Method and system for providing an engineered magnetic layer including Heusler layers and an amorphous insertion layer
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United States of America Patent
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Jan 12, 2016
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Sep 5, 2014
filing date -
Dec 11, 2013
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Abstract
A magnetic junction usable in a magnetic device and a method for providing the magnetic junction are described. The magnetic junction includes a free layer, a pinned layer and nonmagnetic spacer layer between the free and pinned layers. At least one of the free and pinned layers includes at least one engineered Heusler structure having a first magnetic layer, a second magnetic layer and an amorphous layer between the magnetic layers. At least one of the first and second magnetic layer(s) is a Heusler layer. The first magnetic layer's perpendicular magnetic anisotropy energy (PMAE) exceeds is out-of-plane demagnetization energy. The second magnetic layer's PMAE exceeds its out-of-plane demagnetization energy. The free layer and/or the pinned layer has a PMAE greater than an out-of-plane demagnetization energy. The free layer is switchable between stable magnetic states when a write current is passed through the magnetic junction.
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