Fyzikální ústav Akademie věd ČR

Semináře

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

Pondělí, 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

Úterý, 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

Pátek, 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

Čtvrtek, 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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Daniel Klír Paprsky X po sto letech: moderní zdroje rentgenového záření 06.12.2012 16:15
Jeevaka Weerasinghe Terahertz Dielectric properties of (Ba,Sr)TiO3 systems from First principles 04.12.2012 10:00
Olivier Isnard Effect of hydrogen as interstitial element on the magnetic properties of iron rich intermetallic compounds: the case of YFe2 29.11.2012 14:00
Martin Fibrich Seminář o výzkumu a vývoji femtosekundových laserových systémů a pokročilých optických technologiích v Hradci Králové 29.11.2012 09:05
Karel Král Electron-phonon interaction in the photoluminescence of quasi-zero dimensional nanostructures 27.11.2012 15:00
Štěpán Huber Příprava a charakterizace dopovaného ZnO pro technické aplikace 22.11.2012 14:00
Jiří Limpouch Nejintenzivnější laser světa se staví v ČR 21.11.2012 15:30
Pavel Novák Calculation of crystal field parameters 15.11.2012 14:00
Martin Nikl Výzkum anorganických scintilačních materiálů ve Fyzikálním ústavu 14.11.2012 15:00
Jiří Chaloupka Magnetické uspořádání ve vrstevnatých iridátech typu Na2IrO3 08.11.2012 15:00
Pierre-Eymeric Janolin The twist and turns in perovskites 08.11.2012 10:00
Ilja Turek Ab initio theory of magnetic anisotropies in random tetragonal Fe-Co alloys 06.11.2012 15:00
prof. Toshiya Sakata In vitro biosensing with semiconductor-based platform 06.11.2012 10:00
Jaroslav Trnka Scattering Amplitudes and the Positive Grassmannian 05.11.2012 15:00
ELI Beamlines Studentský den 2012 05.11.2012 08:30
Jan Kuneš Electronic correlations in the vicinity of spin state transition 01.11.2012 14:00
Martin Fibrich Seminář o výzkumu a vývoji femtosekundových laserových systémů a pokročilých optických technologiích v Ústí n.L. 01.11.2012 13:00
Petr Čársky Determination of Structure of Diamond Nanoparticles by means of ab initio Calculations of Vibrational Excitation by Electron Impact 30.10.2012 15:00
Martin Fibrich Nejintenzivnější laser světa se staví v ČR 30.10.2012 14:00
Lothar Ley Colloquium Cukrovarnická 24.10.2012 10:00
Christian Maes It increases with time - what is it? 23.10.2012 15:00
Roberto Robles Electronic and magnetic properties of supported transition metal phthalocyanines 23.10.2012 10:00
Dr. Dieter Van Den Bleeken Scaling solutions and pure Higgs states 22.10.2012 15:00
Florian Loder Interface-superconductivity in the presence of Rashba spin-orbit coupling and magnetic fields 18.10.2012 15:00
Ivan Pelant Pokroky luminiscenční spektroskopie 17.10.2012 15:00
Leszek Jurczyszyn Theoretical studies of the adsorption and diffusion processes on W(111) and W(112) surfaces 16.10.2012 15:00
Ondřej Šipr, Juan Manuel Perez-Mato, Branton J. Campbell Magnetické struktury a jejich symetrie 15.10.2012 09:00
Jan Pšikal Seminář o laserových a optických technologiích na Slezské univerzitě v Opavě 11.10.2012 12:30
J. Tyler Green Seminář o laserových a optických technologiích na VUT v Brně 10.10.2012 14:00

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