Hard magnetic FePt thin films and nanopatterns

Size-composition-dependent magnetic properties of metastable Fe–Pt nanocrystal prepared by ion beam mixing

“…Later, the magnetic order in the fccFe has been investigated based on the band theory calculations, and a similar verdict has been reached by several research groups that the metastable fcc-Fe with a large lattice constant preferred to be in a high-spin ferromagnetic state (HS-FM) [10][11][12][13][14][15][16][17]. Recently, the Fe-Pt alloys have attracted considerable attention as one of the leading candidate materials for the next generation high-density recording media, and much interest has been focused on the L1 0 phase of the equatomic Fe and Pt [18][19][20][21][22][23][24]. Considering that L1 0 Fe-Pt has frequently been obtained by annealing of the metastable fcc Fe-Pt phase, the magnetism of the L1 0 Fe-Pt may be affected by the magnetism of fcc Fe-Pt.…”

Fe-Pt Thick Film Magnets Prepared by High-Speed PLD Method

“…The distance between a target and a substrate was fixed at 10 mm. The area and composition of all the obtained films were 5 5 mm [2] and approximately Fe Pt , respectively. The deposition rate was varied by controlling the laser power between 1 and 9 W at the irradiation exit of a Nd-YAG laser system.…”

Effects of layering and magnetic annealing on the texture of CoPt films

“…Sputtered polycrystalline CoPt films, tend to grow with a (1 1 1) texture thus having the easy axis on a cone at an angle of 54.71 to the film normal. Different degrees of (0 0 1) texture have been achieved with the use of Ag [5][6][7][8], Au [9], B 2 O 3 [10] and ZnO 2 [11] layers, under specific heat-treatment conditions and within thickness limitations, on which the texture shows very sensitive dependence. In nanostructured FePt/B 2 O 3 films texture is found to depend mainly on the cooling rate and can be achieved both in zero and 100 kOe field [12].…”