Fyzikální ústav Akademie věd ČR

Events

Molecular Geometry Determination by Atomic Force Microscopy

Seminar / Tue, 07/10/2014 - 10:00 - 11:00

Nikolaj Moll (IBM Research Zurich, Ruschlikon, Switzerland)

Using functionalized tips, the atomic resolution of a single organic molecule can be achieved by atomic force microscopy (AFM) operating in the regime of short-ranged repulsive Pauli forces while the van der Waals and electrostatic interactions only add a diffuse attractive background. To theoretically describe the atomic contrast a simple model is introduced in which the Pauli repulsion is assumed to follow a power law as a function of the probed charge density. Even, different bond orders of individual carbon-carbon bonds in organic molecules can be distinguished by AFM.

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Dynamics of nanoscale polarization fluctuations in a SBN-61 single crystal

Seminar / Tue, 07/10/2014 - 10:00 - 11:20

Petr Ondrejkovič (Department of Dielectrics)

Dynamics of nanoscale polarization fluctuations in a SBN-61 single crystal: overview of our recent inelastic netron scattering experiments with a sub-milielectronvolt energy resolution; relevance of Vogel-Fulcher law to diffuse scattering in uniaxial relaxor crystals)

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Diamond Field Effect Transistors with high-k gate insulator

Seminar / Thu, 09/10/2014 - 10:00 - 11:00

Yasuo Koide (Network and Facilities Services Division; Wide Bandgap Materials Group, Optical and Electronic Materials Unit, National Institute for Materials Science (NIMS), Japan)

Diamond has an attractive interest as one of next-generation power electronics materials. Since the sheet hole density in the hydrogenated-diamond surface was reported to be as high as 1E14 cm-2 which was one or two orders larger than other semiconductors. Therefore, we should use such the big advantage and then have to develop the high-k gate dielectric for diamond in order to control the high-density hole carrier.

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International Workshop on Relaxor Ferroelectrics

Conference / Sun, 12/10/2014 - Thu, 16/10/2014

We are proud to host the first regular International Workshop on Relaxor Ferroelectrics in Stirin, Czech Republic, on 12–16 October 2014. The Workshop will will initiate a biannual worldwide discussion forum focused on the physics and applications of relaxor ferroelectrics, their structure, polar nanoregions, nanodomains, dielectric and piezoelectric properties, relation to structural and spin glasses, spectroscopic data etc.

For more information, please visit the Workshop website at http://palata.fzu.cz/iwrf14/.

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Joint Institute for Nuclear Research in Dubna: history, presence and future

Seminar / Mon, 13/10/2014 - 14:00

Richard Lednický (Institute of Physcics AS CR, Prague and JINR, Dubna)

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Past events

Seminar / Fri, 07/06/2013 - 10:00

 Warm laser shock peening

Seminar / Tue, 28/05/2013 - 10:00

 PFM and Raman study of ferroelectric domain structure in PbTiO3 thin films

Conference / Tue, 21/05/2013

 The International Conference on Shape Memory and Superelastic Technologies (SMST 2013)

Seminar / Fri, 17/05/2013 - 14:15

 Tweed microstructures and Linear-quadratic Coupling in Phase Transitions

Seminar / Fri, 17/05/2013 - 10:00

 Spin-orbit coupling fields in hybrid ferromagnet/semiconductor heterostructures

Seminar / Thu, 16/05/2013 - 14:00

 Recent development of ultra-fine-grained metallic materials and magnetic powders at KIMS

Seminar / Thu, 16/05/2013 - 14:00

 Spin injection in ferromagnet/semiconductor hybrid structures: building blocks to spintronic circuits

Seminar / Thu, 16/05/2013 - 10:00

 Raman scattering studies of relaxor piezoelectrics

Seminar / Wed, 15/05/2013 - 15:00

 Intermediate valence in Pu and Pu-based superconductors

Seminar / Tue, 14/05/2013 - 15:00

 Continuous replica symmetry breaking in mean-field spin-glass models: Perturbation expansion without the replica trick

Seminar / Tue, 14/05/2013 - 10:30

 Non-covalent Interactions to Graphene: Theory and Experiment

Seminar / Thu, 09/05/2013 - 15:00

 Superconductivity and Two-­ dimensionality: Experimental Facts, Theoretical Issues

Seminar / Tue, 07/05/2013 - 10:00

 Studies of phase transitions in Fe containing ternary perovskite multiferroics

Seminar / Tue, 30/04/2013 - 15:00

 Spin-disordered resistivity of ferromagnetic metals: the disordered local moment approach

Seminar / Mon, 29/04/2013 - 13:00

 Luminescence Modes in the Semiconductor Micro Structure

Seminar / Tue, 23/04/2013 - 10:00

 An Operator Calculus for Modeling and Compensation of Complex Memory Nonlinearities in Smart Material Systems

Seminar / Fri, 19/04/2013 - 14:00

 Following dynamics at the atomic scale: The relaxation of a spin measured by time resolved STM

Seminar / Thu, 18/04/2013 - 14:00

 Activities of the ultrarelativistic heavy ions group from the Institute of Nuclear Physics, AS CR, at ALICE and STAR experiments

Seminar / Thu, 18/04/2013 - 13:30

 Design and manufacturing of volume Bragg diffraction gratings in a phototermorefractive (PTR) glass for the pulse stretching and compression

Seminar / Wed, 17/04/2013 - 15:00

 Discovering the nano-world with bright laser beams of extreme ultraviolet light

Seminar / Tue, 16/04/2013 - 15:00

 Electronic structure and magnetic properties of selected transuranium compounds

Seminar / Tue, 16/04/2013 - 10:00

 Tunability of materials and structures for THz spectral range; Dvojčata, domény, hybridní struktury

Seminar / Thu, 11/04/2013 - 14:00

 Magnetic properties and magnetocaloric effect of Co substituted Mn rich Ni2MnGa

Seminar / Thu, 11/04/2013 - 14:00

 Hadronization and the Lund fragmentation model

Seminar / Wed, 10/04/2013 - 15:00

 Surface and material science perspectives of the new NanoESCA Lab

Seminar / Tue, 09/04/2013 - 15:00

 Improved Measurement of Green's Function in Hybridization Expansion Continuous Time Quantum Monte Carlo.

Seminar / Tue, 09/04/2013 - 10:00

 A brief excursion to the ferroelectric-domain-wall interior

Seminar / Tue, 09/04/2013 - 10:00

 Blind Deconvolution in Image Processing

Seminar / Thu, 04/04/2013 - 11:00

 Super Efimov effect

Seminar / Thu, 28/03/2013 - 15:00

 Clathrates with group IV materials: novel photo-absorption materials for solar cells

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