Magnetic Diagram of the High-Pressure Stabilized Multiferroic Perovskites of the BiFe<sub>1-<i>y</i></sub>Sc<i><sub>y</sub></i>O<sub>3</sub> Series
Elena L. Fertman,
Alexey V. Fedorchenko,
Erik Čižmár,
Serhii Vorobiov,
Alexander Feher,
Yury V. Radyush,
Anatoli V. Pushkarev,
Nikolai M. Olekhnovich,
Andrius Stanulis,
Andrew R. Barron,
Dmitry D. Khalyavin,
Andrei N. Salak
Affiliations
Elena L. Fertman
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine (NASU), Nauky 47, 61103 Kharkiv, Ukraine
Alexey V. Fedorchenko
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine (NASU), Nauky 47, 61103 Kharkiv, Ukraine
Erik Čižmár
Faculty of Sciences, Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia
Serhii Vorobiov
Faculty of Sciences, Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia
Alexander Feher
Faculty of Sciences, Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia
Yury V. Radyush
Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus (NASB), P. Brovka 19, 220072 Minsk, Belarus
Anatoli V. Pushkarev
Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus (NASB), P. Brovka 19, 220072 Minsk, Belarus
Nikolai M. Olekhnovich
Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus (NASB), P. Brovka 19, 220072 Minsk, Belarus
Andrius Stanulis
Energy Safety Research Institute (ESRI), Bay Campus, Swansea University, Fabian Way, Swansea SA1 8EN, UK
Andrew R. Barron
Energy Safety Research Institute (ESRI), Bay Campus, Swansea University, Fabian Way, Swansea SA1 8EN, UK
Magnetic properties of the high-pressure stabilized perovskite BiFe1-yScyO3 phases (0.1 ≤ y ≤ 0.9) have been studied by means of magnetization measurements and neutron diffraction. The metastable perovskites of this series undergo irreversible polymorphic transformations upon annealing, the phenomenon referred to as conversion polymorphism. It has been found that the solid solutions with y ≥ 0.70 exhibit no long-range magnetic ordering regardless of their polymorph modification, while those with y ≤ 0.60 are all antiferromagnets. Depending on the scandium content, temperature and structural distortions, three types of the antiferromagnetic orderings, involving collinear, canted and cycloidal spin arrangements, have been revealed in the phases obtained via conversion polymorphism and the corresponding magnetic phase diagram has been suggested.
