二维 1T 相氧化铱中的反铁磁性

IF 1.1 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2024-01-05 DOI:10.1109/LMAG.2024.3350438

Charlie Jindrich;Qi Shao;Antonio Ruotolo

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引用次数: 0

摘要

理论研究表明，在二维（2-D）原子晶体中合成非磁性氧化物的逸散相时，可以表现出磁性秩序。在这封信中，我们报告了实验证据，证明氧化铱的二维可蜕变相具有非对称反铁磁行为，其中铱形成了三角形晶格。我们将二维纳米片形态晶体的磁行为与纳米颗粒形态晶体的磁行为进行了比较。在低温下，纳米片的磁矩超过了纳米颗粒的磁矩，同时矫顽力和剩磁坍缩，这表明纳米片过渡到了反铁磁相。纳米尺度的形态似乎在氧化物半导体的磁性行为中起着重要作用。

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Antiferromagnetism in Two-Dimensional, 1T-Phase Iridium Oxide

Theoretical studies show that metastable phases of nonmagnetic oxides could exhibit magnetic order when synthesized in two-dimensional (2-D) atomic crystals. In this letter, we report experimental evidence of a nontrivial antiferromagnetic behavior in a 2-D, metastable phase of iridium oxide in which iridium forms a triangular lattice. We compare the magnetic behavior of the crystals in the morphology of 2-D nanosheets with that of the same crystals in the morphology of nanoparticles. At low temperatures, the magnetic moment of nanosheets exceeds that of the nanoparticles while coercivity and remanence collapse, suggesting a transition to an antiferromagnetic phase. Morphology at the nanoscale seems to play a significant role in the magnetic behavior of oxide semiconductors.

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来源期刊

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.