Dieter Weller

TL;DR: Thermal annealing converts the internal particle structure from a chemically disordered face- centered cubic phase to the chemically ordered face-centered tetragonal phase and transforms the nanoparticle superlattices into ferromagnetic nanocrystal assemblies that can support high-density magnetization reversal transitions.

TL;DR: In this article, the authors present a review of the literature on high Ku alternative media, both for longitudinal and perpendicular recording, with data on sputtered and evaporated thin FePt films, with coercivities exceeding 10000 Oe.

TL;DR: In this article, the authors discuss thermal effects in the framework of basic Arrhenius-Neel statistical switching models and reveal the onset of thermal decay at "stability ratios" (k/sub u/V/K/sub B/T)/sub 0//spl sime/35 /spl plusmn/ 2.

TL;DR: In this article, a bit-patterned media (BPM) fabrication method was proposed for magnetic data recording at > 1 Tb/in 2 and circumvents many of the challenges associated with extending conventional granular media technology.

TL;DR: In this paper, a chemical-ordering-induced peak in the polar magneto-optical Kerr effect spectra of FePt compounds is found to be in quantitative agreement with predictions based on ab initio magnetooptical calculations.