Title :
Magnetostriction measurements of L10Fe50Pt(50−x)Pdx thin films
Author :
Li, W. ; Zhou, W. ; Lenox, P. ; Seki, T. ; Takanashi, K. ; Jander, A. ; Dhagat, P.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Oregon State Univ., Corvallis, OR, USA
Abstract :
L10 ordered FePtPd alloy films, with strong perpendicular magnetic anisotropy, are leading candidates for recording media in next-generation hard disk drives and solid state magnetic random access memory (MRAM) technologies. The magnetostrictive properties of such materials are of importance, as strain thereby in these systems will impact their magnetic switching characteristics. In heat assisted magnetic recording, for example, the medium experiences large strains due to thermal expansion during recording, while MRAM bit cells are often subject to large process-induced strains. Further, the discovery or design of a highly magnetostrictive, high-anisotropy material would be advantageous to the development of strain-assisted magnetic recording or MRAM based on synthetic multiferroics.
Keywords :
iron alloys; magnetic thin films; magnetostriction; metallic thin films; palladium alloys; perpendicular magnetic anisotropy; platinum alloys; Fe50Pt(50-x)Pdx; L10 ordered alloy thin films; MRAM bit cells; heat assisted magnetic recording; magnetic switching characteristics; magnetostriction measurements; multiferroics; next-generation hard disk drives; perpendicular magnetic anisotropy; solid state magnetic random access memory; strain-assisted magnetic recording; Films; Magnetic hysteresis; Magnetic recording; Magnetostriction; Perpendicular magnetic anisotropy; Strain;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157265
