物理学报2023，Vol.72Issue(24)：178-184,7.DOI:10.7498/aps.72.20231229
二维钒掺杂Cr2S3纳米片的生长与磁性研究
Growth and magnetic properties of two-dimensional vanadium-doped Cr2S3 nanosheets
摘要
Abstract
Two-dimensional magnetic materials are emerging materials developed in recent years and have attracted much attention for their unique magnetic properties and structural features in single-layer or few layers of atomic thickness.Among them,ferromagnetic materials have a wide range of applications such as in information memory and processing.Therefore the current research mainly focuses on enriching the two-dimensional ferromagnetic database and developing modification strategies for magnetic modulation.In this work,two-dimensional vanadium-doped Cr2S3 nanosheets successfully grow on mica substrates by atmospheric pressure chemical vapour deposition.The thickness and size of the nanosheet can be effectively regulated by changing the temperature and mass of vanadium source VC13 powder,with the temperature of 765 ℃ and the mass of 0.010 g as the most appropriate conditions for the growth of nanosheets.The nanosheets are also characterised by optical microscopy,atomic force microscopy,Raman spectroscopy,scanning electron microscopy,X-ray energy spectroscopy,and X-ray photoelectron spectroscopy,and the nanosheet is regular in shape,with flat surface and controllable thickness,and the high-quality vanadium-doped Cr2S3 nanosheet is prepared.Meanwhile,the magnetic characterisations of the doped samples show that the Curie transition temperatures of the vanadium doped samples change to 105 K,and the maximum magnetic moment point of 75 K in the M-T curve disappears after V doping,and from subferromagnetic material to ferromagnetic material,and the coercivity in the M-H curve also increases significantly,which proves that the vanadium doping can effectively regulate the magnetic properties of Cr2S3 nanosheets.These results are expected to advance the vanadium-doped Cr2S3 materials toward practical applications and become one of the ideal candidate materials for the next-generation spintronic applications.关键词
二维磁性材料/化学气相沉积/钒掺杂Cr2S3/铁磁性Key words
two-dimensional magnetic materials/chemical vapour deposition/vanadium-doped Cr2S3/ferromagnetism引用本文复制引用
杨瑞龙,张钰樱,杨柯,姜琦涛,杨晓婷,郭金中,许小红..二维钒掺杂Cr2S3纳米片的生长与磁性研究[J].物理学报,2023,72(24):178-184,7.基金项目
国家自然科学基金(批准号:52002232,12174237)、国家重点研发计划(批准号:2022YFB3505301)、山西省高等学校科技创新项目(批准号:2021L267)、山西省研究生教育创新项目(批准号:2021Y484)和山西师范大学研究生科技创新项目(批准号:2022XSY019)资助的课题.Project supported by the National Natural Science Foundation of China(Grant Nos.52002232,12174237),the National Key Research and Development Program of China(Grant No.2022YFB3505301),the Scientific and Technologial Innovation Programs of Higher Education Institutions of Shanxi Province,China(Grant No.2021L267),the Graduate Education Innovation Project of Shanxi Province,China(Grant No.2021Y484),and the Graduate Students of Science and Technology Innovation Project of Shanxi Normal University,China(Grant No.2022XSY019). （批准号:52002232,12174237）
