Unusual magnetic properties of the polar orthorhombic BiFe0.5Sc0.5O3 perovskite
authors Fedorchenko, AV; Fertman, EL; Salak, AN; Desnenko, VA; Cizmar, E; Feher, A; Vaisburd, AI; Olekhnovich, NM; Pushkarev, AV; Radyush, YV; Zarkov, A; Kareiva, A
nationality International
journal JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
author keywords Multiferroic perovskites; Magnetic susceptibility; Weak ferromagnetism; Glassy magnetic behavior
keywords FERROELECTRICITY; MULTIFERROICS; BISMUTH
abstract Magnetic properties of new multiferroic BiFe0.5Sc0.5O3 perovskite which exists in two different orthorhombic polymorphs, the antipolar Pnma and the polar Ima2, were studied using a SQUID-magnetometer technique in magnetic fields up to 50 kOe in the temperature range of 5-300 K. Both polymorphs show a weak ferromagnetic component below the Neel temperature, T-N similar to 220 K. A wide cusp-like anomaly of the temperature dependent magnetic susceptibility was revealed below 200 K. The anomaly is dependent on the magnetic field applied and can be associated with the glassy magnetic behavior of the compound. The best fit of the initial magnetization curves taken at each temperature can be obtained as a sum of two contributions, namely the nonlinear in field and the linear one. The nonlinear contribution appeared to be temperature and magnetic field dependent, which is in a good agreement with the magnetization experimentally obtained as a function of temperature in different magnetic fields applied. Increase of external magnetic field leads to a decrease of the nonlinear contribution to the total magnetic moment
publisher ELSEVIER SCIENCE BV
issn 0304-8853
year published 2018
volume 465
beginning page 328
ending page 332
digital object identifier (doi) 10.1016/j.jmmm.2018.06.015
web of science category Materials Science, Multidisciplinary; Physics, Condensed Matter
subject category Materials Science; Physics
unique article identifier WOS:000446439300047
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