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Orientation of the magnetic moments in a stack of three ferromagnetic layers (0, 1, 2); the presence of a magnetic field directed opposite to the magnetization is indicated by an arrow outside the stack.
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We propose a device that can operate as a magneto-resistive switch or oscillator. The device is based on a spin-thermo-electronic control of the exchange coupling of two strong ferromagnets through a weakly ferromagnetic spacer. We show that the local Joule heating due to a high concentration of current in a magnetic point contact or a nanopillar c...
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