High rotatable magnetic anisotropy in MnBi thin films

Magnetic anisotropy of thin sputtered MgB2 films on MgO substrates in high magnetic fields

Reorientation of magnetic anisotropy in obliquely sputtered metallic thin films

Reorientation in the magnetic anisotropy as a function of film thickness has been observed in Co-Ni and Co thin films, obliquely sputtered on a polyethylene terephthalate substrate at a large incidence angle ~70°!. This effect is a consequence of the low magnetocrystalline anisotropy of the films ~fcc structure of Co! and changes in microstructure from nuclei to columns according to the thickne...

Reorientation of magnetic anisotropy in epitaxial cobalt ferrite thin films

A. Lisfi,1,* C. M. Williams,1 L. T. Nguyen,2 J. C. Lodder,2 A. Coleman,1 H. Corcoran,1 A. Johnson,1 P. Chang,1 A. Kumar,1 and W. Morgan1 1Department of Physics, Morgan State University, 1700 E. Cold Spring Lane, Baltimore, Maryland 21251, USA 2SMI, MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands Received 27 March 2007; revised manuscript ...

Probing magnetic anisotropy effects in epitaxial CrO2 thin films

The magnetic anisotropy in ferromagnetic chromium dioxide thin films (Tc;393 K) grown epitaxially on ~100! TiO2 substrates, is probed using precise rf transverse susceptibility (xT) measurements. Singular peaks in xT are observed that are associated with the anisotropy (6HK) and switching (6Hs) fields in CrO2. Theoretical calculations of xT based on a simple coherent rotation model display rema...

Annealed Co thin films: Pit formation and magnetic anisotropy

We present a study of the morphological and magnetic transformation of hcp~0001! Co thin films, grown via sputtering on Al2O3(112̄0), which occurs when they are annealed in vacuum in the temperature range of 500 °C,TA,600 °C. In this temperature range, the films undergo a reentrant smoothening transition. For very thin films ~thickness t,20 nm!, this coincides with a fcc~111! to fcc~001! recryst...