Fyzikální ústav Akademie věd ČR

Semináře

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

Po, 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

Út, 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

Pá, 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

Čt, 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
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
Dr. Jérôme Gaudin The European XFEL in Hamburg: current status 11.04.2012 13:30
Y.O. Kvashnin Ab initio study of 3d systems under high pressure 10.04.2012 15:00
Dr. Danijela Rostohar Development and applications of lasers: how to make a laser suitable for industrial application 10.04.2012 10:30
Prof. Andrzej Maziewski Spin Ordering and Magnetization Processes in Nanostructures: from Ultrathin Films to Multilayers 30.03.2012 10:00
B. Reischl Simulating atomic force microscopy of calcite in water 29.03.2012 16:00
Dr. Konstantin Zhuravlev Vznik excitonu, jeho transfer a rekombinace v polovodičových vrstvách a kvantových tečkách 28.03.2012 13:00
Jaroslav Bielčík Produkce těžkých kvarků v jaderných srážkách 23.03.2012 13:30
Caroline Curfs In-situ studies in Materials Science using high energy X-rays at the ESRF 22.03.2012 14:00
Ing. V. Petráková, Mgr. A. Kovalenko, prof. M. Nesládek Kvantové efekty v nanodiamantech a jejich uplatnění v nano/bio fotonice a detekci organických molekul 20.03.2012 10:00
Jörg Körner The way to next generation High Energy Class Diode Pumped Solid State Lasers 20.03.2012 10:00
Aude Sagnier Recent advances in laser diode pump engines for high power amplifiers 20.03.2012 10:00
Joachim Hein Status of the POLARIS Laser Project 20.03.2012 09:30
Vladimir I. Anisimov DFT+DMFT method and its applications to correlation effects in electronic structure of real materials 16.03.2012 14:00
Ing. Pavel Jelínek, Ph.D. Pokročilá charakterizace povrchů a nanostruktur s atomárním rozlišením pomocí rastrovacích mikroskopů 07.03.2012 15:00
Anna Kauch Spectral functions of correlated bosons in the dynamical mean-field theory 28.02.2012 15:00
Herve Grabas Frontier technologies in picosecond timing 24.02.2012 10:30
Marina Davydova Nová generace senzorů toxických plynů 21.02.2012 13:00
Antonín Klíč Mean-field Theory of Potts Glass Revised 14.02.2012 15:00

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