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
Josef Mysliveček Thin films of ceria for model catalytic experiments 25.03.2014 10:00
Dr. Ryo Yasuhara Transparent magneto-optic TGG ceramics for the high energy and high power laser applications 24.03.2014 11:00
Oleg Lunov Advanced Physical Methods in Cell Biology and Nanomedicine 19.03.2014 15:00
Neda Neykova ZnO nanocolumns arrays for thin film silicon solar cells 18.03.2014 13:00
Ing. Jozef Vincenc Oboňa, PhD. Lased-induced Periodic Surface Structures (LIPSSs) Initiation and “growth” 18.03.2014 13:00
Sergey Varlamov LASER CRYSTALLISED SILICON THIN FILMS AND SOLAR CELLS ON GLASS: SIGNIFICANC OF THE INTERFACE 18.03.2014 10:00
Aurélien Manchon / Dominique Givord Spin-Orbit Caloritronics / Electric Field Effects on Magnetism in Metals 14.03.2014 10:00
Maria Valentyuk Microscopic picture of magnetic frustration effects and related phenomena in novel materials 12.03.2014 15:00
Kristin Poduska The role of electrochemistry in semiconductor growth and degradation 06.03.2014 10:00
Karel Carva Calculating ultrafast magnetization dynamics 04.03.2014 15:00
Katharina J. Franke Magnetic properties of single molecules and metal-organic networks on surfaces 04.03.2014 13:00
Jiří Červenka Chemical sensing by graphene field effect transistors 04.03.2014 10:00
Marek Taševský FCC – Future Circular Collider Study - information from the Kick-off workshop 27.02.2014 14:00
František Máca The influence of adsorbates on the magnetic structure of the Fe/Ir(001) surface 25.02.2014 15:00
Prof. Shuji Sakabe Research activities of Laboratory for Laser-Matter Science, Institute for Chemical Research 21.02.2014 11:50
Prof. Lalit M. Kukreja Laser Surface Modifications and Additive Manufacturing: Recent Developments at RRCAT 21.02.2014 11:00
Dr. Al Erlandson Energetics Modeling and Slit Filters for Diode- Pumped Solid-State Lasers 21.02.2014 09:50
Dr. Hiromitsu Kiriyama Progress towards ultra-high intensity laser 21.02.2014 09:00
Gunther Eggeler On the use of advanced transmission electron microscopy for characterizing elementary transformation and deformation processes in shape memory alloys and high temperature materials 18.02.2014 14:00
Robert Král Study of crystal growth by directional crystallization methods 11.02.2014 13:00
Lukáš Ondič Silicon nanocrystals, photonic structures and optical gain 06.02.2014 15:00
Jiří Chudoba, Oldřich Kepka ATLAS experiment data processing at the Goliáš computer farm 06.02.2014 14:00
Balazs Ujfalussy Quasiparticle spectrum of superconductor-normal metal heterojunctions 06.02.2014 10:00
Jan Mašek and Jakub Železný Electronic Structure of MnTe: Restrospective and News 04.02.2014 15:00
Jindřich Kolorenč Kvantové Monte Carlo simulace elektronové struktury pevných látek 04.02.2014 10:00
Michal Malinský Baryon and lepton number violation in the Standard Model and beyond 29.01.2014 14:00
Egbert Zojer Using Quantum-Mechanical Modelling to Understand the Role of Interfaces in Organic Electronics 28.01.2014 10:00
Tomáš Laštovička News from the LCWS 2013 Conference - latest news about the ILC collider construction in Japan 16.01.2014 14:00
Victor M. García-Suárez Thermoelectric properties of molecular junctions 14.01.2014 10:00
J. Kulveit Beyond Classical Nucleation Theory 07.01.2014 13:00

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