Title :
360° domain wall investigation for sensor applications
Author :
Diegel, Marco ; Mattheis, Roland ; Halder, Ernst
Author_Institution :
Inst. for Phys. High Technol., Jena, Germany
fDate :
7/1/2004 12:00:00 AM
Abstract :
The stability of 360° domain walls is suitable for future sensor applications. We present a new idea for such a sensor based on special spin valve geometries, where 360° domain walls can be generated with an appropriate magnetic field and stored. Micro magnetic simulations and the first experimental structures show the feasibility of the idea. The magnetoresistive effect in our spin-valve sandwich is up to 0.5% for one 360° domain wall.
Keywords :
giant magnetoresistance; magnetic domain walls; magnetic sensors; spin valves; 360° domain wall stability; domain wall generation; giant magnetoresistance; magnetic domains; magnetic field; magnetic sensors; magnetoresistive effect; micromagnetic simulation; sensor applications; spin valve geometry; Contacts; Geometry; Giant magnetoresistance; Magnetic domain walls; Magnetic domains; Magnetic field measurement; Magnetic sensors; Magnetization; Spin valves; Transportation; Giant magnetoresistance; magnetic domains; magnetic sensors;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.830434
