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)


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.


Electron Spin Resonance PANI PMMA Synthetic Metal Keithley Model 
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  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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