Fyzikální ústav Akademie věd ČR

Semináře

Spin-Orbit Coupling, Strong Interactions, and Topological Character: By Design & By Serendipity

Úterý, 17.05.2016 15:00

Warren E. Pickett (Department of Physics, University of California Davis, USA)

Abstract: This talk will wander through some developments from my group related to topological character of transition metal oxides (TMO). Certainly spin-orbit coupling (SOC) is a central feature, specifically the interplay between SOC and strong correlation effects as treated within density functional theory. Chern insulating phases within the "generalized phase diagram" of two TMO structural classes will be described.

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Realizing the Smallest Surface Adsorbed Quantum Magnets

Čtvrtek, 19.05.2016 15:00 - 17:00

Harald Brune (EPFL, Switzerland)

The magnetic states of nanostructures are of high interest for information storage and quantum information processing. This has triggered the search for the smallest possible magnets. In devices, electrodes have to be attached to them for readout and manipulation of the magnetic quantum states. This corresponds to their adsorption onto conducting surfaces.

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Computational materials design for photovoltaics and piezoelectrics

Úterý, 24.05.2016 10:00 - 11:00

Sabine Körbel (Institute of Condensed Matter Theory and Optics Friedrich-Schiller University Jena, Germany)

Abstract:

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Ultrafast Terahertz spectroscopy: a tool for contactless investigation of photoconductivity in nano-scaled systems

Úterý, 24.05.2016 10:00 - 11:00

Petr Kužel (Fyzikální ústav AV ČR, v.v.i.)

Is there any deep reason of using the new (and trendy) words “terahertz” and “multi-terahertz” when the traditional and well-established terms of far-infrared and mid-infrared have been available for decades? The answer is that the terms (multi-)terahertz are closely connected to specific quasi-optical techniques of coherent generation and detection of radiation, which provide some added value compared to “classical” experimental methods. Among others they allow one to observe directly the oscillations of terahertz light in time during various interactions.

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FAst timing for Positron Emission Tomography

Středa, 25.05.2016 13:00 - 14:00

Dr. Dennis R. Schaart (Delft University of Technology, Faculty of Applied Sciences, Delft, The Netherlands )

The use of time-of-flight (TOF) information in positron emission tomography (PET) significantly improves the effective sensitivity, enabling better image quality and reduction of scan times, dose and costs. PET manufacturers have recently released systems with 325-400 ps FWHM coincidence resolving time (CRT). Moreover, CRT’s well below 100 ps FWHM have been achieved using short (< 5 mm) scintillation crystals coupled to silicon photomultipliers (SiPMs).

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Jan Zemen Ab initio study of piezomagnetic effect in Mn-antiperovskites 01.12.2014 10:00
Dr. Marzena Tykarska Miscibility studies of liquid crystals and non-additive behaviour 20.11.2014 10:00
Martin Setvin Excess Electrons in TiO2 Anatase and Rutile: Delocalized Solutions and Localized Small Polarons 18.11.2014 10:00
Christian Teichert Growth of small organic molecules on graphene 14.11.2014 14:00
M. Chrunik New Oxide Materials for Nonlinear Optical Applications 11.11.2014 10:00
Prof. Alberto Morgante Charge transfer processes in organic nano- and hetero-structures 10.11.2014 15:00
Miroslav Havránek Senzory a elektronika pro upgrade pixelového detektoru v experimentu ATLAS 30.10.2014 14:00
Dr. Andreas Undisz Oxide layers on biomedical NiTi alloy – formation mechanism, mechanical stability and consequences for short- and long-term Ni-release 30.10.2014 14:00
Artem Ryabov Diffusion of a tagged particle in open single-file systems 21.10.2014 15:00
Miloš V. Lokajíček Elastický rozptyl protonů a platnost optického teorému v silných interakcích 16.10.2014 14:00
Jiří Chýla Jak byly objeveny kvarky 15.10.2014 15:00
Harald Oberhofer A theoretical description of water splitting on metal decorated oxide surfaces 14.10.2014 10:00
Richard Lednický Joint Institute for Nuclear Research in Dubna: past, presence and future 13.10.2014 14:00
Yasuo Koide Diamond Field Effect Transistors with high-k gate insulator 09.10.2014 10:00
Nikolaj Moll Molecular Geometry Determination by Atomic Force Microscopy 07.10.2014 10:00
Petr Ondrejkovič Dynamics of nanoscale polarization fluctuations in a SBN-61 single crystal 07.10.2014 10:00
Sebastian Loth Controlling magnetism in atomically engineered nanostructures 02.10.2014 10:00
Jörn Bonse Femtosecond laser-induced periodic surface structures 19.09.2014 15:00
Thomas Frederiksen Simulations of electron transport phenomena in single-molecule junctions 16.09.2014 10:00
Prof. Alok Singh Nucleation and growth of twins during fracture of a fine grained magnesium alloy 15.09.2014 10:00
E. Z. Kurmaev X-ray spectra and electronic structure of Fe and Cu superconducting pnictides 11.09.2014 14:00
Prof. Jordi Arbiol Exploring the optical properties of nanomaterials at sub-nanometer scale with a direct correlation to its structure at atomic scale 11.09.2014 11:00
Jiří J. Mareš The Concept of Temperature – Critical Analysis 10.09.2014 14:00
Ron Jansen Silicon spintronics 08.09.2014 10:00
Martin Veis Magneto-optical spectroscopy and ellipsometry of nanostructures 28.07.2014 10:00
M. I. Tsindlekht DC and AC Magnetic Properties of the Thin Walled Superconducting Niobium Cylinder 24.07.2014 14:00
Prof. Jeffrey McCord Magnetic materials as seen by magneto-optics 21.07.2014 10:00
Martin Eckstein Nonequilibrium control of the magnetic exchange interaction 17.07.2014 14:00
Prof. Robert L. Byer LASERs at Stanford: from the Laboratory to Commercial Products 08.07.2014 10:00

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