Method and system for providing inverted dual magnetic tunneling junction elements
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United States of America Patent
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Nov 18, 2014
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Mar 11, 2011
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Mar 17, 2010
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Abstract
A method and system for providing a magnetic junction residing on a substrate and usable in a magnetic device are described. The magnetic junction includes a first pinned layer, a first nonmagnetic spacer layer having a first thickness, a free layer, a second nonmagnetic spacer layer having a second thickness greater than the first thickness, and a second pinned layer. The first nonmagnetic spacer layer resides between the pinned layer and the free layer. The first pinned layer resides between the free layer and the substrate. The second nonmagnetic spacer layer is between the free layer and the second pinned layer. Further, the magnetic junction is configured such that the free layer is switchable between a plurality of stable magnetic states when a write current is passed through the magnetic junction.
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