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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Minulé semináře
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Martin Friák Multi-scale modeling of hierarchical biocomposites 30.06.2015 15:00
Leonid Glebov Volume Holographic Elements for Spectroscopy and High-Power Laser Applications 26.06.2015 10:00
Urko Petralanda Holguin Structural instabilities and sequence of phase transitions in SBN and SBT from first principles and Monte Carlo simulations 23.06.2015 15:00
Dr. Pavel Staroba Měření vlastností bosonů W a Z na LHC + informace o konferenci CIPANP 2015 18.06.2015 13:30
Václav Drchal Angle-resolved photoemission spectra of Heusler alloys: Ni2MnGa as a case study 16.06.2015 15:00
Kirill Belashchenko Effects of thermal spin fluctuations on the electronic properties of itinerant magnets: Surprises from ab initio calculations 09.06.2015 15:00
Elena Buixaderas / Urko Petralanda Metastable ferroelectric states in antiferroelectric PZT ceramics (EB); Phase transtion mechanism of SBT and SBN (UP) 09.06.2015 14:00
Joachim Reichert Single-Molecule Junctions in Strong Optical Fields 09.06.2015 10:00
Vladimir Stephanovich Thermodynamics of magnetically ordered and disordered systems 04.06.2015 14:00
Prof. B. Dabrowski Search for Displacive-type Multiferroics with a Huge Magnetoelectric Coupling 02.06.2015 10:00
Karel Král, Miroslav Menšík Energy and Charge Transfer between Quasi-zero-dimensional Nanostructures 26.05.2015 15:00
Marek Pasciak Finite temperature phonon spectra in perovskites from atomistic simulations 26.05.2015 10:00
Iván Brihuega Visualizing and manipulating graphene physics at the atomic scale 21.05.2015 15:00
R. Cimrman, M. Novák, and J. Vackář Isogeometric analysis, environment-reflecting separable pseudopotentials and Hamiltonian rank-m updates in the evaluation of Hellman-Feynman forces 12.05.2015 15:00
Miroslav Kotrla Multiscale modeling of magnetic metals heteroepitaxial overlayers. 05.05.2015 15:00
Dr. Xavier Martí From/to science to/from business 30.04.2015 10:00
Matthias Vojta Coupled-dimer magnets: Systematic expansions, quantum criticality, and disorder 28.04.2015 15:00
Bert Voigtländer Charge Transport Measurements at the Nanoscale using a Multi-Tip STM 28.04.2015 10:00
Prof. David A. Crandles The Search for Ferromagnetism in SrTiO3 28.04.2015 10:00
Prof. Shih-Jye Sun The property variations of ZnO responding to UV irradiations 27.04.2015 13:30
Prof. Hua Shu Hsu Introduction to Magnetic Circular Dichroism and its application in magnetic semiconductor 27.04.2015 13:00
Vladislav Šimák Dvacet let od objevu top kvarku 23.04.2015 14:00
Jiří Chaloupka Magnetism of layered honeycomb iridates 21.04.2015 15:00
Alexander Poddubny Surface engineering in silicon- and germanium- based nanocrystals 21.04.2015 10:00
Hendrik Vita Interaction of magnetic and non-magnetic metals with graphene 14.04.2015 15:00
Roman Fasel Electronic and optical properties of atomically precise graphene nanoribbons 09.04.2015 15:00
Holger Kersten Non-conventional diagnostics for process plasmas 08.04.2015 15:00
Jan Skolimowski Anderson and Mott transitions in presence of the spin-dependent disorder 07.04.2015 15:00
Prof. David Crandles Infrared spectroscopy of dilute magnetic semiconductors 02.04.2015 10:00

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