Magnetodielectric effect in nickel nanosheet-Na-4 mica composites

Sreemanta Mitra; Amrita Mandal; Anindya Datta; Sourish Banerjee; Dipankar Chakravorty

doi:10.1209/0295-5075/92/26003

Magnetodielectric effect in nickel nanosheet-Na-4 mica composites

Mesoscale and Nanoscale Physics 2012-05-08 v1 Materials Science

Authors: Sreemanta Mitra , Amrita Mandal , Anindya Datta , Sourish Banerjee , Dipankar Chakravorty

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Abstract

Nickel nanosheets of thickness 0.6 nm were grown within the nanochannels of Na-4 mica template. The specimens show magnetodielectric effect at room temperature with a change of dielectric constant as a function of magnetic field, the electric field frequency varying from 100 to 700 kHz. A decrease of 5% in the value of dielectric constant was observed up to a field of 1.2 Tesla. This is explained by an inhomogeneous two-component composite model as theoretically proposed recently. The present approach will open up synthesis of various nanocomposites for sensor applications.

Keywords

magnetodielectric effect nickel nanosheets Na-4 mica nanocomposites dielectric constant magnetic field

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@article{arxiv.1205.1350,
  title  = {Magnetodielectric effect in nickel nanosheet-Na-4 mica composites},
  author = {Sreemanta Mitra and Amrita Mandal and Anindya Datta and Sourish Banerjee and Dipankar Chakravorty},
  journal= {arXiv preprint arXiv:1205.1350},
  year   = {2012}
}

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11 pages, 7 figures

Magnetodielectric effect in nickel nanosheet-Na-4 mica composites

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