Retraction to: J Supercond Nov Magn (2012) 25:1921–1927
DOI 10.1007/s10948-012-1513-5
Because of scientific errors, Prasad, A.S., Dolia, S.N., Dhawan, M.S., Kumar, S., Reddy, V.R.: Synthesis, Structural and Magnetic Properties of Polypyrrole Coated Ni0.2Ca0.8Fe2O4 Nanocomposite. Journal of Superconductivity and Novel Magnetism 25, 1921–1927 (2012). doi: 10.1007/s10948-012-1513-5 has been retracted at the request of the authors. The paper was previously corrected with an Erratum: Prasad, A.S., Dolia, S.N., Dhawan, M.S., Kumar, S., Reddy, V.R.: Erratum to: Synthesis, Structural and Magnetic Properties of Polypyrrole Coated Ni0.2Ca0.8Fe2O4 Nanocomposite. Journal of Superconductivity and Novel Magnetism 26, 2985 (2013). doi: 10.1007/s10948-013-2314-1.
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The online version of the original article can be found at http://dx.doi.org/10.1007/s10948-012-1513-5.
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Prasad, A.S., Dolia, S.N., Dhawan, M.S. et al. Retraction Note to: Synthesis, Structural and Magnetic Properties of Polypyrrole Coated Ni0.2Ca0.8Fe2O4 Nanocomposite. J Supercond Nov Magn 28, 1425 (2015). https://doi.org/10.1007/s10948-015-2952-6
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DOI: https://doi.org/10.1007/s10948-015-2952-6