Fyzikální ústav Akademie věd ČR

Seminars

Jahn-Teller phonons inducing ferroelectricity in GaV4S8

Tuesday, 14.06.2016 10:30 - 11:30

Jiri Hlinka (Department of Dielectrics )

Interesting ferromagnetic ferroelectric system permitting skyrmionic spin structure phases has also a peculiar ferroelectric transition. We shall briefly report about theoretical and experimental studies of the lattice-dynamics aspects of this phase transition.

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High-pressure behaviour of transition metal dichalcogenides MoS2, MoSe2 and MoTe2 from ab initio simulations

Tuesday, 14.06.2016 15:00 - 16:00

Roman Martoňák (Department of Experimental Physics, Comenius University in Bratislava, Mlynská dolina F2, 842 48 Bratislava, Slovakia)

Abstract: We study the evolution of structural and electronic properties of layered semiconducting transition metal dichalcogenides, MoX2 (X = S, Se, Te) upon increasing pressure, employing ab initio DFT calculations in combination with metadynamics and evolutionary search. We found that in MoS2 a layer sliding structural transition occurs at 20 GPa, converting the 2Hc stacking stable at ambient pressure to the 2Ha stacking (known in 2H-NbSe2)[1].

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Optical trapping of silica nanoparticles in air

Thursday, 16.06.2016 10:00 - 11:00

Lukáš Ondič (Fyzikální ústav AV ČR, v.v.i.; Cikrovarnická 10; Praha 6)

Tightly focused electromagnetic radiation (an optical beam) can be used to capture a small particle without physically touching it. This technique, which has led to a Nobel prize in physics and a whole new industry in biotechnology, could allow for example to explore new physical regimes when it is combined with cooling the particle to its quantum ground state.

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Optical convertors for high average-power, high-repetition laser

Tuesday, 28.06.2016 15:00

H. Turčičová, O. Novák (Dolní Břežany)

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Past seminars
Václav Cílek Ohlédnutí za rokem, ve kterém se klima stalo sociální silou 15.12.2015 15:00
Josef Redinger Complex structures and magnetism of thin Cobalt oxide films on Iridium 08.12.2015 15:00
Markus Terhorst Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS): A Success Story for All Kind of Applications in Surface and Interface Analysis 07.12.2015 13:00
Robert Stadler Devices in single molecule electronics based on quantum interference and redox switches 03.12.2015 15:00
Dr. Kamila Nowicka Non-linear electro-optical effects in the study of the helical smectic liquid crystals. SEMINAR CANCELLED 03.12.2015 11:00
Petr Hořava Surprises with Non-relativistic Naturalness 02.12.2015 15:00
Walter Hofstetter Competing quantum phases of lattice bosons with long-range interactions or large spin 01.12.2015 15:00
Dr. Andreas Huber NeaSNOM – nanoscale imaging and spectroscopy at VIS to IR to THz frequencies 27.11.2015 13:00
Prof. Luigi Lazzeri Fatigue life of aircraft structures: Issues for crack initiation and propagation modelling 26.11.2015 14:00
Dr. Jürgen Spitaler First-principles calculations of phonons, optical properties and Raman spectra in vanadium ladder compounds 24.11.2015 10:00
Rossitza Pentcheva Designing electronic phases at oxide interfaces for electronic, spintronic and energy applications 19.11.2015 15:00
César de Julián Fernández Magneto-plasmonics: a novel class of nanomaterials 12.11.2015 14:00
Jiří Hejbal Summary of results of the ATLAS experiment related to the Standard Model 12.11.2015 14:00
Václav Janiš Fulbright Scholar at Louisiana State University II: Consistent description of quantum criticality of correlated electrons 10.11.2015 15:00
Dr. Ignacy Sawicki Dark Energy: Evidence and Future Prospects 06.11.2015 14:00
Philipp Werner Dynamical mean field approach to correlated lattice systems 03.11.2015 15:00
Václav Janiš Fulbright Scholar at Louisiana State University I: Thermodynamically consistent description of diffusion in disordered systems 27.10.2015 15:00
Kevin Garello Manipulation of magnetization by spin-orbit torques 23.10.2015 14:00
Can Onur Avci Interplay of charge, spin and thermal imbalances in normal-metal/ferromagnet bilayers 23.10.2015 10:00
Mads Brandbyge In silico studies of electronic current in nano-junctions: Exciting atomic motion 22.10.2015 15:00
Dr. Gregory Soyez Jets at the LHC and beyond 22.10.2015 14:00
Dr. P. Bednyakov Charged domain walls in BaTiO3 single-crystals 20.10.2015 10:00
Iaroslav Gnilitskyi and Leonardo Orazi Nonlinear laser lithography for industrial applications 16.10.2015 11:00
Chi-Chung Kei Applications of atomic layer deposition (ALD) 15.10.2015 13:30
Pavel Středa Orbital momentum, anomalous Hall effect and topological phase transformation 13.10.2015 15:00
Dr. Maria Zhuravleva Crystal Growth of Halide Scintillators With High Energy Resolution 13.10.2015 13:00
Alexander Lichtenstein Magnetism of correlated materials 07.10.2015 15:00
T. Domański Can electron pairing promote the Kondo state ? 06.10.2015 15:00
Philipp Rahe From structural to charge stability: Molecules on the insulating calcite (1014) surface 06.10.2015 10:00
Takashi Kumagai Direct observation and control of H-bond dynamics using scanning probe microscopy 01.09.2015 10:00

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