化学学报 ›› 2015, Vol. 73 ›› Issue (11): 1091-1113.DOI: 10.6023/A15060376 上一篇    下一篇

综述

稀土单分子磁体 2016 Awarded

任旻, 郑丽敏   

  1. 南京大学化学化工学院 配位化学国家重点实验室 人工微结构协同创新中心 南京 210093
  • 收稿日期:2015-06-01 出版日期:2015-11-15 发布日期:2015-08-18
  • 通讯作者: 郑丽敏 E-mail:lmzheng@nju.edu.cn
  • 基金资助:

    项目受科技部量子调控重大科学研究计划(No. 2013CB922102)资助.

Lanthanide-based Single Molecule Magnets

Ren Min, Zheng Li-Min   

  1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093
  • Received:2015-06-01 Online:2015-11-15 Published:2015-08-18
  • Supported by:

    Project supported by the National Basic Research Program of China (No. 2013CB922102).

单分子磁体因其磁性双稳态和慢弛豫机制而在超高密度存储材料、自旋电子器件等领域具有潜在的应用. 稀土单分子磁体因为具有较大的磁矩和磁各向异性而成为近年来研究的热点话题. 目前有关稀土单分子磁体的综述都主要集中在它们的合成、结构及磁性能, 而在其它性质方面缺少深入而系统的研究. 因此, 本论文结合现有的研究成果, 围绕稀土单分子磁体的高翻转能垒、复杂的多弛豫机制、可调控的磁性以及多功能材料的四个特点进行了综述, 旨在更好的理解稀土单分子磁体的物理、化学本质, 为稀土单分子磁体的设计与调控提供思路.

关键词: 单分子磁体, 稀土, 弛豫机制, 调控, 光学, 多功能

Single-molecular magnets (SMMs) that display magnetic bistability and slow relaxation process have unique potential in ultrahigh-density memory components and spintronic devices. Lanthanide-based SMMs (Ln-SMMs) have sparked increasing interest recently due to the large magnetic moments and large magnetic anisotropy. A few reviews about lanthanide-based SMMs have been reported, which mainly focused on their syntheses, structures and magnetic properties. The present review concentrates on following aspects: (1) strategies of constructing Ln-SMMs showing high anisotropy energy barriers, (2) understanding the complex relaxation mechanisms, and (3) tunable magnetic dynamics and multifunctional properties of the lanthanide-based SMMs. The work will help us better understand the chemical and physical natures of the Ln-SMMs, and provides new routes in designing new lanthanide-based SMMs with interesting magnetic and multifunctional properties.

Key words: single molecular magnet, lanthanide, relaxation mechanism, tunable, optical, multifunction