Orientationally independent antiferromagnetic coupling in epitaxial Fe/Cr (211) and (100) superlattices

Exchange coupling induced antiferromagnetic-ferromagnetic transition in Pr0.5Ca0.5MnO3/La0.5Ca0.5MnO3 superlattices.

Tunneling in epitaxial FeÕSiÕFe structures with strong antiferromagnetic interlayer coupling

Fe~5 nm!/Si~0.8–2 nm!/Fe~5 nm! structures are grown by molecular-beam epitaxy on Ag~001! buffered GaAs substrates. Ferromagnetic tunneling junctions with crossed electrodes and junction areas ranging from 22 to 225 mm are patterned using photolithography. Antiparallel alignment of the magnetizations due to antiferromagnetic interlayer coupling, which is confirmed by longitudinal magneto-optical...

Observation of antiferromagnetic coupling in epitaxial ferrite films

Defects in ferrite can change the local magnetic coupling from ferromagnetic to strongly antiferromagnetic. In eptiaxial magnetite Fe3O4 films, defects locally altering exchange interaction, i.e., “antiphase boundaries” APB , essentially determine magnetic and magnetotransport properties. We locally observed specific magnetization reversal events in epitaxial magnetite Fe3− O4/MgO films 0.03 by...

Magnetization switching and inverted hysteresis in perpendicular antiferromagnetic superlattices

The magnetization of antiferromagnetic (AFM) superlattices as a function of applied field was investigated using Monte Carlo simulations. The simulated hysteresis loops of systems with N magnetic layers with AFM coupling between the layers exhibit distinct steps with magnetization that decreases with increasing N. Systems with odd N exhibit 3 steps and inverted hysteresis for N> 3, whereas syst...

1 Epitaxial growth of Cu ( 100 ) and Pt ( 100 ) thin

Pulsed laser deposition (PLD) has been used to grow epitaxially oriented thin films of Cu and Pt on (100)-oriented substrates of both SrTiO3 and LaAlO3. The resulting films have been characterized for their crystalline orientations using x-ray diffraction (XRD) and for their surface morphologies using atomic force microscopy (AFM). The diffraction results illustrated that purely epitaxial Cu(10...