Exchange-bias-modulated inverse superconducting spin switch inCoO/Co/YBa2Cu3O7−δ/La0.7Ca0.3MnO3thin film hybrids
نویسندگان
چکیده
منابع مشابه
Superconducting spin switch with infinite magnetoresistance induced by an internal exchange field.
A theoretical prediction by de Gennes suggests that the resistance in a FI/S/FI (where FI is a ferromagnetic insulator, and S is a superconductor) structure will depend on the magnetization direction of the two FI layers. We report a magnetotransport measurement in a EuS/Al/EuS structure, showing that an infinite magnetoresistance can be produced by tuning the internal exchange field at the FI/...
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The differential conductance of NbN/GdN/TiN superconductor / ferromagnetic insulator / normal metal junctions, with a thick NbN layer shows a large zero-field voltage offset interpreted as a spin-filtered Zeeman splitting of the NbN density of states (DOS) by an effective exchange field (H0) from the GdN. The splitting increases linearly with applied field (Hext) enabling the relative sign of H...
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The exchange coupling between ferromagnetic (FM)-antiferromagnetic (AF) interfaces is a key element of modern spintronic devices. We here introduce a new way of triggering exchange bias (EB) in swift heavy ion (SHI) irradiated FeCo-SiO2 films, which is a manifestation of spin-flipping at high irradiation fluence. The elongation of FeCo nanoparticles (NPs) in SiO2 matrix gives rise to perpendicu...
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For a model system consisting of a ferromagnetic layer exchange coupled to a spin glass, extensive Monte Carlo simulations are performed. For the spin glass the standard short-range Gaussian model is used. Exchange bias is observed as a result of a frozen spin-glass state. The exchange bias fields are calculated for different temperatures, cooling fields, and thicknesses of the spin-glass layer...
متن کاملAntiferromagnetic spin flop and exchange bias
The effect of the antiferromagnetic spin flop on exchange bias has been investigated in antiferromagnetic (MnF2) –ferromagnetic ~Fe! bilayers. Cooling and measuring in fields larger than the antiferromagnetic spinflop field, HSF , causes an irreversible reduction of the magnitude of the exchange bias field, HE . This indicates that, contrary to what is normally assumed, the interface spin struc...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2010
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.81.024512