Fyzikální ústav Akademie věd ČR

Semináře

Single-Molecule Junctions in Strong Optical Fields

Úterý, 09.06.2015 10:00 - 11:00

Joachim Reichert (Physik Department, TU München, Germany)

In order to advance the development of unimolecular electronic devices (e.g. film devices) it is mandatory to improve understanding of electron transport and its loss mechanisms in single molecules. In this aspect, multi-parameter studies are required to provide more information on such systems.

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Metastable ferroelectric states in antiferroelectric PZT ceramics

Úterý, 09.06.2015 14:00 - 15:00

Elena Buixaderas (Oddělení dielektrik, Fyzikální ústav AV ČR)

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Effects of thermal spin fluctuations on the electronic properties of itinerant magnets: Surprises from ab initio calculations

Úterý, 09.06.2015 15:00 - 16:00

Kirill Belashchenko (University of Nebraska-Lincol)

Abstract: Thermal spin fluctuations are present in equilibrium in all magnetic materials. These fluctuations interact with electronic quasiparticles and induce temperature-dependent changes in such observables as the spectral densities, magnetocrystalline anisotropy, and transport properties. This talk will review surprising examples of such effects in metallic magnets found using first-principles calculations. Spin fluctuations are included in these calculations within the vector disordered local moment model.

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Angle-resolved photoemission spectra of Heusler alloys: Ni2MnGa as a case study

Úterý, 16.06.2015 15:00

Václav Drchal (Oddělení teorie kondenzovaných látek, FzU AVCR)

Abstract: We have calculated the electronic structure and angle-resolved photoemission spectra of Heusler alloys from first principles using the TB-LMTO method. The disorder, caused either by non-stoichiometry, or by swapping of atoms between sublattices is treated within the CPA. Matrix elements are included within the dipole approximation.

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Minulé semináře
Josef Kudrnovský Magnetism of mixed quaternary Heusler alloys: (Ni 1-x,Tx)2 MnSn (T=Cu,Pd) as a case study 09.11.2010 15:00
Milan Vaněček a kol. Fotovoltaika a nové technologie 09.11.2010 13:00
Roman Lysák Od fyziky top kvarku k Higgsovmu bozónu 08.11.2010 15:00
Dr. Jan Honolka Molecule-regulated magnetism at surfaces: from metal-organic network to molecule/ferromagnetic semiconductor hybrids 03.11.2010 15:00
Antonio Lucianetti Nonlinear thermal effects and Amplified Spontaneous Emission (ASE) in high-average-power solid-state lasers 27.10.2010 14:30
Vladimír Železný Topological insulators 26.10.2010 10:00
Pavel Růžička Měření měkké difrakce pomocí kalorimetru detektoru ATLAS 22.10.2010 13:30
Prof. Akira Endo High average power, short pulse solid state lasers for compact X-ray sources via Compton scattering and plasma emission 21.10.2010 15:00
Dr. Joerg Wunderlich Colloquium Cukrovarnická - Spin Hall effect transistor 21.10.2010 15:00
Iegor Rafalovskyi Irradiation influence on charge carrier transport in AlGaN/GaN heterostructure 21.10.2010 10:00
Jan Kuneš Počítačové modelovaní elektronových korelací v pevných látkách 20.10.2010 15:00
Andrea Campoleoni Asymptotic symmetries of 3D gravity coupled to higher-spin fields 11.10.2010 15:00
Dr. Marina Tjunina Epitaxial control of polar order in perovskites 08.10.2010 13:00
Andrea Taroni Atomistic Spin Dynamics of Low-dimensional Magnets 06.10.2010 15:00
Stéphane Sebban Progress on laser driven x-ray sources at the Laboratoire d’Optique Appliquée 06.10.2010 09:30
Dr. Pedro de Andres Physical chemistry on graphene 05.10.2010 10:00
David Šálek Měření difrakční longitudinální strukturní funkce protonu v experimentu H1 01.10.2010 13:30
Pavel Marton Atomic origin of ferroelectric hardening in PbTiO3 and Pb(ZrTi)O3 24.09.2010 16:00
Taneli Laamanen Electronic Structure of Rare Earth Ions in the Sr2MgSi2O7 Persistent Luminescence Host Material 24.09.2010 14:00
Kateřina Kůsová Vliv organické pasivace na optické vlastnosti křemíkových nanokrystalů 23.09.2010 13:00
Igor Beinik Electrical characterization of semiconductor nanostructures by scanning probe microscopy based techniques 21.09.2010 14:00
Petr Němec MLD in (Ga,Mn)As 15.09.2010 15:00
Dr. Daisuke Takeuchi Single Crystal Diamond Electronic Devices 10.09.2010 14:00
Tomáš Ostatnický Spontaneous coherence in systems of cavity polaritons 07.09.2010 10:00
Ashoke Sen Extremal black hole entropy 30.08.2010 15:00
Julien Pernot Mobility in homoepitaxial doped diamond 20.07.2010 13:00
Kiyoka Okada First direct confirmation of nano-nucleation and new nucleation theory 19.07.2010 14:00
prof. Masamichi Hikosaka New polymer crystallization mechanism and realization of the ultra high performances 19.07.2010 10:00
Darrell G. Schlom A thin film approach to engineering functionality into oxides 30.06.2010 15:00
Karsten Held Dynamical vertex approximation - a step beyond dynamical mean field theory 29.06.2010 15:00

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