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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Rolf Moeller Electronic transport on the nanoscale 28.04.2011 15:00
Prof. RNDr. Ladislav KAVAN, DSc. Uhlíkové nanostruktury z pohledu spektroelektrochemie 20.04.2011 15:00
Seong Hee Park Research activities on laser-plasma electron acceleration and gamma-ray generations at KAERI 20.04.2011 14:00
Kitae Lee Interaction of ultraintense laser pulse with plasmas for the generation of a high energy proton beam and an ultrashort x-ray pulse 20.04.2011 14:00
Dr. Carlos Pecharroman Electromagnetic properties of composites around percolation threshold: Experimental features, physical properties and theoretical descriptions. 12.04.2011 10:00
Jiří Pešek Some aspects of non-equilibrium thermodynamics for small stochastic systems - part II 29.03.2011 15:00
Miroslav Havránek Upgrade pixelového detektoru v experimentu ATLAS 25.03.2011 13:30
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Andreas Heinrich Probing the energetics and dynamics of individual atomic spins on surfaces 21.03.2011 15:00
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Milan Krtička Původ těžkých prvků ve vesmíru 17.03.2011 15:00
Karel Netočný Some aspects of non-equilibrium thermodynamics for small stochastic systems - part I 15.03.2011 15:00
Ali Sadeghi Minima Hopping Method: Structure prediction of nano-systems. Multiscale simulation of Kelvin probe force microscopy. 14.03.2011 14:00
Břetislav Šopík Popis supravodivosti pomocí T-matice 10.03.2011 14:00
Axel Hoffmann Pure Spin Currents: Discharging Spintronics 07.03.2011 14:00
Azamat Elmurodov Phase-slip phenomena in NbN superconducting nanowires with leads 24.02.2011 14:00
Antonín Fejfar Mikroskopické studium křemíkových tenkých vrstev 23.02.2011 15:00
Balazs Ujfalussy Interactions between magnetic impurities on surfaces of noble metals and alloys 22.02.2011 15:00
Jan Hladký Fyzika v IFVE Serpuchov 1970 - 1990 (experimenty BIS-1 a BIS-2 aneb Kam jsme také došli od našich začátků) 17.02.2011 15:00
Bohdan Hejna Zakladní myšlenky informační termodynamiky 16.02.2011 10:00
Pavel Středa Anomalous Hall conductivity: local orbitals approach 15.02.2011 15:00
Dr. Petr Klapetek Numerické metody v nanometrologii 14.02.2011 14:00
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Dr. Guy Le Lay Silicene discovery: from massively parallel nano-ribbons to two-dimensional sheets 11.02.2011 11:00
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Pavel Provinský Některá netradiční užití principu relativity 09.02.2011 10:00
P. Wissgott Analysis of thermoelectric materials with LDA+DMFT 08.02.2011 15:00

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