Magnetodielectric effect in nickel nanosheet-Na-4 mica composites
  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. 
Sreemanta Mitra, Amrita Mandal, Anindya Datta, Sourish Banerjee,   Dipankar Chakravorty
cond-mat.mes-hall cond-mat.mtrl-sci