Investigations of ion-implantable submicron bubble material

Author

Krafft, C.S. ; Wang, X. ; Kryder, M.H.

Author_Institution

Carnegie-Mellon University, Pittsburgh, Pennsylvania.

Volume

18

Issue

6

fYear

1982

fDate

11/1/1982 12:00:00 AM

Firstpage

1283

Lastpage

1285

Abstract

We have investigated (Y Sm Tm Gd) (Fe Ga Al) garnets and (Y Sm Tm Gd Lu) (Fe Al) garnets for use as 1.0 μm and 0.5 μm diameter ion-implantable bubble materials, respectively. The selection of garnet composition is based on bubble size, Q factor, temperature dependence of magnetization and anisotropy field, FMR linewidth, and magnetostriction coefficient. Measurements of these parameters, as well as the crystalline anisotropy field are given for different film compositions. Effects of samarium and lutetium addition to achieve 0.5 μm bubbles are discussed. Both film compositions were implanted with deuterium and oxygen and the implantation induced strain and uniaxial anisotropy field change were measured. Margins for 1 μm diameter bubble propagation patterns are given.

Keywords

Magnetic bubble device fabrication; Magnetic bubble films; Anisotropic magnetoresistance; Crystalline materials; Garnets; Iron; Magnetic field measurement; Magnetic materials; Magnetization; Q factor; Strain measurement; Temperature dependence;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1982.1062142

Filename

1062142