Magnetic Properties of the Bi0.65La0.35Fe0.5Sc0.5O3 Perovskite

A.V. Fedorchenko, E.L. Fertman, V.A. Desnenko, O.V. Kotlyar, E. Čižmár, V.V. Shvartsman, D.C. Lupascu, S. Salamon, H. Wende, A.N. Salak, D.D. Khalyavin, N.M. Olekhnovich (+3 others)
2017 Acta Physica Polonica. A  
Magnetic properties of polycrystalline multiferroic Bi0.65La0.35Fe0.5Sc0.5O3 synthesized under high-pressure (6 GPa) and high-temperature (1500 K) conditions were studied using a SQUID magnetometer technique. The temperature dependent static magnetic moment M was measured in both zero-field-cooled and field-cooled modes over the temperature range of 5-300 K in low magnetic field H = 0.02 kOe. The field dependent magnetization M (H) was measured in magnetic fields up to 50 kOe at different
more » ... at different temperatures up to 230 K after zero-field cooling procedure. A long-range magnetic ordering of the antiferromagnetic type with a weak ferromagnetic contribution takes place below TN ≈ 220 K. Magnetic hysteresis loops taken below TN show a huge coercive field up to Hc ≈ 10 kOe, while the magnetic moment does not saturate up to 50 kOe. A strong effect of magnetic field on the magnetic properties of the compound has been found. Below TN ≈ 220 K the derivatives of the initial magnetization curves demonstrate the existence of a temperature-dependent anomaly in fields of H = 15 ÷ 25 kOe. The nature of the anomaly is unknown and requires additional study.
doi:10.12693/aphyspola.131.1069 fatcat:bsir5ulpjjewbbmdjkzvx3rucy