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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Minulé semináře
Jindřich Kolorenč Anderson impurity model in an external magnetic field 29.05.2012 15:00
Stavíme nejintenzivnější laser pro uživatelský výzkum na světě – buďte s námi v týmu! 29.05.2012 09:30
František Máca The electronic and magnetic structure of Mn doped semiconductors and semimetals 22.05.2012 15:00
Martin Fibrich Seminář o laserových a optických technologiích na VŠB – TU v Ostravě 22.05.2012 12:45
Gustau Catalan "Flexoelectricity: What is it, and why does it matter" 18.05.2012 10:00
Victor V. Kukhtin JINR participation in ATLAS upgrade 17.05.2012 15:00
Wilfried Schranz Dynamic elasticity of materials 15.05.2012 15:00
Michael Sentef Theoretical Approaches to Time Domain Spectroscopies: Learning about Electrons, Lattice, Equilibria, and New States of Matter 15.05.2012 14:30
Prof. Hamid Oughaddou Growth of Silicene 14.05.2012 15:00
Pavel Augustinský Continuous-Time Estimators in Hybridization-Expansion Continuous-Time Quantum Monte Carlo 10.05.2012 14:00
Martin Fibrich Seminář o laserových a optických technologiích na ZČU v Plzni 10.05.2012 12:05
Martin Fibrich Seminář o laserových a optických technologiích na Masarykově univerzitě 09.05.2012 16:00
Ing. Štěpán Stehlík, Ph.D. Electrical potentials of nanodiamonds with different surface terminations evaluated by Kelvin probe force microscopy 09.05.2012 09:30
Carlito S. Ponseca Charge carrier dynamics in polymer solar cell materials probed by time resolved terahertz spectroscopy 03.05.2012 10:00
Oldřich Kepka, Martin Zeman Měření účinného průřezu produkce WW v experimentu ATLAS 27.04.2012 13:30
Martin Fibrich Seminář o laserových a optických technologiích 26.04.2012 15:00
Irinel Caprini Novel perturbation expansions in QCD and applications: a conformal mapping approach 26.04.2012 15:00
Falak Sher Synthesis and Properties of La/BiMnO3 Multiferroics 26.04.2012 10:00
Karel Rohlena Exotické technologie na ELI beamlines 25.04.2012 14:00
Jiří J. Mareš Využití Thompsonova-Lampardova teorému při měření specifických odporů 25.04.2012 10:00
Vladislav Pokorný Vertex corrections to the electrical conductivity of the disordered Falicov-Kimball model 24.04.2012 15:00
Amadeo L. Vázquez de Parga Graphene on Ru(0001): A nanostructured surface 24.04.2012 10:00
Prof. Dr. Beata Ziaja-Motyka Computer simulations of FEL-excited matter 23.04.2012 13:00
Pavel Středa Spin polarization of Bloch states and Hall currents in zinc-blend semiconductors 18.04.2012 10:00
Serge Nakhmanson Ab initio design of multifunctional materials with advanced properties: Goldstone-like states in a layered perovskite with constrained polarization 17.04.2012 10:00
Seminář o Scanning Microwave Microscopy 17.04.2012 10:00
Roland Winkler Emergent Electromagnetism in Bilayer Graphene 16.04.2012 11:00
Jakub Cúth Metoda unfoldingu v analýze nábojové asymetrie páru top kvarků 13.04.2012 14:10
Roman Lysák Nábojová asymetria v produkcii páru top kvarkov v experimente ATLAS 13.04.2012 13:30
Prof. A.P. Levanyuk Ferroelectric phase transitions in thin films, ferroelectric-paraelectric superstructures and small particles: effects of the depolarizing field 11.04.2012 15:00

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