基本信息
浏览量:4
![](https://originalfileserver.aminer.cn/sys/aminer/icon/show-trajectory.png)
个人简介
Research Interests
There is intense academic and technological interest in magnetic nanostructures. Miniaturization leads to nanomagnets (< 100 nm) and to previously unimportant quantum effects that dramatically affect the functionality of nanomagnetic memory devices. Our discovery in 1993 of molecular nanomagnets, called single-molecule magnets (SMM), has made it possible to study systematically several fundamental questions about nanomagnets. In the case of a SMM, each molecule is a nanomagnet where the molecule has a large spin and magnetoanisotropy. A benchmark observation in the area of nanomagnets was made on a SMM, where it was shown that such a molecule can change from "spin-up" to "spin-down" not only by thermalizing over a potential-energy barrier, but also by quantum tunneling of the direction of magnetization. The mechanism of magnetization tunneling is under study by making systematic changes in molecule nanomagnets. Several new SMMs are being prepared to increase the blocking temperature and to find applications in magnetic memory devices, including quantum computing.
Electron transfer processes in chemical and biological systems can change markedly under varying environmental conditions. The study of mixed-valence transition metal complexes in the solid state gives fundamental information about the environment control of the rate of electron transfer between two metal ions. We are studying mixed-valence biferrocenes, dinuclear CuIICuI complexes, and trinuclear oxo-centered metal carboxylates. The architecture of these complexes is modified to determine the factors controlling the rate of electron transfer. The electronic and molecular structures are probed by EPR, IR, Mössbauer spectroscopies as well as magnetometry and X-ray crystallography.
The factors controlling the rate at which FeII or FeIII spin-crossover complexes interconvert between low- and high-spin states are being studied. Transition metal complexes with catecholate and/or o-semiquinonate ligands exhibit valence tautomerism. Dramatic changes in color and number of unpaired electrons accompany an intramolecular electron transfer between the metal and the redox-active o-quinone ligand and metal spin-state change.
研究兴趣
论文共 754 篇作者统计合作学者相似作者
按年份排序按引用量排序主题筛选期刊级别筛选合作者筛选合作机构筛选
时间
引用量
主题
期刊级别
合作者
合作机构
EPL (Europhysics Letters)no. 4 (2013)
引用0浏览0引用
0
0
引用0浏览0引用
0
0
mag(2011)
引用23浏览0引用
23
0
Inorganic Chemistryno. 8 (2011): 3841-3841
加载更多
作者统计
合作学者
合作机构
D-Core
- 合作者
- 学生
- 导师
数据免责声明
页面数据均来自互联网公开来源、合作出版商和通过AI技术自动分析结果,我们不对页面数据的有效性、准确性、正确性、可靠性、完整性和及时性做出任何承诺和保证。若有疑问,可以通过电子邮件方式联系我们:report@aminer.cn