Monti, MatteoSantos, BenitoMascaraque Susunaga, ArantzazuRodríguez De La Fuente, ÓscarNino, Miguel AngelMentes, Tevfik OnurLocatelli, AndreaMcCarty, Kevin F.Marco, Jose F.Figuera, Juan de la2023-06-202023-06-202012-01-111098-012110.1103/PhysRevB.85.020404https://hdl.handle.net/20.500.14352/44460© 2012 American Physical Society Spanish Ministry of Science and Innovation [MAT2009-4578-C03-01, MAT2009-14578-C03-02, MAT2010-21156-C03-02]; Office of Basic Energy Sciences, Division of Materials and Engineering Sciences, US Department of Energy [DE-AC04-94AL85000]; European Union [226716-ELISA]; Spanish Ministry of Science and Innovation through FPIThe oldest known magnetic material, magnetite, is of current interest for use in spintronics as a thin film. An open question is how thin can magnetite films be and still retain the robust ferrimagnetism required for many applications. We have grown 1-nm-thick magnetite crystals and characterized them in situ by electron and photoelectron microscopies including selected-area x-ray circular dichroism. Well-defined magnetic patterns are observed in individual nanocrystals up to at least 520 K, establishing the retention of ferrimagnetism in magnetite two unit cells thick.engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.85.020404http://journals.aps.orgopen access538.9Iron-oxide filmsPulsed-laser depositionEpitaxial-growthFe_3O_4 filmsFeMagnetoresistanceNucleationBehaviorFísica de materiales