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
Ing. Martin Smrž, Ph.D. Speciální druhy laserů – optické parametrické generátory, ramanovské lasery 15.04.2013 09:30
Ing. Michal Nevrkla RTG záření: Detekce a aplikace 12.04.2013 13:05
J. Kaštil Magnetic properties and magnetocaloric effect of Co substituted Mn rich Ni2MnGa 11.04.2013 14:00
Šárka Todorova Hadronizace a lundský fragmentační model 11.04.2013 14:00
Dr. Jan Honolka Surface and material science perspectives of the new NanoESCA Lab 10.04.2013 15:00
Pavel Augustinský Improved Measurement of Green's Function in Hybridization Expansion Continuous Time Quantum Monte Carlo. 09.04.2013 15:00
Pavel Márton A brief excursion to the ferroelectric-domain-wall interior 09.04.2013 10:00
Ing. Filip Šroubek, Ph.D. Blind Deconvolution in Image Processing 09.04.2013 10:00
Ing. Martin Smrž, Ph.D. Generování nanosekundových a pikosekundových laserových pulsů. Přeladitelné lasery 08.04.2013 09:30
Laserový den na UHK 08.04.2013 09:00
Sergej Moroz Super Efimov effect 04.04.2013 11:00
Dr. Yong-Ho CHA High-power slab and fiber lasers at KAERI 29.03.2013 10:00
Fumitaka Ohashi Clathrates with group IV materials: novel photo-absorption materials for solar cells 28.03.2013 15:00
J. Kamarád Magneto-kalorické jevy v amorfních a krystalických slitinách 3-d prvků (přímá měření) 28.03.2013 14:00
Xavier Marti Antiferromagnetic semiconductor spintronics 27.03.2013 10:00
Ondřej Kaman Komplexní magnetické nanočástice s monodisperzními jádry a hybridními obaly 21.03.2013 14:00
Prof. Laurent Baulieu Minimizing gauge-functional for 2-d gravity and string theory 14.03.2013 15:00
Takatoshi Yamada Microscopic C-AFM/KPFM/Raman characterization of thermal and plasma CVD graphene 11.03.2013 15:30
Nava Setter Ferroelectric nano-wires 07.03.2013 15:00
Hiroki Tsuchiura Coercivity mechanism of Nd-Fe-B sintered magnets 07.03.2013 14:00
Takeshi Tayagaki Toward highly efficient Si solar cells using Ge/Si heterostructures 01.03.2013 13:00
Kirill Svit, PhD. student Formation and tunneling spectroscopy of CdS QDs obtained by Langmuir-Blodgett method 01.03.2013 10:00
Maurits W. Haverkort Theory of novel spectroscopic techniques: Probing spin, charge and orbital physics 28.02.2013 15:00
Marian Varga Diamant v nanotechnologii 14.02.2013 10:00
Tomáš Jungwirth Optical spin-transfer and spin-orbit torques 13.02.2013 15:00
Jan Koláček Londonovo pole v supravodičích 07.02.2013 14:00
Veronica Goian a Stanislav Kamba Hybrid improper-ferroelectric phase transition in Ca3Mn2O7; Novinky na Ferro 2013 v Ames, USA 05.02.2013 10:00
Steven M. Kahn O projektu největšího přehlídkového dalekohledu na světě 04.02.2013 17:00
Karel Knížek Elektrický transport a magnetismus v nových vrstevnatých kobaltátech se vzácnými zeminami 31.01.2013 15:00
Pavel Řezníček Vybrané analýzy z B-fyziky v experimentu ATLAS 31.01.2013 14:00

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