ε-Fe2O3: An Advanced Nanomaterial Exhibiting Giant Coercive Field, Millimeter-Wave Ferromagnetic Resonance, and Magnetoelectric Coupling
ε-Fe2O3: An Advanced Nanomaterial Exhibiting Giant Coercive Field, Millimeter-Wave Ferromagnetic Resonance, and Magnetoelectric Coupling
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DOI：
10.1021/cm101967h
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发表时间：
2010-10
影响因子：
8.6
通讯作者：
J. Tuček;R. Zbořil;A. Namai;S. Ohkoshi
中科院分区：
文献类型：
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作者：
J. Tuček;R. Zbořil;A. Namai;S. Ohkoshi
纳米氧化铁由于其应用前景广阔的特性，仍然吸引着科学界的极大关注。其中，e-Fe 2 O3构成了一个显着的相，在室温下，显着的铁磁共振，并在任何其他简单的金属氧化物相没有观察到的耦合磁电功能的巨大矫顽场感到自豪。在这项工作中，我们回顾了这种非凡的纳米材料的基本结构和磁性特征，重点是在过去几年的深入研究中提出的可疑和未解决的问题。我们展示了各种实验技术的组合如何带来重要和有价值的信息，关于理解Fe 2 O3的e-多晶型物的物理化学性质，这在很长一段时间内仍未被探索。此外，我们概括了一系列的合成路线，导致形成的e-Fe 2 O3，突出其优点和缺点。我们还演示了如何Magne...
Nanosized iron oxides still attract significant attention within the scientific community, because of their application-promising properties. Among them, e-Fe2O3 constitutes a remarkable phase, taking pride in a giant coercive field at room temperature, significant ferromagnetic resonance, and coupled magnetoelectric features that are not observed in any other simple metal oxide phase. In this work, we review basic structural and magnetic characteristics of this extraordinary nanomaterial with an emphasis on questionable and unresolved issues raised during its intense research in the past years. We show how a combination of various experimental techniques brings essential and valuable information, with regard to understanding the physicochemical properties of the e-polymorph of Fe2O3, which remained unexplored for a long period of time. In addition, we recapitulate a series of synthetic routes that lead to the formation of e-Fe2O3, highlighting their advantages and drawbacks. We also demonstrate how magne...