Supercritical CO2-induced room-temperature ferromagnetism in two-dimensional MoO3−x†

Industrial Chemistry & Materials Pub Date : 2022-11-26 DOI:10.1039/D2IM00028H

Wei Liu and Qun Xu

引用次数: 0

Abstract

Two-dimensional (2D) magnetic semiconductors are crucial in spin-based information-processing technologies due to the combination of the strong 2D quantum, surface effects and the control of spin states. However, most experimental...

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二维MoO3−x†中超临界co2诱导的室温铁磁性

二维(2D)磁性半导体由于其强大的二维量子效应、表面效应和自旋态控制的结合，在基于自旋的信息处理技术中至关重要。然而，大多数用于调谐二维磁体的实验方法在低温下获得纯铁磁性。本文提出了一种利用超临界CO2实现二维MoO3−x缺陷丰富的纳米结构的缺陷工程策略，并根据超临界压力的变化，通过引入Mo5+离子获得并调整其室温铁磁性。在缺陷区，五配位[Mo5+O5]中心的存在可以实现铁磁有序，从而产生室温铁磁性。随着超临界压力的增加，超临界CO2更容易破坏Mo-O键，从而在所需的居里温度(>380 K)下实现铁磁性能的增强。MoO3−x体系中的磁响应更接近自旋电子学的扩展。关键词:超临界CO2;室温铁磁性;二维;MoO3−x。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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