Molecular Magnets · Functional Clusters · Hybrid Semiconducters · Medical Magnetic Nanomaterials and Metal Medicine(医用纳米磁珠/金属药物)· ​​​​​​​Biological Analysis

(1.)Basic Information

                                           Yan-Zhen Zheng(郑彦臻)

                                        Ph.D. Professor of Chemistry

(3.)Education

Sep/2011– Present       Professor, Lab Director, Associate Dean
                                   Frontier Institute of Science and
                                   Technology (FIST),
                                   Xi'an Jiaotong University, China

Sep/2009– Aug/2011    Marie Curie Fellow
                                   School of Chemistry,
                                   University of Manchester, United Kingdom

May/2007–Aug/2009     Postdoctoral Research Associate
                                   Department of Chemistry,
                                   RWTH Aachen University, Germany

Nov/2007–Apr/2009      Alexander von Humboldt Fellow
                                   Institute of Inorganic Chemistry,
                                   University Karlsruhe (TH), Germany

Sep/2002–Jul/2007       Ph.D. in Inorganic Chemistry
                                   Sun Yat-Sen University (SYSU), 
                                   Guangzhou, China

 

Honors

 

1. Distinguish Lectureship for International Symposium

2. Marie Curie International Incoming Fellowship

3. Alexander von Humboldt Fellowship  

 

联系方式

Frontier Institute of Science and Technology(FIST)
Xi'an Jiaotong University,   No. 99,  Yanxiang Road
Xi'an, 710054,  P. R. China
E-mail: zheng.yanzhen@xjtu.edu.cn

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(2.)Positions

 

​​​​​1.​​​​​​​​​​​​​​​​​​​​​A Study of Cation-Dependent Inverse Hydrogen Bonds and Magnetic Exchange-Couplings in Lanthanacarborane Complexes

Peng-Bo Jin#, Qian-Cheng Luo#, Yuan-Qi Zhai, Yi-Dian Wang, Yan Ma, Lei Tian, Xin-Liang Zhang, Chao Ke, Xu-Feng Zhang, Yi Lv, Yan-Zhen Zheng*

iScience, 2021 24(7), 102760.​​​​​​​ LINK

 亮点:    1. 镧系碳硼烷配合物中存在阳离子依赖的“反氢键”。

                2. 镧系碳硼烷二聚体通过“反氢键”的组装是可逆的。

                3. 这种键的平均键能大于24kJ/mol。

                4. 这种“反氢键”构筑出的镝基双核配合物是单分子磁体。

2.Vibronic barrier effect of magnetic relaxation in single-molecule magnets
Yuan-Qi Zhai and Yan-Zhen Zheng*

J Mater Chem C. 2021. 9, 8096-8098. Link

 

亮点:

单分子磁体是由磁性中心和有机配体组成的一系列配合物,而自旋和局域振动模式之间的耦合是磁弛豫的关键。由于自旋-声子耦合引起的振动势垒最近被证明为低于势垒弛豫和异常低的拉曼指数提供了解释,这两个难题已经困扰众多研究人员了几十年,并在许多实验中普遍存在。两项研究(Phys. Rev. Lett. 2020, 125, 117203  Phys. Rev. B 2021, 103, 014401)阐明了它们是多光学声子辅助拉曼过程的结果,介绍了这种弛豫机制的要点和广泛含义。该理论以量子方式统一理解了不同磁弛豫过程,也适用于更一般的体系。

 

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3.Anisotropic magnetocaloric effect in a dysprosium(III) single-molecule magnet - Commemorating the 100th anniversary of the birth of Academician Guangxian Xu

You-Song Ding and Yan-Zhen Zheng*

J. Rare Earth. 2021. DOI: 10.1016/j.jre.2021.03.005. Link

 

亮点:具有高磁各向异性的镝化合物作为单分子磁体被广泛研究。本文用单晶方法研究了DyIIISMM {[Dy(OSiMe3)2(4-Mepy)5(BPh4)]0.5Toluene}中的各向异性磁热效应。由于高磁各向异性,在300 K时可以观察到角磁化。沿易轴方向测量的SMM行为与多晶样品相同。从易磁化轴到难磁化平面的旋转磁化19 KB= 5T时产生的最大磁熵变为3.05 kJ/kgK,使DyIIISMM可用作低温旋转磁制冷剂。

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主要任职