Fyzikální ústav Akademie věd ČR

Seminars

Nucleation and growth of twins during fracture of a fine grained magnesium alloy

Mon, 15/09/2014 - 10:00

Prof. Alok Singh (Structural Materials Center, National Institute for Materials Science Tsukuba, Japan)

Twinning is an important mode of deformation in magnesium and its alloys. Twins also play an important role in the fracture of the alloys, by stress concentration of dislocations on the twin boundaries of the common {10-12} type twins, or formation of {10-11}-{10-12} double twins. Dislocations also play important role in nucleation and growth of twins. Nucleation of twins and double twins, mainly {10-12} type, has been subject of a number of studies, experimental as well as computational. In this study, nucleation of {10-11} type twins has also been studied.

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Simulations of electron transport phenomena in single-molecule junctions

Tue, 16/09/2014 - 10:00

Thomas Frederiksen (Donostia International Physics Center (DIPC), Donostia-San Sebastian, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao, Spain)

Single-molecule devices are ideal test beds for studying a range of quantum transport phenomena, and new insights are obtained through critical comparison between experiments and theoretical models.

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Femtosecond laser-induced periodic surface structures

Fri, 19/09/2014 - 15:00

Jörn Bonse (BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, D-12205 Berlin, Germany)

During the past few years significantly increasing research activities in the field of laser-induced periodic surface structures (LIPSS, ripples) have been reported since the generation of LIPSS in a single-step process provides a simple way of surface nanostructuring towards a control of optical, mechanical, or chemical surface properties.

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Diamond Field Effect Transistors with high-k gate insulator

Thu, 09/10/2014 - 10:00 - 11:00

Yasuo Koide (Network and Facilities Services Division; Wide Bandgap Materials Group, Optical and Electronic Materials Unit, National Institute for Materials Science (NIMS), Japan)

Diamond has an attractive interest as one of next-generation power electronics materials. Since the sheet hole density in the hydrogenated-diamond surface was reported to be as high as 1E14 cm-2 which was one or two orders larger than other semiconductors. Therefore, we should use such the big advantage and then have to develop the high-k gate dielectric for diamond in order to control the high-density hole carrier.

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Past Seminars
Mateusz Mrukiewicz Dual-frequency nematic liquid crystals 15.10.2013 10:00
Jiří Kvita Differential spectra for t-tbar events in the ATLAS experiment 10.10.2013 14:00
Jan Kuneš Off-diagonal order in materials close to spin-state transition 08.10.2013 15:00
Héctor Vázquez Electron transport in molecular systems 08.10.2013 10:00
Martin Schnabl Stringy and higher-spin activities in the theory department 03.10.2013 14:00
Vladislav Pokorný Spectral and transport properties of a superconducting quantum dot system 01.10.2013 15:00
Prof. Makoto Konagai Research and Development of Innovative Solar Cells – Establishing Global Research Centers 27.09.2013 10:00
Vladislav Pokorný Spectral and transport properties of a superconducting quantum dot system 26.09.2013 14:00
Isodiana Crupi Plasmonic metal nanoparticles for thin film solar cells 24.09.2013 10:00
Alexander Kupčo News from the EPS 2013 conference 19.09.2013 14:00
Cedric Rocha Leao Ab-initio investigation of the degradation process in TlBr: causes and possible fixes 18.09.2013 15:00
Pavel Novák Calculation of crystal field parameters with Wannier functions 12.09.2013 14:00
Christophe Ballif Thin film silicon layers: from low cost thin film solar modules to high efficiency crystalline heterojunction cells 11.09.2013 10:00
Jose Repond Imaging Calorimetry for Lepton Colliders 05.09.2013 14:00
Anna Artmenko XPS analysis of plasma polymers and nanocomposite films without breaking vacuum 03.09.2013 13:00
James P. Lewis High-throughput computational design of photocatalytic materials 03.09.2013 10:00
Prof. A. Nikitin Integrable models with matrix potentials 26.08.2013 15:00
Dr. Ingo Dirnstorfer Synergies between photovoltaics and microelectronics 19.07.2013 10:00
Prof. R. Gopakumar Minimal Model Holography 18.07.2013 15:00
Prof. Dr. N. J. Ianno Band Gap Engineering of Samarium Cerium Sulfide Alloys for Photovoltaic Thin Films 17.07.2013 13:30
Prof. Dr. R. J. Soukup The Promise of Earth Abundant Sulfide and Selenide Thin Films for Solar Cell Applications 17.07.2013 13:00
Deepak Verma, Ph.D. Hybrid (Organic/Inorganic semiconductors) absorbing layer for solar cell applications 16.07.2013 10:00
Vladislav Šimák What have we learned from Tevatron 27.06.2013 14:00
Prof. David Vanderbilt First-principles theory of flexoelectricity 27.06.2013 10:00
Jakub Železný DFT calculations of electronic and magnetic structure of CuMnAs and other I-Mn-V compounds 25.06.2013 15:00
Prof. Nadezhda M. Bulgakova, PhD, Dr.Sci. Pulsed laser - matter interaction for material processing: Basic processes and perspectives 20.06.2013 11:00
Arthur Moraes On the trail of LHC discoveries: scientific advances that accelerate more than sub-atomic particles 19.06.2013 14:00
Dr. Gilles Cheriaux Apollon-10P: Status and implementation 18.06.2013 14:00
Prof. A. Zhukov Magnetic properties and applications of soft magnetic microwires 14.06.2013 10:00
Jiří Hejbal Measurement of W+W- bosons production cross section in the ATLAS experiment 13.06.2013 14:00

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