title: Coexistence of antiferromagnetic and ferromagnetic orders at remanent state in epitaxial multiferroic Bi2FeCrO6 nanostructures.
abstract: We report the local electronic and magnetic properties of Bi(2)FeCrO(6) nanostructures by element-specific polarized x-ray techniques. Sizable magnetic ordering in the remanent state is observed at room temperature for both Fe and Cr ions. The Bi(2)FeCrO(6) system offers an example of d(5)-d(3) magnetic superexchange interaction with a magnetic order for both Fe and Cr, which are both formally in the  + 3 valence state. The results suggest a coexistence of antiferromagnetic and ferromagnetic superexchange interaction between Fe and Cr spins in the nanostructures at the remanent state and at room temperature.
authors.affiliation: NAST Center and Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, I-00133 Rome, Italy.
authors.forename: R
authors.initials: R
authors.lastname: Nechache
authors.forename: C
authors.initials: C
authors.lastname: Nauenheim
authors.forename: U
authors.initials: U
authors.lastname: Lanke
authors.forename: A
authors.initials: A
authors.lastname: Pignolet
authors.forename: F
authors.initials: F
authors.lastname: Rosei
authors.forename: A
authors.initials: A
authors.lastname: Ruediger
mesh_terms: D000465:Algorithms; D001729:Bismuth / Q000737:chemistry*; D058085:Iron Compounds / Q000737:chemistry*; D059346:Magnets / Q000737:chemistry*; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D058085:Iron Compounds; D010087:Oxides; D001729:Bismuth