In-plane Anisotropies, Magnetostriction and Magnetoresistance of epitaxial Co films on GaAs(100) substrates

In this paper, we present the in-plane anisotropies, magnetostriction constants, magnetoresistance and extraordinary Hall effect data for Co/GaAs(100) films thinner than 5 nm. Four films with Co thicknesses of 0.7, 1.4, 2.1 and 3.5 nm were grown by MBE, at room temperature and capped with 2 nm of Cr. The crystal structure was determined using reflected high energy electron density (RHEED).