04-07-2019 дата публикации
Номер: US20190207093A1
The present disclosure relates to a magnon spin valve device, a magnon sensor, a magnon field effect transistor, a magnon tunnel junction and a magnon memory. A magnon spin valve device may comprise a first ferromagnetic insulation layer, a non-magnetic conductive layer disposed on the first ferromagnetic insulation layer, and a second ferromagnetic insulation layer disposed on the non-magnetic conductive layer. 1. A magnon spin valve device comprising:a first ferromagnetic insulation layer;a non-magnetic conductive layer disposed on the first ferromagnetic insulation layer; anda second ferromagnetic insulation layer disposed on the non-magnetic conductive layer.2. The magnon spin valve device of claim 1 , wherein each of the first ferromagnetic insulation layer and the second ferromagnetic insulation layer comprises one or more of the following materials: RFeO claim 1 , MFeO claim 1 , FeO claim 1 , BaFeO claim 1 , SrFeO claim 1 , and doped compounds thereof claim 1 , where R is Y claim 1 , Pr claim 1 , Nd claim 1 , Sm claim 1 , Eu claim 1 , Gd claim 1 , Tb claim 1 , Dy claim 1 , Ho claim 1 , Er claim 1 , Tm claim 1 , Yb or Lu claim 1 , and M is Mn claim 1 , Zn claim 1 , Cu claim 1 , Ni claim 1 , Mg or Co claim 1 , andwherein the non-magnetic conductive layer comprises one or more of the following materials: Cu, Ru, Ag, Cr, and Au.3. The magnon spin valve device of claim 1 , wherein the first ferromagnetic insulation layer has a relatively fixed magnetic moment claim 1 , and the second ferromagnetic insulation layer has a free magnetic moment that is free to change with an external magnetic field.4. The magnon spin valve device of claim 1 , wherein the non-magnetic conductive layer has a thickness smaller than three times of its spin diffusion length.5. The magnon spin valve device of claim 1 , wherein the magnon spin valve device is used as a magnon sensor.6. A magnon field effect transistor comprising:a first ferromagnetic region, a second ferromagnetic region, ...
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