Eur. Phys. J. B (2012) 85: 103
https://doi.org/10.1140/epjb/e2012-20693-2

Regular Article

Neutron powder diffraction and single crystal X-ray magnetic resonant and non-resonant scattering studies of the doped multiferroic Tb(Bi)MnO₃

¹ St. Petersburg Nuclear Physics Institute, 188300 Gatchina, St. Petersburg, Russia
² General Physics Institute RAS, 119991 Moscow, Russia
³ A.F. Ioffe Physico-Technical Institute RAS, 194021 St. Petersburg, Russia
⁴ Helmholtz-Zentrum Berlin fur Materialien und Energie, Glienicker Str. 100, 14109 Berlin, Germany

^a e-mail: golosov@mail.pnpi.spb.ru

Received: 24 August 2011
Received in final form: 15 November 2011
Published online: 26 March 2012

Abstract

The results of powder neutron diffraction, X-ray resonant and non-resonant scattering in Tb_0.95Bi_0.05MnO₃ demonstrate that substitution of Bi for Tb leads to partial suppression of intrinsic long-range magnetic order in the Tb sub-lattice, which transforms to correlated short-range order. The magnetic order in the Mn sub-lattice remains similar to that of TbMnO₃. In the Bi-substituted sample an anomaly in the temperature dependencies of the unit cell parameters was detected at about 100 K.