title: Magnetic and crystal structure determination of Mn₂FeSbO₆ double perovskite.
abstract: The perovskite form of the Mn2FeSbO6 oxide has been obtained at 5.5 GPa and 1523 K. X-ray and neutron diffraction data reveal that this compound crystallizes in the monoclinic P21/n space group with a = 0.5234 nm, b = 0.5389 nm, c = 0.7642 nm and β = 90.372° lattice parameters. AC and DC magnetic susceptibility measurements suggest the existence of a complex magnetic behavior below 200 K. The magnetic structure has been determined and can be described on the basis of an elliptical spiral with an incommensurate propagation vector, k = [0,0.426,0], where the magnetic moments of 2Mn(2+) and Fe(3+) cations are confined to the ac-plane.
authors.affiliation: Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain. aj2santosgarcia@gmail.com
authors.forename: A J
authors.initials: AJ
authors.lastname: Dos Santos-García
authors.forename: C
authors.initials: C
authors.lastname: Ritter
authors.forename: E
authors.initials: E
authors.lastname: Solana-Madruga
authors.forename: R
authors.initials: R
authors.lastname: Sáez-Puche