报告介绍 Abstract:　　Electron transport through nanoscale systems such as molecular junctions in the presence of coherent light is a fundamental subject in chemical physics and nanotechnology. In this talk, first, I would like to give a brief overview of quantum transport and introduce several key concepts in electron transport in a time-periodic (ac) field including photon-assisted tunneling and coherent d...

报告介绍 2018复杂体系计算统计力学研讨会（2018年12月7—10日）会议详细日程12月8号（周六）理化大楼一楼科技展厅  8:25-8:30开幕式   Session I主持人 侯中怀  中国科学技术大学8:30-9:10崔强 波士顿大学 Exploring Membrane Remodeling by Protein and Nanoparticles9:10-9:22郑小燕 北京理工大学 Kinetics-Controlled Amphiphiles Self-Assembly Processes9:22-9:34韩伟  北京大学...

报告介绍 Abstract： In several limits of approximation, an efficient low-scaling hierarchy of coupled cluster (CC) electronic structure methods has been established, such as the alternatives within the framework of projected atomic orbitals, orbital-specific-virtual (OSV), pair-nature-orbital (PNO) and so on. These methods have been demonstrated to often achieve chemical accuracy with significantly reduced C...

报告介绍 报告摘要：　　传统块体材料制备和表征手段效率低下，限制了热电新材料的研发速度。本报告中，我们介绍了利用准连续成分块体材料进行热电材料快速筛选的新思路。通过研究和开发梯度成分原料棒自动化制备、梯度成分块体热电材料快速制备、样品成分离散化处理、以及电热输运性能快速检测等技术，发展出一套适用于新型热电材料探索的快速制备与表征一体化技术。该技术能够快速准确构建样品不同区域的成分-结构-性能之间关系，从而有效地...

报告介绍 报告摘要：　　由于低维磁性材料具有很多新奇的特性，它们在将来高技术领域（如电子自旋器件、量子计算机等）具有广泛的潜在应用。低维磁性材料的一个重要参量是磁各向异性，因为它决定了其自旋的取向和稳定性。普通情况下，低维磁性材料的磁各向异性较小，相应的磁各向异性能仅几个毫电子伏，导致自旋取向在较低温度下就会因热涨落而发生不可控的随机翻转。因此，如何提高及调控低维磁性材料的磁各向异性是纳米自旋电子学领域一个重...

报告介绍 报告摘要： 本报告将介绍上海微系统所在石墨烯单晶晶圆和石墨烯/超导异质结方面的工作。石墨烯方面的工作包括Cu85Ni15合金衬底局域通碳实现单核石墨烯控制生长，蓝宝石衬底（蓝宝石/ Cu85Ni15）实现低温石墨烯取向外延以及半导体Ge（110）衬底上的石墨烯取向外延。石墨烯/超导异质结工作包括超薄石墨烯/Bi2112 (Bi2Sr2Ca1Cu2Ox)异质结的超导电性，Ge基石墨烯/锡超导纳米岛异质结的双量子临界点现象以及BN/NbSe2/石墨烯异质结的超导紧...

报告介绍 Abstract： Orbital magnetism is key for electrical and optical control of magnetic properties, and spin magnetism is also of orbital nature on the fundamental level. In this talk, I will present an intuitive semiclassical theory of orbital magnetism, and show how geometric and topological effects play their roles in magnetization, susceptibility, and Landau level quantization. Biosket...

报告介绍 Abstract： The scanning tunneling microscope is an amazing tool because of its atomic-scale spatial resolution. This can be combined with the use of low temperatures, culminating in precise atom manipulation and spectroscopy with microvolt energy resolution. In this talk we will apply these techniques to the investigation of the quantum spin properties of magnetic atoms sitting on thin insulating fi...

报告介绍

报告介绍 Abstract： I will discuss a general quantum kinetic theory of linear response to an electric field which includes the inter-band coherence response and the Bloch-state repopulation response on an equal footing [1], followed by the magneto-transport of Weyl metals that results from chiral anomalies. Our theory explicitly accounts for the dependence of chiral anomalies on weak inter-pocket scattering,...

报告介绍 Abstract： Curious observations can often inspire people to come up with new hypotheses and define new problems in research. I will share a few such discoveries from my research and teaching, connecting materials innovations to problems observed in ordinary people’s life. (1) A problem encountered in water marbling art inspired a new technique of Langmuir-Blodgett assembly of colloidal particl...

报告介绍 Abstract： Orbital magnetism is key for electrical and optical control of magnetic properties, and spin magnetism is also of orbital nature on the fundamental level. In this talk, I will present an intuitive semiclassical theory of orbital magnetism, and show how geometric and topological effects play their roles in magnetization, susceptibility, and Landau level quantization. Biosket...

报告介绍 Abstract： The plasmonic response of quantum-sized nanoparitcles (NPs) exhibit interesting features that cannot be described by classical electrodynamics. In particular, the near-field distributions are modified by local environments, which strongly impact near-field spectroscopy. We developed an atomistic electrodynamics model to simulate the plasmonic responses of metal nanoparticles. This model p...

报告介绍 Abstract： An overview is givenon our recentmeasurements with extreme precision on single or few cooled ions stored in Penning traps. On the one hand, mass measurements provide crucial information for atomic, nuclear and neutrino physics as well as for testing fundamental symmetries. On the other hand, g-factor measurements of the boundelectron in highly-charged hydrogen-like ions allow for the dete...

报告介绍 报告摘要：　　角分辨光电子能谱(ARPES)是一种基于爱因斯坦光电效应的实验技术。随着同步辐射x光以及极紫外激光的发展，在过去的二三十年里，ARPES的能量和动量分辨率得到了极大的提高。它作为一种高能量和动量分辨的光电子能谱技术不仅能够直接测量晶体中电子能带结构还可以测量电子与其他元激发之间的相互作用，在新颖量子材料的物理研究中发挥了巨大的作用。我们课题组基于ARPES，并结合薄膜生长、磁性测量等手段，对一些具有新颖...

报告介绍 报告摘要：　　钙钛矿氧化物具有丰富的磁电特性，以及晶格，自旋等多种序参量之间的耦合，是凝聚态物理和信息存储材料研究的热点。而氧化物异质界面由于应力，电荷转移等现象的共存，展现出奇异的物理特性。本次报告以镧锶锰氧/钛酸锶界面为典型研究体系，主要介绍非本征因素（氧空位）和本征因素（氧八面体重构）以及电荷转移带来的镧锶锰氧界面性质变化，为从多角度调控界面特性，优化器件性能提供了思路。另外，作为钙钛矿氧化物...