高配位3d过渡金属单离子磁体磁各向异性研究
Magnetic Anisotropy of High-Coordinated 3d Transition-Metal Single-Ion Magnets
作者单位E-mail
崔会会 南通大学化学化工学院, 南通 226019  
孙同明 南通大学化学化工学院, 南通 226019  
王淼 南通大学化学化工学院, 南通 226019 wangmiao@ntu.edu.cn 
陈磊 江苏科技大学环境与化学工程学院, 镇江 212003 chenlei@just.edu.cn 
汤艳峰 南通大学化学化工学院, 南通 226019 tangyf@ntu.edu.cn 
摘要: 单离子磁体(SIMs)因其磁性双稳态和慢弛豫机制而在高密度信息存储、量子计算和分子自旋电子学等方面具有潜在的应用价值。其中3d过渡金属单离子磁体(3d-SIMs)磁构关系较为简单且易于分析,因此得到了众多研究者的关注。目前文献上报道的大多数3d-SIMs通常具有较低的配位数,而对于高配位(七配位和八配位)的3d-SIMs缺少深入而系统的研究。我们结合近年来的研究成果,从磁各向异性的基本性质、实验表征和理论计算3个方面出发,对高配位3d过渡金属单离子磁体的配位环境、磁各向异性和慢磁弛豫行为进行了综述,分析了配位构型和配位原子等配位环境对高配位3d过渡金属单离子磁体磁各向异性的影响,为高配位3d过渡金属单分子磁体的设计与调控提供思路。
关键词: 3d过渡金属离子  单离子磁体  磁各向异性  高配位
基金项目: 国家自然科学基金(No.21776140)资助。
Abstract: For its magnetic bistability and slow relaxation process, single-ion magnets (SIMs) have unique potential applications in high-density information storage, quantum computation and molecular spintronics. 3d transitionmetal-based single ion magnets (3d-SIMs) have attracted intensive interest because of their simple structure, easily exploring the magneto-structural relationship. Up to now, most of the 3d-SIMs reported in the literature usually have low coordination numbers, while knowledge on the high-coordinated (sevenand eight-coordinated) 3d-SIMs is still quite limited, especially for its efficient design and controllable manipulation. This project investigates the singleion magnetic anisotropy from three aspects, including basic properties, experimental characterization and theoretical calculation. Based on the research results in recent years, we summarize the coordination environment, magnetic anisotropy and slow magnetic relaxation behavior of the high-coordinated 3d-SIMs, and analyze the influence of the coordination environment, including coordination geometry and coordinated atoms, on the magnetic anisotropy of highcoordinated 3d-SIMs. This work will provide new routes in designing new high-coordinated 3d-SIMs with excellent properties.
Keywords: 3d transition metal ion  single-ion magnet  magnetic anisotropy  high-coordinate
投稿时间:2020-07-10 修订日期:2020-12-03
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崔会会,孙同明,王淼,陈磊,汤艳峰.高配位3d过渡金属单离子磁体磁各向异性研究[J].无机化学学报,2021,37(2):193-205.
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