Anisotropy-graded L10 FePt(001) magnetic film obtained by graded working pressures

Author

Hsu, J. ; Sun, A. ; Lin, Y. ; Kuo, P.

Author_Institution

Nat. Taiwan Univ., Taipei, Taiwan

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

L1₀ FePt have been proposed as one of the potential candidates for future magnetic recording medium exceeding 1 Tbit/in.² recoding density, as it has high magnetocrystalline anisotropy (K_u). However, this well-ordered material produces a problem of writing difficulty. The reduction of the writing field may degrade the thermal stability for recording media. In order to solve the issues of writing problem and thermal stability simultaneously, the exchange-spring media and later graded media were proposed to reduce the writing field and retain the magnetic thermal stability.

Keywords

iron alloys; magnetic anisotropy; magnetic recording; magnetic thin films; metallic thin films; platinum alloys; thermal stability; FePt; anisotropy-graded L1₀ FePt(001) magnetic film; exchange-spring media; graded media; magnetic recording medium; magnetic thermal stability; magnetocrystalline anisotropy; recoding density; writing field; Films; Magnetic recording; Media; Perpendicular magnetic anisotropy; Thermal stability; Writing;

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.2015.7157517

Filename

7157517