报告介绍

报告介绍 In my talk I will present a general overview of the business of Nature Publishing Group, which includes the Nature journals, but also a number of other ventures. I will then describe the editorial policies of Nature Materials, which are shared by all journals from the Nature family. Based on these, strategies are presented on how to interact with our editorial office, and I will also provide brief t...

报告介绍 Electron Momentum Spectroscopy (EMS) is a powerful “orbital imaging” technique, which enables direct experimental reconstructions of one-electron transition momentum densities associated to specific ionization channels. In this talk, we will illustrate for a number of cases treated by our group over the last 10 years how a proper analysis of EMS experiments gives insight in momentum spac...

报告介绍 In this talk we will discuss in some computational and analytical details the issue of half-metallicity in zig-zag graphene nanoribbons and nanoislands of finite width, i.e. the coexistence of metallic nature for electrons with one spin orientation and insulating nature for the electrons of opposite spin, which has been recently predicted from so-called first-principle calculations employing Density...

报告介绍 Graphene-based materials are promising because of their electronic and thermal transport, mechanical properties, high specific surface area, that they can act as an atom thick layer, barrier, or membrane, among other reasons. Our micromechanical exfoliation approaches [1,2] conceived of in 1998 yielded multilayer graphene and one paper described in detail how monolayer graphene could be obtained [1]...

报告介绍 Prof. Vasyutinskii is famous because of his researches about the stereodynamics and vector correlations in chemical and photochemical reactions. He suggested and recorded for the first time the effect of spin-orientation atomic photofragments produced in molecular dissociation. He also developed a rigorous quantum mechanical approach to treating angular momentum polarization in photodissocation and ...

报告介绍 报告摘要：After a brief review of integrated circuit development trends, special attention is given to MOSFET scaling over the years and today’s challenges, including the issues of power consumption, process parameter variation, short-channel effect etc., are described. The importance of strained Si methods for enhancing MOSFET performance and of high-k metal gate for reducing power consumptio...

报告介绍 摘要：New scientific phenomena and processes that have emerged in the area of nanoscience and nanotechnology could provide either revolutionary or novel solutions to the energy, environmental, and sustainable mobility challenges.As an exciting material, graphene has high intrinsic mobility, high Young’s modulus and thermal conductivity.1 With high optical transmittance and good electrical cond...

报告介绍 摘要：Fluorescence microscopy is a widely used imaging method in biological research due to its noninvasive nature and molecular specificity. The resolution of conventional fluorescence microscopy is limited to a few hundred nanometers by the diffraction of light, leaving many biological structures too small to be optically resolved. Stochastic Optical Reconstruction Microscopy (STORM) technique ove...

报告介绍 such conformal solar cell designs exceed the classical 4n2 limit of absorption, for a randomized Lambertian back-reflector – a limit till recently considered the limit for light trapping enhancement. The combination of photonic and plasmonic effect leads to enhancement of absorption of >50% for a 1micron thick nanocrystalline Si-based solar cell, beyond the 4n2 limit. Such photonic-plasmoni...

报告介绍 Iron-based multiferroics such as BiFeO3 and LuFe2O4 exhibit the highest magnetic and ferroelectric ordering temperatures among known multiferroics. LuFe2O4 is a frustrated system with several phase transitions that result in electronically driven multiferroicity. To understand how this peculiar multiferroic mechanism correlates with magnetism, we studied electronic excitations by optical spectroscop...

报告介绍 Periodic nanoporous materials are a group of materials with periodically arranged nanosized pores. These materials are typically synthesized through a self-assembly approach with micelles acting as a structure-directing agent. A prototype of such materials is periodic mesoporous silica (PMS). In this talk, I will first discuss the atomic and nanoscale structures of PMS as characterized by small and ...

报告介绍

报告介绍 Abstract:Quantum optical investigations on self-assembled quantum dots have enabled incredible progress in the quest for spin-based quantum information processing in recent years. State initialisation, manipulation and readout have all been demonstrated with a promising degree of fidelity. I will first present a selected overview of recent work on the optical control of spins, and then proceed to di...

报告介绍 At present, most of our energy comes from liquid fuels. The viscosity plays a very important role in liquid fuel production, transportation, and conservation. Reducing the viscosity of crude oil is the key for oil extraction and its transportation from off-shore via deep water pipelines. Currently, the dominant method to reduce viscosity is to raise oil’s temperature, which does not only requi...

报告介绍