Synthesis of nanostructured FePt systems

Magnetic hardening in FePt nanostructured films

Nanostructured FePt films for magnetic media applications

Smaller, faster, denser and cheaper magnetic disk drives are demanded for information storage using magnetic media. Increase in high areal density in magnetic recording requires small bit cells with very small grain size. The reduction of bit cell volume and grain size will eventually be constrained by the undesirable thermal instability of magnetization due to the superparamagnetic effect, thu...

Magnetic Properties of Nanostructured CoPt and FePt Thin Films

Polycrystalline MgO underlayer films lead to different preferred orientations of 10 CoPt and FePt films after the annealing process, depending on the thickness of 10 films. 10 films with a thickness greater than 20 nm revealed mostly 10 [100] fiber texture and consequently in-plane anisotropy as determined by magnetic hysteresis. Strong perpendicular anisotropy due to the 10 [001] fiber texture...

Combustion synthesis in nanostructured reactive systems

http://dx.doi.org/10.1016/j.apt.2015.03.013 0921-8831/ 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved. ⇑ Corresponding authors at: Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA. Tel.: +1 574 631 9825 574 631 8366 (A.S. Mukasyan), Surface Engineering...

Chemical ordering phenomena in nanostructured FePt: Monte Carlo simulations.

Free-surface-induced L10 chemical long-range ordering phenomena in a nanolayer, a nanowire and a cubic nanoparticle of FePt were studied by means of Monte Carlo simulations. The system was modeled with nearest-neighbor and next-nearest-neighbor interatomic pair interactions deduced from ab initio calculations. The generated samples, the dimensionality of which was determined by appropriate peri...