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Single Molecule Magnetoresistance with Combined Antiferromagnetic and Ferromagnetic Electrodes

Bagrets, Alexei ; Schmaus, Stefan ; Jaafar, Ali ; Kramczynski, Detlef ; Yamada, Toyo Kazu ; Alouani, Mébarek ; Wulfhekel, Wulf ; Evers, Ferdinand


The magnetoresistance of a hydrogen-phthalocyanine molecule placed on an antiferromagnetic Mn(001) surface and contacted by a ferromagnetic Fe electrode is investigated using density functional theory based transport calculations and low-temperature scanning tunneling microscopy. A large and negative magnetoresistance ratio of ∼50% is observed in combination with a high conductance. The effect ...


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