RT-SHPM imaging of Permalloy microstructures and garnet films using new high performance InSb sensors

Author

Oral, A. ; Kaval, M. ; Dede, M. ; Sandhu, A.

Author_Institution

Dept. of Phys., Bilkent Univ., Ankara, Turkey

fYear

2002

Abstract

Summary form only given. Scanning Hall probe microscopy (SHPM) is a quantitative and noninvasive technique to image magnetic samples with high spatial and magnetic field resolution: /spl sim/120 nm & 6/spl times/10/sup -6/T//spl radic/(Hz) at room temperature. A sub-micron Hall probe is scanned over the sample surface to measure the surface magnetic fields using conventional scanning tunneling microscopy-positioning techniques. We have developed new low noise, high performance InSb Hall sensors for room temperature scanning Hall probe microscopy (RT-SHPM), which has a noise level of 6/spl times/10/sup -7/T//spl radic/(Hz).

Keywords

III-V semiconductors; Permalloy; garnets; indium compounds; magnetic domains; magnetic noise; magnetic sensors; magnetic thin films; scanning probe microscopy; FeNi; InSb; Permalloy microstructures; RT-SHPM imaging; conventional STM-positioning techniques; garnet films; low noise high performance Hall sensors; magnetic field resolution; quantitative noninvasive technique; room temperature scanning Hall probe microscopy; spatial resolution; sub-micron Hall probe; surface magnetic fields; Garnet films; Hall effect devices; High-resolution imaging; Image sensors; Magnetic field measurement; Magnetic force microscopy; Magnetic sensors; Microstructure; Noise level; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International

Conference_Location

Amsterdam, The Netherlands

Print_ISBN

0-7803-7365-0

Type

conf

DOI

10.1109/INTMAG.2002.1001104

Filename

1001104