Fyzikální ústav Akademie věd ČR

Seminars

Single-Molecule Junctions in Strong Optical Fields

Tuesday, 09.06.2015 10:00 - 11:00

Joachim Reichert (Physik Department, TU München, Germany)

In order to advance the development of unimolecular electronic devices (e.g. film devices) it is mandatory to improve understanding of electron transport and its loss mechanisms in single molecules. In this aspect, multi-parameter studies are required to provide more information on such systems.

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Metastable ferroelectric states in antiferroelectric PZT ceramics

Tuesday, 09.06.2015 14:00 - 15:00

Elena Buixaderas (Oddělení dielektrik, Fyzikální ústav AV ČR)

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Effects of thermal spin fluctuations on the electronic properties of itinerant magnets: Surprises from ab initio calculations

Tuesday, 09.06.2015 15:00 - 16:00

Kirill Belashchenko (University of Nebraska-Lincol)

Abstract: Thermal spin fluctuations are present in equilibrium in all magnetic materials. These fluctuations interact with electronic quasiparticles and induce temperature-dependent changes in such observables as the spectral densities, magnetocrystalline anisotropy, and transport properties. This talk will review surprising examples of such effects in metallic magnets found using first-principles calculations. Spin fluctuations are included in these calculations within the vector disordered local moment model.

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Angle-resolved photoemission spectra of Heusler alloys: Ni2MnGa as a case study

Tuesday, 16.06.2015 15:00

Václav Drchal (Department of Condensed Matter Theory, FZÚ AV ČR, v.v.i.)

Abstract: We have calculated the electronic structure and angle-resolved photoemission spectra of Heusler alloys from first principles using the TB-LMTO method. The disorder, caused either by non-stoichiometry, or by swapping of atoms between sublattices is treated within the CPA. Matrix elements are included within the dipole approximation.

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Past seminars
Jan Rusz Dynamical screening effects in X-ray absorption spectra of graphene and BN 05.01.2010 15:00
Ing. Luděk Kraus, CSc. Unconventional soft magnetic materials and their application 14.12.2009 14:00
Dawei Wang Dielectric responses of Pb(Zr,Ti)O3 from first principles in the terahertz frequency range 10.12.2009 10:00
Narayani Choudhury Unusual phenomena in compositionally modulated BST systems 08.12.2009 10:00
Timo Jacob (Institut für Elektrochemie, Universität Ulm,Germany) Fundamentals of the Oxygen Reduction Reaction 27.11.2009 10:30
Pavel Bakule Material studies with spin polarized muons as magnetic microprobes 24.11.2009 10:00
Wolfgang Braun In situ synchtrotron x-ray diffraction analysis of molecular beam epitaxy growth 30.10.2009 10:00
Vilgelmina Stepkova Second Quantization of Mixed States of Luminophore Molecule and Small metal particle 27.10.2009 10:00
Wojciech Kuczynski Behaviour of helical structure in some chiral smectic C* liquid crystals 15.10.2009 10:00
Martin Žonda Phase transitions in the three-dimensional Falicov-Kimball model 29.09.2009 15:00
Simonas Grecius Simultaneous permittivity and permeability measurements of multiferroics using coaxial line techniques 22.09.2009 10:00
Dr. Dieter van den Bleeken, Rutgers Univ. (USA) Counting multicenter BPS states in N=2 supergravity 14.09.2009 14:30
Ausrine Bartasyte Raman spectroscopy and X-ray diffraction studies of oxide thin films 23.07.2009 10:00
Samuel Margueron Raman spectroscopy of GaN quantum dots and GaN/sapphire circular pillars 21.07.2009 10:00
Nina Podoliak Theoretical modelling of ferromagnetic nanomaterials based on liquid crystals 04.06.2009 10:00
Jean-François Legrand Onset of the -relaxation in LiCl-6H2O by Brillouin scattering techniques 07.05.2009 10:00
Marina Tyunina Relaxor Ferroelectric Thin Films 05.05.2009 10:00
Paweł Perkowski The analysis of methods for elimination of high frequency dielectric losses in ITO cells 30.04.2009 10:00
Hiroko Yokota Polar state and critical behavior in quantum relaxor Li doped KTaO3 17.04.2009 09:00
Yoshiaki Uesu Peculiar physical properties of ferroelectric superlattice thin films 16.04.2009 15:00
Lubor Lejček Pozoruhodný svět topologických poruch 17.03.2009 10:00
Database of past seminars (1995-2009) 01.09.2008 00:03

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