Fyzikální ústav Akademie věd ČR

Semináře

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

Úterý, 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

Pondělí, 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

Úterý, 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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Minulé semináře
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
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

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