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AssigneeSamsung Electronics Co., Ltd.
InventorsDmytro Apalkov, Alexey Vasilyevitch Khvalkovskiy, Vladimir Nikitin, Mohamad Towfik Krounbi, Xueti Tang, Se Chung Oh, Woo Chang Lim, Jang Eun Lee, Ki Woong Kim, Kyoung Sun Kim
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A method and system for setting the direction of pinned layers in a magnetic junction are described. In one aspect, a magnetic field greater than the coercivity of the layers in a pinned layer but less than the coupling field between the layers is applied. In another aspect the pinned layers are switched from an anti-dual state to a dual state using a spin transfer torque current. In another aspect, a magnetic junction having a partial perpendicular anisotropy (PPMA) layer in the pinned layer is provided. In some aspects, the PPMA layer is part of a synthetic antiferromagnetic structure. In some embodiments, a decoupling layer is provided between the PPMA layer and another ferromagnetic layer in the pinned layer.
A method for setting a reference layer of a pinned layer in magnetic junction including a free layer, a nonmagnetic spacer layer, and the pinned layer, the nonmagnetic spacer layer residing between the pinned layer and the free layer, the pinned layer including a plurality of ferromagnetic layers interleaved with at least one spacer layer, the plurality of ferromagnetic layers having at least one easy axis, the method comprising:
A method for setting a first pinned layer in magnetic junction including the first pinned layer, a first nonmagnetic spacer layer, a free layer, a second nonmagnetic spacer layer, and a second pinned layer, the first nonmagnetic spacer layer being between the first pinned layer and the free layer, the second nonmagnetic spacer layer residing between the second pinned layer and the free layer, the first pinned layer having at least one easy axis, the first pinned layer and the second pinned layer being in an anti-dual state, the first pinned layer having a first coercivity, the second pinned layer having a second coercivity greater than the first coercivity, the method comprising:
A magnetic junction comprising:
A magnetic junction comprising:
A method for providing a magnetic junction comprising:
A method for providing magnetic junction comprising:
Dependencies are inferred from the claim text.