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国家自然科学基金(91022009)

作品数:3 被引量:9H指数:1
相关作者:唐金魁许公峰林双燕郭云南更多>>
相关机构:中国科学院更多>>
发文基金:国家自然科学基金更多>>
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Modulating the magnetic relaxation of lanthanide-based single-molecule magnets
2012年
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.
ZHANG PengZHANG LiXUE ShuFangLIN ShuangYanTANG JinKui
关键词:单分子磁体磁弛豫单离子各向异性镧系元素分子磁学
Polydentate-ligand-supported self-assembly of heterometallic T-shaped Co_4 Dy cluster showing slow magnetic relaxation被引量:1
2012年
A novel mixed-valent heterometallic pentanuclear CoⅢ3 CoⅡ Dy Ⅲ cluster has been rationally assembled taking advantage of a bifunctional ligand with o-vanillin and tripodal tris(hydroxymethyl)aminomethane units. This unique heterometallic cluster represents a rare example of T-shaped molecules exhibiting slow magnetic relaxation.
KE HongShanGUO YangZHAO LangTANG JinKui
关键词:HETEROMETALLIC
稀土单分子磁体的研究进展被引量:8
2010年
在信息存储和量子计算方面具有广阔应用前景的单分子磁体及相关研究中,应用各向异性显著的稀土离子以期提高单分子磁体自旋翻转能垒的研究倍受关注。本文综述了稀土单分子磁体的研究进展,并着重介绍了单核、三核及四核镝配合物单分子磁体的磁学性质。
林双燕郭云南许公峰唐金魁
关键词:单分子磁体稀土离子弛豫量子隧穿
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