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Information Journal Paper

Title

SEMICONDUCTOR-TO-METAL TRANSITION IN TRANS-POLYACETYLENE (THE ROLE OF CORRELATED SOLITONS)

Pages

  41-48

Abstract

 In this study the nature of transition to metallic regime in trans-polyacetylene (trans-PA) is investigated. Based on Su- Scbrieffer-Heeger (SSH) model and the use of Continued -Fraction Representation (CFR) as well as Lanczos algorithm procedure, we studied the effects of some selected soliton distributions on the SEMICONDUCTOR-TO-METAL TRANSITION in trans-PA. We found that: i) this transition occurs only when there exists a soliton sublattice in trans-PA, ii) disordered soliton distributions and soliton clustering are the origin of the metallic transition in trans-PA, that is consistent with the experimental data. Our results show that in the presence of correlation between solitons, the disorder in accompanying single soliton distributions plays a crucial role in inducing the transition to metallic regime, so that in contrast to Andersons localization theorem, the electronic states near the Fermi level are extended, that is the most significant criteria for the metallic regime.

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    APA: Copy

    KETABI, S.A.,. (2004). SEMICONDUCTOR-TO-METAL TRANSITION IN TRANS-POLYACETYLENE (THE ROLE OF CORRELATED SOLITONS). IRANIAN JOURNAL OF PHYSICS RESEARCH, 4(2), 41-48. SID. https://sid.ir/paper/1920/en

    Vancouver: Copy

    KETABI S.A.. SEMICONDUCTOR-TO-METAL TRANSITION IN TRANS-POLYACETYLENE (THE ROLE OF CORRELATED SOLITONS). IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2004;4(2):41-48. Available from: https://sid.ir/paper/1920/en

    IEEE: Copy

    S.A. KETABI, an, “SEMICONDUCTOR-TO-METAL TRANSITION IN TRANS-POLYACETYLENE (THE ROLE OF CORRELATED SOLITONS),” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 4, no. 2, pp. 41–48, 2004, [Online]. Available: https://sid.ir/paper/1920/en

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