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Articles

Magnetic phase transitions in solid solutions of Fe-containing perovskite multiferroics

, , , , , , , , & show all
Pages 36-44 | Received 29 Aug 2018, Accepted 26 Nov 2018, Published online: 09 Jul 2019
 

Abstract

Concentration dependences of magnetic phase transitions temperatures TM for several solid solutions of perovskite multiferroics BiFeO3, PbFe1/2Nb1/2O3 (PFN), and PbFe0.5Sb0.5O3 (PFS) have been studied using Mössbauer spectroscopy. In all the solid solutions studied, the values of TM were found to depend not only on the concentration of the Fe3+ ions in the lattice, but also on the short-range and/or long-range ordering of Fe3+ and B5+ ions, as well as on the mean lattice parameter values and on the nontrivial magnetic superexchange involving the empty p-orbitals of Pb2+ and Bi3+ cations.

Additional information

Funding

This study was partially supported by RFBR (project 18-52-00029 Bel_a), Belarussian Republican Foundation for Fundamental Researches (grant T18R-048), and by the Ministry of Education and Science of the Russian Federation (projects 3.1649.2017/4.6 and 3.5346.2017/8.9). IPR acknowledges the support from the CAS President’s International Fellowship Initiative through the project 2018VEA0011.

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