Direct Imaging of Two Dimensional Magnetic Patterns With Sub-Micron Resolution Using Thin Garnet Films With Giant Magneto-Optical Effect

Author

Nistor, I. ; Holthaus, C. ; Krafft, C. ; Mayergoyz, I.D.

Author_Institution

Maryland Univ., College Park

fYear

2006

fDate

8-12 May 2006

Firstpage

181

Lastpage

181

Abstract

The garnet films can be used for direct (non-scanning) imaging of two dimensional magnetic patterns. This paper describes the correlation between the quality of these images and the magneto-optical properties of the films. From here, the optimum garnet film compositions are derived with the goal of enhancing the imaging sensitivity and resolution. In this case, the image was formed by rotation of magnetization yielding. Magneto-optical measurements indicated a Faraday rotation between -0.7 and -2.5 deg/mum. The magnetization was measured using VSM and ranged between 20 and 600 G. Optical inspection of the samples indicates that the magnetic domain structures range from out-of-plane stripes to large uniform in-plane domains.

Keywords

Faraday effect; bismuth compounds; gadolinium compounds; garnets; lutetium compounds; magnetic domains; magnetic thin films; magnetisation; (BiGdLu)₃(FeGa)₅O₁₂; Faraday rotation; giant magnetooptical effect; imaging resolution; imaging sensitivity; magnetic domain; magnetization; submicron resolution; thin garnet films; two dimensional magnetic patterns; Garnet films; Image resolution; Magnetic films; Magnetic properties; Magnetization; Magnetooptic effects; Optical films; Optical imaging; Optical sensors; Rotation measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375681

Filename

4261615