Fyzikální ústav Akademie věd ČR

FZÚ v médiích

O projektu LABONIT v pořadu Leonardo

Český rozhlas Leonardo, 28.2.2014.

V pondělním Magazínu...

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Rozhovor s prof. Bedřichem Velickým

Nadační fond Neuron, 10.2.2014.

Profesor Velický vybudoval a...

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Na stopě vzniku života

Videokanál Střediska společných činností Akademia věd ČR, 3.2.2014....

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Kdo ovládá magnet? Světlo!

21. století, 20.1.2014.

Českým fyzikům se pomocí světelného...

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Semináře

Chemical sensing by graphene field effect transistors

Úterý, 04.03.2014 10:00 - 11:00

Jiří Červenka (School of Physics, The University of Melbourne)

Graphene's two dimensional nature, highly sensitive unique electrical properties and low intrinsic noise characteristics make it a prime candidate for the creation of a new generation of molecular sensors. Despite of high sensitivity of graphene sensors, their selectivity remains a major problem for their practical use. In this talk I present different strategies for selective sensing using graphene-based sensors.

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Magnetic properties of single molecules and metal-organic networks on surfaces

Úterý, 04.03.2014 13:00 - 14:00

Katharina J. Franke (Freie Universität Berlin)

The magnetic properties of atoms and molecules on a surface are significantly affected by details in the atomic-scale surrounding. Manipulation of this surrounding provides the possibility to tune the electronic and magnetic functionality of surfaces on a nanometer scale. Using scanning tunnelling spectroscopy (STS), we show that the lifetime of excited spin states in the paramagnetic Fe-Octaethylporphyrin-Chloride (FeOEP-Cl) is orders of magnitude longer when the molecule is adsorbed on a superconductor as compared to a normal metal substrate.

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Calculating ultrafast magnetization dynamics

Úterý, 04.03.2014 15:00

Karel Carva (Oddělení teoretické fyziky, katedry fyziky kondenzovaných látek, MFF UK)

Abstract: In recent years it has been demonstrated that magnetization can be changed without applying an external magnetic field in extremely short timescales of the order of hundreds of femtoseconds [1]. We have studied the effect by means of ab initio calculations for three ferromagnetic metals Fe, Co and Ni [2] considering the Elliott-Yafet electron-phonon spin-flip (SF) scattering [3] which has been suggested to be the dominant microscopic mechanism.

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The role of electrochemistry in semiconductor growth and degradation

Čtvrtek, 06.03.2014 10:00 - 11:00

Kristin Poduska (Department of Physics and Physical Oceanography Memorial University of Newfoundland, Canada)

Electrochemical methods are widely applied to metal film deposition in industrial and high-tech settings, but the market share for semiconductor films produced using electrochemistry is dramatically less. At the same time, a large fraction of semiconductor-based devices rely on applied voltages for their operation, which means that electrochemical processes could occur in these devices wherever there exists an interface between an electron conductor (such as a semiconductor) and an ion conductor (such as water).

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Minulé semináře
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. Anne Stockem Weibel instability and shock generation 05.10.2010 10:30
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
Dieter Lüst Strings at LHC 24.06.2010 15:00
Ansgar Liebsch Correlation induced spin freezing transition in FeSe and FeAsLaO: a dynamical mean field study 24.06.2010 14:00

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