室温铁磁性Fe3Se4纳米片的合成

IF 8.7 1区 化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Hongmei Zhang, Yani Jiang, Chen Yi, Bailing Li, Ziwei Huang, Di Wang, Kun He, Jingmei Tang, Biao Zhang, Zucheng Zhang, Shanhao Li, Liqiang Zhang, Dingyi Shen, Miaomiao Liu, Muhammad Zeeshan Saeed, Bo Li and Xidong Duan*, 
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引用次数: 0

摘要

铁基二维(2D)材料作为探索磁性、超导性和相变的最佳平台受到了广泛关注。在本研究中,我们通过化学气相沉积方法成功地在WSe2纳米片上制备了Fe3Se4纳米片。光学显微镜图像显示,Fe3Se4纳米片要么显示单一结构域,要么在WSe2纳米片上实现完全覆盖。磁输运测量显示磁电阻(MR)在120 K左右具有微弱的磁滞,其中正负MR值分别低于和高于该温度。这一现象归因于主导自旋特性的改变。另一个显著特征是在异常霍尔效应测量中观察到的滞后分支相交。此外,磁输运和振动样品磁强计结果表明,Fe3Se4纳米片在室温附近具有磁性。这些发现表明,Fe3Se4纳米片是开发节能逻辑器件的潜在候选者。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Synthesis of Fe3Se4 Nanoplates with Room-Temperature Ferrimagnetism

Synthesis of Fe3Se4 Nanoplates with Room-Temperature Ferrimagnetism

Fe-based two-dimensional (2D) materials have attracted considerable attention as an optimal platform for exploring magnetism, superconductivity, and phase transitions. In this study, we successfully fabricated Fe3Se4 nanoplates on WSe2 nanosheets via a chemical vapor deposition approach. Optical microscopy images disclose that Fe3Se4 nanoplates either display single domains or achieve complete coverage on the WSe2 nanosheets. Magneto-transport measurements exhibit a captivating crossover of magnetoresistance (MR) with feeble hysteresis around 120 K, where positive and negative MR values are respectively witnessed below and above this temperature. This phenomenon is ascribed to the alterations in the dominant spin characteristics. Another salient feature is the intersection of hysteresis branches observed in the anomalous Hall effect measurements. Moreover, both the magneto-transport and vibrating sample magnetometer outcomes suggest that Fe3Se4 nanoplates possess magnetic properties near room temperature. These findings imply that Fe3Se4 nanoplates are prospective candidates for the development of energy-efficient logic devices.

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来源期刊
ACS Materials Letters
ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
14.60
自引率
3.50%
发文量
261
期刊介绍: ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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