Method and system for providing a magnetic junction having a low damping hybrid free layer
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United States of America
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Oct 8, 2019
Grant Date -
Sep 13, 2018
app pub date -
May 23, 2017
filing date -
May 23, 2017
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Abstract
A magnetic junction and method for providing the magnetic junction are described. The magnetic junction includes a reference layer, a nonmagnetic spacer layer and a hybrid free layer. The hybrid free layer is switchable between stable magnetic states using a current passed through the magnetic junction. The nonmagnetic spacer layer is between the free layer and the reference layer. The hybrid free layer includes a soft magnetic layer, a hard magnetic layer and an oxide coupling layer between the hard magnetic layer and the soft magnetic layer. The soft magnetic layer has a soft layer magnetic thermal stability coefficient of not more than thirty. The hard magnetic layer has a hard layer magnetic thermal stability coefficient of at least twice the soft layer magnetic thermal stability coefficient.
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