Dynamic properties of bubbles and stripes in tilted [111] garnet films

Author

Shiomi, S. ; Ohno, E. ; Iwata, S. ; Uchiyama, S.

Author_Institution

Nagoya University, Nagoya, Japan.

Volume

17

Issue

6

fYear

1981

fDate

11/1/1981 12:00:00 AM

Firstpage

2772

Lastpage

2774

Abstract

Several kinds of garnet films have been grown by LPE techniques on substrates whose surface normals slightly tilt from the crystallographic [111] axis. Magnetic anisotropies induced in these films are orthorhombic-like. With the increase of the [111] axis tilting angle Δc, the easy direction of a uniaxial part Kutilts away from the surface normal and the magnitude of an in-plane part Kp, which is not the projection of Kuonto the film plane, increases almost linearly, reaching $\\eta \\equiv K_{p}/2\\pi M_{s}^{2}\\simeq 5$ at $\\Delta _{c}\\simeq 6\\deg$ . In order to investigate the effect of in-plane anisotropy thus induced on the domain wall motion, bubble and stripe domain transport velocities are measured. Both bubble and stripe velocities increase with the increase of in-plane anisotropy. However, the increase of peak velocities of stripe domains, which has been shown to correspond to the punch-through threshold of a horizontal Bloch line in a plane wall, with the increase of Kpis much smaller than that predicted by Schlömann\´s calculation.

Keywords

Magnetic anisotropy; Magnetic bubble domains; Magnetic bubble films; Magnetic stripe domains; Anisotropic magnetoresistance; Epitaxial growth; Garnet films; Goniometers; Magnetic anisotropy; Magnetic films; Magnetic materials; Magnetometers; Saturation magnetization; Torque measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1981.1061651

Filename

1061651