Exchange coupling and magnetic anisotropy for different concentration of iron based nanoparticles in aligned carbon nanotube arrays

Laboratory of Engineering, Informatics and Imagery (ICube), Department Electronique des Solides, des Syst´ `emes et de Photonique(DESSP), Universit´e de Strasbourg and CNRS, Bat. 28, 23 Rue du Loess, BP 20 CR, 67037 Strasbourg Cedex 2, FranceReceived 24 October 2013, revised 17 January 2014, accepted 3 February 2014Published onlineKeywords magnetic nanocomposite, carbon nanotube, exchange coupling, magnetic anisotropy, magnetic nanoparticle