Galvanomagnetic device and magnetic sensor
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jul 9, 2009
app pub date -
Dec 24, 2008
filing date -
Dec 27, 2007
priority date (Note) -
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Abstract
Embodiments of the present invention relate to a galvanomagnetic device for use as a magnetic sensor or magnetic memory device. In a particular embodiment, the galvanomagnetic device comprises a non-conductive substrate, a first magnetic layer having a magnetic anisotropy perpendicular to the surface thereof, and a ferromagnetic second magnetic layer formed on the first magnetic layer. On the second magnetic layer, current electrodes are disposed to pass a current between two points, and voltage electrodes are disposed to detect a Hall voltage between two points perpendicularly to the current flow direction.
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