Počet záznamů: 1

Spiral ground state against ferroelectricity in the frustrated magnet BiMnFe.sub.2./sub.O.sub.6./sub..

  1. 1.
    0366992 - FZU-D 2012 RIV US eng J - Článek v odborném periodiku
    Abakumov, A.M. - Tsirlin, A.A. - Perez-Mato, J. M. - Petříček, Václav - Rosner, H. - Yang, T. - Greenblatt, M.
    Spiral ground state against ferroelectricity in the frustrated magnet BiMnFe2O6.
    Physical Review. B. Roč. 83, č. 21 (2011), "214402-1"-"214402-10" ISSN 1098-0121
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: magnetic structure * superspace approach * band structure calculation
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 3.691, rok: 2011

    The spiral magnetic structure and underlying spin lattice of BiMnFe2O6 are investigated by low-temperature neutron powder diffraction and density functional theory band structure calculations. In spite of the random distribution of the Mn3+ and Fe3+ cations, this centrosymmetric compound undergoes a transition into an incommensurate antiferromagnetically ordered state below TN ~ 220 K.The magnetic structure is characterized by the propagation vector k = [0,β,0] with β~0.14 and the P221211´(0β0)0s0s magnetic superspace symmetry.
    Trvalý link: http://hdl.handle.net/11104/0201796