Magnetic Properties of FeCo Films Prepared by Co-Sputtering and Hydrogenous Gas Reactive Sputtering

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Forty years literature review of primary lung lymphoma

There are several unresolved issues through out the literature regarding the entity of primary lung lymphoma. Extensive literature review of this uncommon pathology is carried out

MAGNETIC PROPERTIES OF τ PHASE AND κ PHASE FILMS IN TERNARY ALLOY SYSTEM

Magnetic properties of τ and κ phases in Mn60-xAl40Cux films prepared by sputtering have been investigated. The phases synthesized in the films changed from τ phase to κ phase through the mixture phase of them with increase of x. Saturation magnetization of the films for each single phase increased with increase of x until mixture phase influenced and that of κ phase depends strongly on the lattice constant

Switching of magnetic easy-axis using crystal orientation for large perpendicular coercivity in CoFe<inf>2</inf>O<inf>4</inf> thin film

Perpendicular magnetization and precise control over the magnetic easy axis in magnetic thin film is necessary for a variety of applications, particularly in magnetic recording media. A strong (111) orientation is successfully achieved in the CoFe2O4 (CFO) thin film at relatively low substrate temperature of 100 °C, whereas the (311)-preferred randomly oriented CFO is prepared at room temperature by the DC magnetron sputtering technique. The oxygen-deficient porous CFO film after post-annealing gives rise to compressive strain perpendicular to the film surface, which induces large perpendicular coercivity. We observe the coercivity of 11.3 kOe in the 40-nm CFO thin film, which is the highest perpendicular coercivity ever achieved on an amorphous SiO2/Si substrate. The present approach can guide the systematic tuning of the magnetic easy axis and coercivity in the desired direction with respect to crystal orientation in the nanoscale regime. Importantly, this can be achieved on virtually any type of substrate

Crystal Structure and Magnetic Properties of Post-Annealed Ba-Ferrite Thin Films for High Density Recording Media

Hexagonal Ba-ferrite films have been prepared at room temperature by facing targets sputtering (FTS) system and they were annealed to crystallize at 900°C in air. In this paper, the dependence of the annealing time on grain size of post-annealed Ba-ferrite films has been studied. It was found that the annealing time of 45sec is sufficient for the crystallization without apparent grain growth under the temperature of 900°C and the post-annealed Ba-ferrite films exhibit isotropic magnetic property