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Modulating the magnetic relaxation of lanthanide-based single-molecule magnets
  • ISSN号：1001-6538
  • 期刊名称：Chinese Science Bulletin
  • 时间：2012.7.7
  • 页码：2517-2524
  • 分类：O511[理学—低温物理;理学—物理] TM27[电气工程—电工理论与新技术;一般工业技术—材料科学与工程]
  • 作者机构：[1]State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China, [2]College of Chemistry and Chemical Engineering,Inner Mongolia University,Hohhot 010021,China
  • 相关基金：supported by the National Natural Science Foundation of China（91022009 and 20921002）
  • 相关项目：自旋手性新型分子信息存储材料
作者： Zhang, Peng|Zhang, Li|Xue, ShuFang|Lin, ShuangYan|Tang, Jinkui|
关键词： 单分子磁体, 磁弛豫, 单离子各向异性, 镧系元素, 稀土, 调制, 量子隧道, 分子磁学, lanthanide； single-molecule magnets； relaxation dynamics； quantum tunneling； magnetic coupling
中文摘要：

在分子的磁力的区域，因为他们的大精力障碍和高测量磁滞现象温度，包含 lanthanide 元素的单个分子磁铁(SMM ) 具有巨大的科学、工艺的兴趣。尽管在基于 lanthanide 的 SMM 的合成和描述有重要进步，例如，仍然有挑战 lanthanide 元素的单个离子的 anisotropy 怎么，并且怎么能被利用磁化的零地的通道能被压制。这篇文章为 modulating 在各种各样的方法论被奉献给进步磁性的松驰，特别以水晶地和磁性的相互作用。晶体领域在与大部分各向异性的 f 元素创造单个分子的磁铁起一个主导的作用，当在磁性的中心之间的强壮的联合能高效地压制磁化的量通道时。

英文摘要：

In the area of molecular magnetism,single molecule magnets （SMMs） containing lanthanide elements are of immense scientific and technological interest because of their large energy barriers and high measured hysteresis temperature.Although there has been significant progress in the synthesis and characterization of lanthanide-based SMMs,there are still challenges,for instance,how single-ion anisotropy of lanthanide elements can be exploited,and how zero-field tunneling of magnetization can be suppressed.This article is devoted to the progress in various methodologies for modulating magnetic relaxation,especially in terms of crystal field and magnetic interactions.The crystal field plays a dominant role in creating single-molecule magnets with largely anisotropic f-elements,while the strong coupling between magnetic centers is able to suppress quantum tunneling of magnetization efficiently.

同期刊论文项目
新型稀土功能材料的研究与应用
期刊论文 20 获奖 14
自旋手性新型分子信息存储材料
期刊论文 55
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