| Issue |
EPL
Volume 92, Number 2, October 2010
|
|
|---|---|---|
| Article Number | 26003 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/92/26003 | |
| Published online | 17 November 2010 | |
Magnetodielectric effect in nickel nanosheet-Na-4 mica composites
1
DST Unit on Nano Science, Indian Association for The Cultivation Of Science - Jadavpur, Kolkata-700032, India
2
Department of Physics, University of Calcutta - Kolkata-700009, India.
3
Centre for Nanotechnology for Photovoltaics and Sensor Devices, Indian Association for the Cultivation of Science Kolkata-700032, India
Received:
26
August
2010
Accepted:
8
October
2010
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 the dielectric constant was observed up to a field of 1.2 T. 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.
PACS: 62.23.Pq – Composites (nanosystems embedded in a larger structure) / 72.20.My – Galvanomagnetic and other magnetotransport effects / 81.07.Bc – Nanocrystalline materials
© EPLA, 2010
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