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Czechoslovak Journal of Physics

, Volume 46, Supplement 4, pp 2035–2036 | Cite as

Electrical conductivity and magneto-resistance studies on polyaniline-PMMA blends at very low temperature

  • D. Srinivasan
  • Anasuya Raghunathan
  • T. S. Natarajan
  • G. Rangarajan
  • C. K. Subramaniam
  • B. Wessling
Magnetism (Experiment)

Abstract

D.C. electrical conductivity of polyaniline(33%,40%) blended with PMMA was measured from 5K to 300mK. The conductivity behaviour is consistent with fluctuation induced tunneling. Magneto-resistance (MR) was measured between 300K and 2K. From 20K to 2K, a large positive MR was observed. At 2K, for low magnetic fields (<1 Tesla), a deviation from the normal H2 behaviour was observed.

Keywords

Electron Spin Resonance PANI PMMA Synthetic Metal Keithley Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. [1]
    Reghu Menon, C.O. Yoon, D. Moses and A.J. Heeger. To be published in the 2nd edition of Hand book of Conducting Polymers.Google Scholar
  2. [2]
    M. Reghu, C.O. Yoon, C.Y. Yang, D. Moses, Paul Smith, A.J. Heeger & Y. Cao, Phys. Rev. B,50, 13931 (1994).CrossRefADSGoogle Scholar
  3. [3]
    A.B. Kaiser, C.K. Subramaniam, P.W. Gilberd & B. Wessling, Synthetic metals,69, 197 (1995).CrossRefGoogle Scholar
  4. [4]
    Ping Sheng, Phys. Rev. B,21, 2180 (1980).CrossRefADSGoogle Scholar
  5. [5]
    A.B. Kaiser & S.C. Graham, Synthetic metals,36, 367, (1990).CrossRefGoogle Scholar
  6. [6]
    G. Paasch, Synthetic metals,51, 7 (1992).CrossRefGoogle Scholar
  7. [7]
    R. Pelster, G. Nimtz & B. Wessling, Phys. Rev. B,49, 12718 (1994).CrossRefADSGoogle Scholar

Copyright information

© Institute of Physics, Acad. Sci. CR 1996

Authors and Affiliations

  • D. Srinivasan
    • 1
  • Anasuya Raghunathan
    • 4
  • T. S. Natarajan
    • 1
  • G. Rangarajan
    • 1
  • C. K. Subramaniam
    • 2
  • B. Wessling
    • 3
  1. 1.Department of PhysicsIndian Institute of TechnologyMadras
  2. 2.Center for Electrochemical and Energy researchSPIC Science FoundationMadras
  3. 3.Zipperling Kessler & Co.AhrensburgGermany
  4. 4.Department of PhysicsIndian Institute of ScienceBangalore

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