Domain structures in epitaxial (101¯0) Co wires

Author

Prejbeanu, I.L. ; Buda, L.D. ; Ebels, U. ; Viret, M. ; Fermon, C. ; Ounadjela, K.

Author_Institution

Inst. de Phys. et Chimie des Mater. de Strasbourg, France

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2108

Lastpage

2110

Abstract

A systematic investigation of the magnetic domain structure is presented for epitaxial sub-micron (101¯0) Co wires characterized by a strong in-plane uniaxial magneto-crystalline anisotropy whose easy axis is oriented perpendicular to the long wire axis. Wires of varying width (100 to 1000 nm) and thickness (30 to 80 nm) were patterned by electron beam lithography and lift-off process. We establish experimentally the boundaries between the ground state transverse single domain state and the open stripe structure as a function of wire thickness and width. Moreover, the stability of the transverse single domain state is investigated as a function of the magnetization history

Keywords

cobalt; electron beam lithography; ferromagnetic materials; magnetic domain walls; magnetic epitaxial layers; perpendicular magnetic anisotropy; 100 to 1000 nm; 30 to 80 nm; Co; domain structures; electron beam lithography; epitaxial (101¯0) Co wires; ground state transverse single domain state; lift-off process; magnetic domain structure; open stripe structure; strong in-plane uniaxial magneto-crystalline anisotropy; Anisotropic magnetoresistance; Electron beams; Lithography; Magnetic anisotropy; Magnetic domains; Magnetization; Perpendicular magnetic anisotropy; Stability; Stationary state; Wires;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951068

Filename

951068