Noise measurements of Wheatstone bridges made from spin valves with parallel and crossed anisotropies

Author

Eick, Th. ; Mattheis, R.

Author_Institution

Inst. fur Physikalische Hochtechnologie, Jena, Germany

fYear

2002

Abstract

Summary form only given. Spin valve systems based on thin multilayer films sputtered on Si substrates are well suited for sensor elements for the detection of weak magnetic fields, because of their sharp transition of the electric resistance at low magnetic fields. Films were patterned into meander-shaped Wheatstone bridges. In order to have a low noise level it is favorable to use bridges with stripe widths as large as possible.

Keywords

magnetic field measurement; magnetic hysteresis; magnetic multilayers; magnetic noise; magnetic sensors; noise measurement; spin valves; Si; Si substrate; bridge voltage noise spectra; crossed anisotropies; electric resistance transition; hysteresis loop; meander-shaped Wheatstone bridges; multilayer thin films; noise level; parallel anisotropies; sensor elements; spin valve systems; stripe width; weak magnetic fields detection; Anisotropic magnetoresistance; Bridge circuits; Magnetic films; Magnetic multilayers; Magnetic sensors; Noise measurement; Semiconductor films; Sensor systems; Spin valves; Thin film 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.2002.1001245

Filename

1001245