Contrasting Magnetic Characteristics of Disordered Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 and 112-Type Ordered NdBaMnFeO6-δ
Aslam Hossain1, Artem R Gilev2, Premakumar Yanda3
1Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, Rostov-on-Don 344090, Russia.
Abstract:
The magnetic properties of disordered Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 and ordered NdBaMnFeO6-δ perovskites were investigated through temperature- and field-dependent DC-magnetization measurements. The temperature dependence of magnetic susceptibilities revealed that antiferromagnetic ordering occurs at temperatures below 185 K for the disordered Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 sample, whereas the ordered NdBaMnFeO6-δ perovskite exhibited a paramagnetic state throughout the entire temperature range examined. Notably, the disordered sample exhibited a glassy state, even at room temperature, which transformed into an antiferromagnetic state under higher applied magnetic fields. The magnetic ordering in the disordered Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 perovskite and the magnetic-disordering state in the structurally ordered NdBaMnFeO6-δ perovskite could be attributed to the alteration of the oxidation state of Mn.
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