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(Microsoft PowerPoint - Acad\351mie_08.ppt [Lecture seule])

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2) Directions pour une TMR plus élevéeFerromagnétiquesà polarisation en spin 100% (composésdemi-metalliquesmetalliques)Exemple: La 2/3 Sr 1/3 MnO 3 (LSMO)jonctions tunnel LSMO/SrTiO 3 /LSMO (CNRS/Thales): TMR de 1800%correspondant à 95% de polarisation de spinLa 2/3 Sr 1/3 MnO 3SrTiO 3La 2/3 Sr 1/3 MnO 3Image de microscopie électronique par J-L. Maurice, UMR CNRS/Thales

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