A comparison of highly coercive FePt films prepared by pulsed laser deposition and electrodeposition

Author

Fähler, S. ; Weisheit, M. ; Leistner, K. ; Schlörb, H. ; Thomas, J. ; Schultz, L.

Author_Institution

IFW Dresden, Germany

fYear

2005

fDate

4-8 April 2005

Firstpage

1277

Lastpage

1278

Abstract

Two alternative preparation routes for FePt films are compared: pulsed laser deposition (PLD) and electrodeposition. It is described how an optimal microstructure can be obtained for best magnetic properties, and the advantages of both preparation routes are discussed. The low slope of the initial magnetization curve annealed at optimum conditions indicates that coercivity in electrodeposited granular films is controlled by pinning. In contrary, epitaxial films prepared by PLD on MgO(100) show that domain reversal in FePt films reaching the highest coercivity is governed by nucleation.

Keywords

annealing; coercive force; crystal microstructure; discontinuous metallic thin films; electrodeposits; ferromagnetic materials; iron alloys; magnetic domains; magnetic epitaxial layers; nucleation; platinum alloys; pulsed laser deposition; FePt; MgO; annealing; coercivity; domain reversal; electrodeposition; granular epitaxial films; magnetic properties; magnetization curve; nucleation; optimal microstructure; pinning; pulsed laser deposition; Annealing; Coercive force; Magnetic analysis; Magnetic anisotropy; Magnetic films; Magnetic properties; Microstructure; Optical pulses; Pulsed laser deposition; Saturation magnetization;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464068

Filename

1464068