Preparation and Magnetic Properties of Fe[sub 3]O[sub 4] Nanostructures Grown by Electrodeposition

Abstract

We report the preparation and magnetic properties of magnetite nanostructures grown by electrodeposition in the form of (i) nanocrystalline film (200 nm thick) and nanocylinders (50 nm diam, 200 nm long) inside the pores of polycarbonate membranes. According to x-ray diffraction and magnetic measurements, the electrodeposited materials have a good quality but may exhibit strain and possible small departure from the precise stoichiometry. The magnetic properties of these materials are discussed in term of shape magnetic anisotropy, antiphase boundary interactions and the Verwey transition. © 2005 The Electrochemical Society. All rights reserved.