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

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7156573

Filename

7156573