Magnetodielectric effect in nickel nanosheet-Na-4 mica composites Sreemanta Mitra, Amrita Mandal, Anindya Datta, Sourish Banerjee and Dipankar Chakravorty EPL, 92 2 (2010) 26003 Published online: 17 November 2010 DOI: 10.1209/0295-5075/92/26003