Dr
Bálint Náfrádi
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Most of the digital information today is encoded in the magnetization of ferromagnetic domains. Writing a bit is usually achieved by rotating domains, which relies on magnetic fields. An alternative approach is to change the magnetic state directly by changing the interaction between spins. Correlated oxides are ideal materials for this because the effect of small external control parameter is amplified by the electronic correlations. Here, we present a radically new method for reversible, light-induced tuning of ferromagnetism at room temperature using a CH3NH3PbI3/La0.7Sr0.3MnO3 heterostructure. We demonstrate that photo-induced charge carriers from the CH3NH3PbI3 photovoltaic perovskite efficiently dope the La0.7Sr0.3MnO3 thin film and melt the ferromagnetism.
Dr
Bálint Náfrádi
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Mr
Péter Szirmai
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Dr
Masimo Spina
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Dr
Andrea Pisoni
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Mr
Xavier Mettan
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Prof.
Norbert Nemes
(Laboratorio de Heteroestructuras con aplicación en Spintronica, Unidad Asociada Consejo Superior de Investigaciones Científicas/Universidad Complutense Madrid, ES-28049 Madrid, Spain)
Prof.
László Forró
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Dr
Endre Horvath
(Laboratory of Physics of Complex Matter, Ecole Polytechnique Fédérale de Lausanne, Switzerland)
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