Fyzikální ústav Akademie věd ČR

Semináře

An Operator Calculus for Modeling and Compensation of Complex Memory Nonlinearities in Smart Material Systems

Út, 23/04/2013 - 10:00 - 11:00

Dr. Ing. Klaus Kuhnen (Corporate Research Department, Electrodynamics and Drives, Robert Bosch GmbH, Germany)

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Luminescence Modes in the Semiconductor Micro Structure

Po, 29/04/2013 - 13:00 - 14:00

Huibing Mao (East China Normal University, Shanghai, China)

In the semiconductor microstructure there are two different modes: Fabry-Perot modes and whispering gallery modes. In the band-edge region, there are strong coupling between the exciton and the confined photon, which will lead a quasi-particle: polariton. In a ZnO semiconductor nanobelt with a transverse size of m, more than 20 modes are observed in the band-edge region, and more than 60 modes are observed in the visible region. The theoretical results demonstrate that in the band-edge region the luminescence modes are determined by the polariton modes.

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Studies of phase transitions in Fe containing ternary perovskite multiferroics

Út, 07/05/2013 - 10:00 - 11:00

Igor P. Raevski (Southern Federal University, Rostov-on-Don, Russia)

One of the promising ways of designing new single-phase multiferroic materials is adjusting the temperatures of both ferroelectric and magnetic phase transitions by ion substitutions in the host compound to obtain the maximal magnetoelectric coupling. The aim of the present talk is a brief review of the recent studies of both ferroelectric and magnetic phase transitions in some Fe containing ternary perovskite multiferroics, especially PbFe0.5B0.5O3 (B-Nb, Ta, Sb) and related solid solutions.

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Jan Jacob InAs Spinfilter Cascades 10.08.2011 10:00
Natalia Kovaleva Spin-orbital effects in Mott-Hubbard optical bands in LaMnO3 02.08.2011 10:00
Dr. Peter Fouquet Microscopic friction and diffusion of surface adsorbed molecules measured in real time by neutron scattering 18.07.2011 17:00
Joe Trodahl Rare-Earth Nitrides: Intrinsic Ferromagnetic Semiconductors 15.07.2011 10:00
Zoltán Mics Electron dynamics and transport in nanocrystalline CdS studied by time-resolved THz spectroscopy 12.07.2011 10:00
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Jan Hladký Naši emigranti z oddělení fyziky vysokých energií Fyzikálního ústavu ČSAV po roce 1968 23.06.2011 15:00
Ivo Nezbeda Modern statistical thermodynamics of fluids: State of the art, problems, and prospects 21.06.2011 15:00
Prof. Miha Čekada Surface growth defects in PVD coatings 21.06.2011 14:00
Dr. Milan Orlita Magneto-optické vlastnosti grafenu 21.06.2011 10:00
Ingo Allekotte Measurements of low energy radiation and other enhancements of the Pierre Auger Observatory 16.06.2011 15:00
Oliver Gutfleisch Magnetic materials in sustainable energy 14.06.2011 15:00
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Karel Píška TeX: Nové směry rozvoje 09.06.2011 15:00
J. Vacek SELF-ASSEMBLY OF AZAHELICENES ON AG(1,1,1): STM AND COMPUTATIONAL STUDY 07.06.2011 15:00
RNDr. Lenka Poláková, PhD. Příprava uspořádaných polyurethanů na bázi kapalně-krystalických poly(butadien)diolů 07.06.2011 10:00
Petr Gallus, Martin Zeman Seminář z řady "Fyzikální program experimentu ATLAS" 03.06.2011 13:30
Victor Kukhtin Studies of ATLAS LAr calorimeter with beams of U-70 accelerator in Protvino 27.05.2011 10:30
Igor A. Savin Collaboration with Czech physicists in high energy experiments at Dubna, Serpukhov and CERN 26.05.2011 15:00
Jana Poltierová Vejpravová Nanočástice na bázi oxidů přechodných kovů: struktura a magnetismus 24.05.2011 15:00
B. Wecht New Tools for New SCFTs 24.05.2011 15:00
Dr. Ed Moses The National Ignition Facility and the Goal of Nearterm Laser Fusion Energy 23.05.2011 15:00
Jana Nováková Měření účinného průřezu procesu Z -> tau tau pomocí detektoru ATLAS 20.05.2011 14:00
Yuri Galperin Flux dendrites produced by avalanches in superconducting films 19.05.2011 14:00
Dr. Peter Wahl Quantum Point Contact Microscopy 18.05.2011 15:00
Michal Vlasák Search for Microscpoic Black Holes at LHC 13.05.2011 10:30
Jan Mašek Antiferromagnetické polovodiče I-Mn-V: nová rodina materiálů pro spintroniku 11.05.2011 15:00
Prof. Dr. R. J. Soukup, Prof. Dr. N. J. Ianno Highly Ordered Growth of SiC Deposited using A Hollow Cathode Technique; Solar Energy Engineering 11.05.2011 13:00

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