Title :
Exchange springs in L10-FePt(110)/A1-FePt bilayer films
Author :
Li, Y. ; Zeng, D. ; Zhao, H. ; Du, B. ; Wei, J. ; Yoshimura, S. ; Saito, H. ; Li, G.
Author_Institution :
Sch. of Phys. Sci. & Technol., Southwest Univ., Chongqing, China
Abstract :
The magnetic properties of L10-FePt(110)/A1-FePt bilayer films related to exchange spring is investigated in this research for potential application in MFM tips. The bilayer films are deposited on MgO(110) substrates by magnetron sputtering at 400°C and vacuum annealed at 400-700°C for 6 h. X-ray diffraction, atomic force microscopy, and vibrating sample magnetometry are used for characterization. It is shown that the hysteresis loop can be efficiently tailored by the thickness and magnetic ordering of FePt(110) layer.
Keywords :
X-ray diffraction; annealing; atomic force microscopy; exchange interactions (electron); interface magnetism; iron alloys; magnetic hysteresis; magnetic thin films; magnetometry; metallic thin films; platinum alloys; sputter deposition; FePt; MFM; MgO; X-ray diffraction; atomic force microscopy; bilayer films; exchange spring; hysteresis loop; magnetic ordering; magnetic properties; magnetron sputtering; temperature 400 degC to 700 degC; time 6 h; vacuum annealing; vibrating sample magnetometry; Magnetic domains; Magnetic field measurement; Magnetic hysteresis; Magnetometers; Magnetosphere; Perpendicular magnetic anisotropy;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156573
