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Doping-dependent studies of the Anderson-Mott localization in polyaniline at the metal-insulator boundary

Tzamalis, G.; Zaidi, N.A.; Homes, C.C.; Monkman, A.P.

Doping-dependent studies of the Anderson-Mott localization in polyaniline at the metal-insulator boundary Thumbnail


Authors

G. Tzamalis

N.A. Zaidi

C.C. Homes

A.P. Monkman



Abstract

Temperature-dependent dc conductivity measurements and infrared reflectivity measurements (20–9000 cm−1) were performed on a series of polyaniline samples with two different dopant acids at various doping levels. The typical fingerprints of a disordered metal such as a positive temperature coefficient of resistivity at high temperatures, a very high reflectivity in the far infrared, and a plasma resonance have been observed. The results were analyzed in the framework of the Anderson-Mott localization model and considerable consistency between transport studies and optical measurements was obtained. Various parameters enabling a comparative classification of the materials are also reported.

Citation

Tzamalis, G., Zaidi, N., Homes, C., & Monkman, A. (2002). Doping-dependent studies of the Anderson-Mott localization in polyaniline at the metal-insulator boundary. Physical review B, 66(8), Article 085202. https://doi.org/10.1103/physrevb.66.085202

Journal Article Type Article
Publication Date Aug 5, 2002
Deposit Date Jul 30, 2015
Publicly Available Date Jul 31, 2015
Journal Physical Review B
Print ISSN 1098-0121
Electronic ISSN 1550-235X
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 66
Issue 8
Article Number 085202
DOI https://doi.org/10.1103/physrevb.66.085202
Related Public URLs http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002PhRvB..66h5202T&db_key=PHY

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Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review B 66, 085202 © 2002 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.




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