Abstract
Advances in the synthesis of organic conducting polymer systems has increased the electrical conductivity of these systems by several orders of magnitude in the last decade. Several practical applications are envisioned for such systems, but a thorough understanding of the conduction mechanisms and identification of the charge carriers is lacking, making design and implementation for bulk synthesis difficult. In order to clarify our understanding of the electrical properties of these systems, the resistivity and magnetoresistivity of various polymers doped near the metal - insulator transition, such as polyaniline protonated by camphor sulfonic acid (PANi-CSA) and polypyrrole doped with PF6 (PPy-PF6), have been studied down to 25 mK in magnetic fields up to 16 T.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Reghu Menon, C.O. Yoon, D. Moses, A.J. Heeger, and Y. Cao,Phys. Rev. B 48, 17685 (1993).
J. Tsukamoto,Adv. Phys. 41, 509 (1992).
J. C. Clark, G.G. Ihas, A.J. Rafanello, M.W. Meisel, Reghu M., C.O. Yoon, Y. Cao, and A.J. Heeger,Journ. Synth. Metals 69, 215 (1995).
J.I. Kroschwitz,Concise Encyclopedia of Polymer Science and Engineering, (John Wiley and Sons: New York, New York, 1990).
Mouser Electronics #506 616 DG5, Mansfield, TX 76063-4827.
James G. Biddle Co., Plymouth Meeting, PA.
SPI Supplies #5006-AB, West Chester, PA 19381-0656.
Emerson and Cuming, Canton, MA 02021.
B.N. Engel, G.G. Ihas, E.D. Adams, and C. Fombarlet,Rev. Sci. Instrum. 55, 1489 (1984).