{"title":"Synthesis of Two-Dimensional Antiferromagnetic Semiconductor CuFeS2 with a High Néel Temperature","authors":"Di Wang, Yingying Liu, Hua Zhang, Yong Liu, Dan Li, Zucheng Zhang, Ping Lu, Chen Yi, Kun He, Liqiang Zhang, Yanru Wang, Shanhao Li, Miaomiao Liu, Hongmei Zhang, Shula Chen, Zhihui Chen, Xidong Duan","doi":"10.1021/acs.nanolett.5c01088","DOIUrl":null,"url":null,"abstract":"Two-dimensional (2D) antiferromagnetic (AFM) semiconductors have garnered significant attention due to their promising applications in spintronics and intriguing magneto-optical performance. However, low Néel temperatures (<i>T</i><sub>N</sub>) and inadequate air stability constrain their application. Here, we report the synthesis of a 2D semiconducting CuFeS<sub>2</sub> (CFS) exhibiting AFM order. It features a high <i>T</i><sub>N</sub> (473.0 ± 0.4 K) and remains stable in air for at least 2 weeks. The semiconductor characteristics are confirmed via electrical measurements. AFM order and a high magnetic phase transition temperature are demonstrated by Raman and second-harmonic generation (SHG) spectra. This work provides a new 2D AFM semiconductor with a high Néel temperature, offering a novel platform for studying unconventional physical phenomena and spintronics.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"72 1","pages":""},"PeriodicalIF":9.1000,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Letters","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acs.nanolett.5c01088","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Two-dimensional (2D) antiferromagnetic (AFM) semiconductors have garnered significant attention due to their promising applications in spintronics and intriguing magneto-optical performance. However, low Néel temperatures (TN) and inadequate air stability constrain their application. Here, we report the synthesis of a 2D semiconducting CuFeS2 (CFS) exhibiting AFM order. It features a high TN (473.0 ± 0.4 K) and remains stable in air for at least 2 weeks. The semiconductor characteristics are confirmed via electrical measurements. AFM order and a high magnetic phase transition temperature are demonstrated by Raman and second-harmonic generation (SHG) spectra. This work provides a new 2D AFM semiconductor with a high Néel temperature, offering a novel platform for studying unconventional physical phenomena and spintronics.
期刊介绍：
Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including:
- Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale
- Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies
- Modeling and simulation of synthetic, assembly, and interaction processes
- Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance
- Applications of nanoscale materials in living and environmental systems
Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.
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