报告介绍 Abstract： The combination of different nanobuilding blocks in a single heterostructure can lead to materials with improved properties by selecting components with the desired characteristics for a specific application. Carbon-based nanomaterials demonstrated to be highly suitable as support for the elaboration of heterostructures. Atomic layer deposition proved to be a technique of choice for the c...

报告介绍 Abstract： In this talk I will offer a unique insight into the publishing process of a high-impact energy journal, from the perspective of a recent energy researcher-turned-editor. I will first introduce Joule, the new high-impact energy journal from Cell Press, and our Editorial team. Next, I will motivate and demonstrate Joule’s strong interest in serving the energy research community in Chi...

报告介绍 Abstract： Metal atomic layers on semiconductor surfaces constitute of a unique family of two-dimensional (2D) electron system. The recent discovery of superconductivity in this class of atomic-layer materials offers fresh opportunities for studying 2D superconductors [1-4]. In this talk I will report on two recent developments in our group on this type of atomic layer superconductors. First, we fou...

报告介绍 Abstract： Functional nanoporous polymer membranes with expanded surface area can be applied in broad fields, including separation, filtration, catalysis and energy applications. There are a number of established methods for the preparation of nanoporous membranes using neutral or weakly charged polymers. However, fabrication of nanoporous polymer membranes from strong polyelectrolytes is far more d...

报告介绍 Abstract： 　　Efficient water oxidation catalysts are required for the development of water splitting technologies. Herein, we report the synthesis of layered hybrid transition metal phosphonate compounds from metal acetylacetonate precursors and various phosphonic acid in benzyl alcohol. The hybrid particles are formed by inorganic layers of divalent transition metals (e.g. Fe, Co, Ni) in distorte...

报告介绍 报告摘要： Metallic glasses (MGs) constitute a new class of metastable metallic materials with unique properties, including high strength, high elastic limit, high wear and corrosion resistance, and excellent soft magnetic behavior, and promising high catalysis efficiency, for structural and functional applications. Phase transformations, including devitrification, liquid-liquid phase transition, li...

报告介绍 Abstract： Recent experimental measurements of the transition path time distributions of proteins moving from the folded to the unfolded state and vice versa, presented theory with challenges. Analysis of the results suggested barrier heights that are much lower than the free energies of activation of the observed transitions. Secondly, the theory used was based on a strong friction model, why is su...

报告介绍 报告摘要： The physics of doped Mott insulators is at the heart of some of the most exotic physical phenomena in materials research including insulator-metal transitions, colossal magneto-resistance, and high-temperature superconductivity in layered perovskite compounds. Advances in this field would greatly benefit from the availability of new material systems with similar richness of physical pheno...

报告介绍 Abstract:Electrochemistry is used widely today, spanning from production of hydrogen and metals such as aluminium to Li-ion batteries. Our research programs focus on exploiting chemical/materials physics and physical/materials chemistry principles to understand charge transfer at the solid-gas and solid-liquid interface, which is used to design materials/processes and control the kinetics of (electr...

报告介绍

报告介绍 报告摘要： 以声波诱导光栅技术为手段，探讨光纤的矢量模式转换的选择定则以及动量匹配，从而实现具有波长可调谐、模式可切换的光场重构，方便地提供柱状矢量光束及涡旋光束等，进一步获得近场热点光源、远场同轴光源，并探讨在光谱检测、纳米成像等方面的应用。 报告人简介：　　梅霆，2000-2009年新加坡南洋理工大学终身教职；2009-2013年华南师大光电子材料与技术研究所所长、首席教授；2013年至今任西北工业大学理学院教授...

报告介绍 Biosketch：　　Professor Qian Niu obtained a B.S. from Peking University in 1981. He went to the University of Washington for graduate studies, and received his Ph.D. in physics in 1985. Now he is a Trull Centennial Professor of Physics at the University of Texas at Austin and a Qianren Professor in the International Center for Quantum Materials at Peking University. He has worked on the theories on...

报告介绍 报告摘要:　　马达蛋白是一类负责细胞内货物运输，细胞分裂等重要作用的分子机器。其功能失调会导致包括阿兹海默症在内的多种神经退行性疾病。目前，马达蛋白的工作机制还没有被完全理解。重要原因之一是因为大多数研究着眼于单个马达蛋白。然而马达蛋白功能的实现需要在不同尺度下的一系列协作。为了理解马达蛋白的协作性，我将使用最新的分子动力学模拟模型并结合理论计算去展开研究。研究结果从分子结构层面上解释了几类重要的马...

报告介绍 报告摘要： 　　Ferromagnetic chains grown on top of conventional superconductors (or, Yu-Shiba-Rusinov (YSR) chains) pose an interesting and promising platform for Majorana zero modes, which in turn is crucial in realizing feasible topological quantum computation. In this talk, I will first review the recent experimental and theoretical development of the study of Majorana zero modes in this platfor...

报告介绍 Abstract： I will present a few topics for a few recent methodology developments in our group for ab initio material simulations. These will include: the Wannier Koopmans Method (WKM) for density functional theory band gap calculations; the classical force field accelerated ab initio atomic relaxation; the ab initio Green-Kubo formula calculation of thermal conductivity; and carrier dynamics simulat...

报告介绍 报告摘要： 磁性斯格明子（skyrmion）是近几年在磁性合金中发现的由电子自旋形成的类“涡旋”状结构，具有尺寸小、类“粒子”特性，在电流的驱动下运动比电流驱动磁性材料的磁畴壁运动所需的电流密度小大约6个数量级， 从而在低能耗、高速度和高密度磁存储方面有潜在的应用前景而备受关注。 但目前存在的主要挑战包括：1）发现的材料种类少且磁转变温度很低；2） skyrmion存在的温度区间较窄且需要一个外磁场才...