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A polymer-inorganic composite material based on gadolinium, barium, and manganese compounds; elemental sulfur; and polyaniline with a giant magnetoresistance effect

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Abstract

The effect of a constant magnetic field up to 6000 Oe on transient current after application of a pulsed voltage of U = 5 V with a duration of 100 μs is studied for composites based on polyaniline, manganese acetylacetonate, barium oxide hexahydrate, gadolinium chloride, and elemental sulfur. Initial powders are mixed in a ball mill. The giant magnetoresistance with a magnitude of 40–60% is discovered. It manifests itself as a difference in transient-current curves in the absence of the magnetic field and in its presence. This effect is explained by spin-dependent transport, in which at least two charge assemblies are involved: namely, electron assemblies and proton assemblies.

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Authors and Affiliations

  1. Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Profsoyuznaya ul. 70, Moscow, 117393, Russia

    I. A. Aleksandrov, V. G. Shevchenko & A. I. Aleksandrov

  2. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russia

    S. S. Abramchuk & S. P. Solodovnikov

  3. Faculty of Chemistry, Moscow State University, Moscow, 119991, Russia

    S. B. Zezin

Authors
  1. I. A. Aleksandrov
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  2. S. S. Abramchuk
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  3. S. P. Solodovnikov
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  4. S. B. Zezin
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  5. V. G. Shevchenko
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  6. A. I. Aleksandrov
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Corresponding author

Correspondence to V. G. Shevchenko.

Additional information

Original Russian Text © I.A. Aleksandrov, S.S. Abramchuk, S.P. Solodovnikov, S.B. Zezin, V. G. Shevchenko, A.I. Aleksandrov, 2012, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2012, Vol. 54, No. 5, pp. 768–774.

This work was supported by the Russian Foundation for Basic Research, project no. 09-03-00758a.

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Aleksandrov, I.A., Abramchuk, S.S., Solodovnikov, S.P. et al. A polymer-inorganic composite material based on gadolinium, barium, and manganese compounds; elemental sulfur; and polyaniline with a giant magnetoresistance effect. Polym. Sci. Ser. A 54, 407–413 (2012). https://doi.org/10.1134/S0965545X1205001X

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  • DOI: https://doi.org/10.1134/S0965545X1205001X

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