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L'effet tunnel dépendant du spin comme sonde du micromagnétisme et du transport d'électrons chauds : application aux capteurs

Abstract : Studies of the spin dependent tunneling effect in ferromagnetic metal /insulating/ferromagnetic metal stacks are being actively pursued for their high application potential (magnetic sensors, random access memories, read heads... ). The resistance of these devices is directly link to the relative orientation of the electrode magnetizations. The high sensitivity of spin dependent tunneling effect to the electrodes magnetic configuration has been used both as a probe for the micromagnetic behavior of the electrodes and to realize magnetic sensors. Moreover, double tunnel junctions with three terminals have been prepared. This 3-terminals device allowed us to evidence an hot electron current which is forecast to be on the base of a new kind of transistor.
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Submitted on : Thursday, April 24, 2003 - 10:38:59 AM
Last modification on : Monday, October 19, 2020 - 3:48:00 PM
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Daniel Lacour. L'effet tunnel dépendant du spin comme sonde du micromagnétisme et du transport d'électrons chauds : application aux capteurs. Matière Condensée [cond-mat]. Université Henri Poincaré - Nancy I, 2002. Français. ⟨tel-01746749v2⟩

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