publication . Doctoral thesis . 2004

Spin Valve Systems for Angle Sensor Applications

Johnson, Andrew;
Open Access English
  • Published: 16 Dec 2004
  • Country: Germany
Abstract
A contact-less sensor with the ability to measure over a 360° range has been long sought after in the automotive industry. Such a sensor could be realized by utilizing the angle dependence of the Giant Magneto Resistance (GMR) Effect in a special type of magnetic multilayer called a spin valve arranged in a wheatstone bridge circuit [Spo96]. A spin valve consists of two ferromagnetic layers separated by nonmagnetic spacer layer where the magnetization of one of the ferromagnetic layers is pinned in one direction, the bias direction, by the neighboring antiferromagnetic layer. The resistance changes are therefore dependent on the (external) magnetic field directi...
Subjects
arXiv: Condensed Matter::Materials ScienceCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter::Strongly Correlated Electrons
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Doctoral thesis . 2004
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