无序 Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 和 112 型有序 NdBaMnFeO6-δ Perovskites 的对比磁特性

IF 4.3 3区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Aslam Hossain*, Artem R. Gilev, Premakumar Yanda, Vladimir A. Cherepanov, Kathiresan Sakthipandi, A. Sundaresan, E. A. Mukhanova, Alexander V. Soldatov and A. K. M. Atique Ullah*, 
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引用次数: 0

摘要

通过随温度和磁场变化的直流磁化测量,研究了无序 Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 和有序 NdBaMnFeO6-δ 包晶石的磁特性。磁感应强度的温度依赖性表明,无序 Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 样品在低于 185 K 的温度下会发生反铁磁有序化,而有序 NdBaMnFeO6-δ 包晶在整个考察温度范围内都表现出顺磁性状态。值得注意的是,无序样品即使在室温下也呈现出玻璃态,而在更高的外加磁场下,玻璃态转变为反铁磁态。无序 Nd0.5Ba0.5Mn0.5Fe0.5O3-δ/2 包晶石中的磁有序状态和结构有序 NdBaMnFeO6-δ 包晶石中的磁无序状态可归因于 Mn 氧化态的改变。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Contrasting Magnetic Characteristics of Disordered Nd0.5Ba0.5Mn0.5Fe0.5O3−δ/2 and 112-Type Ordered NdBaMnFeO6−δ Perovskites

Contrasting Magnetic Characteristics of Disordered Nd0.5Ba0.5Mn0.5Fe0.5O3−δ/2 and 112-Type Ordered NdBaMnFeO6−δ Perovskites

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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来源期刊
ACS Omega
ACS Omega Chemical Engineering-General Chemical Engineering
CiteScore
6.60
自引率
4.90%
发文量
3945
审稿时长
2.4 months
期刊介绍: ACS Omega is an open-access global publication for scientific articles that describe new findings in chemistry and interfacing areas of science, without any perceived evaluation of immediate impact.
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