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, 27/11/2009 - 10:30

 Fundamentals of the Oxygen Reduction Reaction

Seminar / Tue, 24/11/2009 - 10:00

 Material studies with spin polarized muons as magnetic microprobes

jine / Thu, 05/11/2009 - 09:00

 Dny otevřených dveří 2009

Seminar / Fri, 30/10/2009 - 10:00

 In situ synchtrotron x-ray diffraction analysis of molecular beam epitaxy growth

Seminar / Tue, 27/10/2009 - 10:00

 Second Quantization of Mixed States of Luminophore Molecule and Small metal particle

Seminar / Thu, 15/10/2009 - 10:00

 Behaviour of helical structure in some chiral smectic C* liquid crystals

Seminar / Tue, 29/09/2009 - 15:00

 Phase transitions in the three-dimensional Falicov-Kimball model

Seminar / Tue, 22/09/2009 - 10:00

 Simultaneous permittivity and permeability measurements of multiferroics using coaxial line techniques

Seminar / Mon, 14/09/2009 - 14:30

 Counting multicenter BPS states in N=2 supergravity

Conference / Mon, 07/09/2009

 The 8th European Symposium on Martensitic Transformations ESOMAT 2009

Seminar / Thu, 23/07/2009 - 10:00

 Raman spectroscopy and X-ray diffraction studies of oxide thin films

Seminar / Tue, 21/07/2009 - 10:00

 Raman spectroscopy of GaN quantum dots and GaN/sapphire circular pillars

The Dvořák Lecture / Wed, 10/06/2009 - 15:00

 Thermodynamic Approach to Nano-Inhomogeneous Ferroelectrics

Seminar / Thu, 04/06/2009 - 10:00

 Theoretical modelling of ferromagnetic nanomaterials based on liquid crystals

Seminar / Thu, 07/05/2009 - 10:00

 Onset of the -relaxation in LiCl-6H2O by Brillouin scattering techniques

Seminar / Tue, 05/05/2009 - 10:00

 Relaxor Ferroelectric Thin Films

Seminar / Thu, 30/04/2009 - 10:00

 The analysis of methods for elimination of high frequency dielectric losses in ITO cells

Seminar / Fri, 17/04/2009 - 09:00

 Polar state and critical behavior in quantum relaxor Li doped KTaO3

Seminar / Thu, 16/04/2009 - 15:00

 Peculiar physical properties of ferroelectric superlattice thin films

Seminar / Tue, 17/03/2009 - 10:00

 Pozoruhodný svět topologických poruch

Seminar / Mon, 01/09/2008 - 00:03

 Database of past seminars (1995-2009)

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