Current-driven switching in a single exchange-biased ferromagnetic layer |
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Authors: | Chen T Y Ji Y Chien C L Stiles M D |
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Affiliation: | Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA. |
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Abstract: | We demonstrate spin-transfer torque effects in a single exchange-biased ferromagnetic layer. A current through a point contact to the exchange-biased Co layer reverses the magnetization of a nanodomain in the layer hysteretically for low applied magnetic fields and reversibly for high fields (up to 9 T). These effects are the inverse of the domain wall magnetoresistance, in the same way that similar effects in multilayers are the inverse of giant magnetoresistance. |
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