetylene

Published online by Cambridge University Press:  25 February 2011

Esther M. Conwell ,
Howard A Mizes  and
Surendar Jeyadev
Esther M. Conwell
Affiliation:
Xerox Webster Research Center, Webster, NY 14580
Howard A Mizes
Affiliation:
Xerox Webster Research Center, Webster, NY 14580
Surendar Jeyadev
Affiliation:
Xerox Webster Research Center, Webster, NY 14580
Get access

Abstract

We show by calculations for a chain of stage-1 (16.7%) potassium-doped (CH)x that the metallic state is obtained by adding to the Su-Schrieffer-Heeger Hamiltonian the Coulomb potential of the doping ions and solitons on other chains. Good agreement with the measured Pauli susceptibility is obtained. Adding interchain coupling is found to lead to essentially the same density of states.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 409
Copyright
Copyright © Materials Research Society 1990

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. Moraes, F., Chen, J., Chung, T.-C. and Heeger, A.J., Synth. Met. 11, 271 (1985).Google Scholar
2. See, for example, Schimmel, Th., Denninger, G., Riess, W., Voit, J., Schwoerer, M., Schoepe, W. and Naarmann, H., Synth. Met. 28, D11 (1989).Google Scholar
3. Sheng, P., Phys. Rev. B21, 2180 (1980).CrossRefGoogle Scholar
4. This behavior has been found for 12–14% K-doping by Ghanbaja, J., Mâreché, J.F., McRae, E. and Billund, D., Solid State Commun. 60, 87 (1986) andGoogle Scholar
Park, Y. W., Park, C., Lee, Y.S., Yoon, C.O., Shirakawa, H., Suezaki, Y. and Akagi, K., Solid State Commun. 65, 147 (1986). It has also been found for doping by AsF5, Fe Cl3,I and Sn Cl5.Google Scholar
5. Mele, E.J. and Rice, M.J., Phys, Rev. B 23, 5397 (1981).Google Scholar
6. Baughman, R.H., Shacklette, L.W., Murthy, N.S., Miller, G.G. and Elsenbaumer, R.L., Mol. Cryst. Liq. Cryst. 118, 253 (1985) and references therein.CrossRefGoogle Scholar
7. Kivelson, S. and Heeger, A.J., Phys. Rev. Lett. 55, 308 (1985).CrossRefGoogle Scholar
8. Stafström, S. and Brédas, J.-L., Phys. Rev. B 38, 4180 (1988).Google Scholar
9. Choi, H.-Y. and Mele, E.J., Phys. Rev. B 34, 8750 (1986).Google Scholar
10. Lögdlund, M., Lazzaroni, R., Stafström, S., Salaneck, W.R. and Brédas, J.-L., Phys. Rev. Lett. 63, 1841 (1989).Google Scholar
11. Tanner, D.B.. Doll, G.L., Rao, A.M., Eklund, P.C., Arbuckle, G.A. and MacDiarmid, A.G., Synth. Met. 28, D141 (1989).Google Scholar
12. Conwell, E. and Jeyadev, S., Phys. Rev. Lett. 61, 361 (1988).Google Scholar
13. Conwell, E.M., Mizes, H.A. and Jeyadev, S., Phys. Rev. B 40, 1630 (1989).Google Scholar
14. Su, W.P., Schrieffer, J.R. and Heeger, A.J., Phys. Rev. B 22, 2099 (1980).Google Scholar
15. Djurado, D., Ma, J., Theophilou, N. and Fischer, J.E., Synth. Met. 30, 395 (1989).Google Scholar
16. Moses, D., Feldblum, A., Ehrenfreund, E., Heeger, A.J., Chung, T.-C. and MacDiarmid, A.G., Phys. Rev. B 26, 3361 (1982).Google Scholar
17. Harrison, W.A., Electronic Structure and the Properties of Solids (W.H. Freeman and Co., San Francisco, 1980).Google Scholar
18. Slater, J.C. and Koster, G.F., Phys. Rev. 94, 1498 (1954).Google Scholar
19. Harrison, W.A., Phys. Rev. B 31, 2121 (1985).Google Scholar