Počet záznamů: 1

Mechanisms of magnetoelectricity in manganese-doped incipient ferroelectrics

  1. 1.
    0353332 - FZU-D 2011 RIV FR eng J - Článek v odborném periodiku
    Kuzian, R. O. - Laguta, Valentyn - Daré, A.-M. - Kondakova, I.V. - Maryško, Miroslav - Raymond, L. - Garmash, E.P. - Pavlikov, V.N. - Tkach, A. - Vilarinho, P. M. - Hayn, R.
    Mechanisms of magnetoelectricity in manganese-doped incipient ferroelectrics.
    Europhysics Letters. Roč. 92, č. 1 (2010), 17007/1-17007/6 ISSN 0295-5075
    Grant CEP: GA MŠk(CZ) 1M06002
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: magnetoelectric effect * multiferroics * ferroelectrics
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.753, rok: 2010

    The paper reports magnetization measurements and magnetic resonance data for SrTiO3 doped by manganese. It was shown that coexistent spin and dipole glass beahviours are strongly affected by the distribution of Mn ions between Sr and Ti sites. Two microscopical magnetoelectric coupling mechanisms, which can be involved in all magnetoelectric systems based on incipient ferroelectrics, were proposed. In the first one, the electric field modifies the spin susceptibility via spin-strain coupling of Mn4+. The second mechanism concerns Mn pairs coupled by the position-dependent exchange interaction.
    Trvalý link: http://hdl.handle.net/11104/0192608