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Seminar / Wednesday, 19.09.2018 15:30

Lars Bergqvist (KTH Royal Institute of Technology, Stockhom, Sweden)

Abstract: An extended atomistic spin model allowing for studies of the finite temperature magnetic properties of alloys is proposed. The model is obtained by extending the Heisenberg Hamiltonian via a parameterization from a first principles basis, interpolating from both the low temperature ferromagnetic and the high temperature paramagnetic reference states. This allows us to treat magnetic systems with varying degree of itinerant character within the model. Satisfactory agreement with both previous theoretical studies and experiments are obtained in terms of Curie...

Seminar / Thursday, 20.09.2018 14:00

Ing. Jan Škarohlíd (doktorand ČVUT)

A new anticorrosion strategy for Zr nuclear fuel claddings will be presented and explained. The dissertation deals with a protection of zirconium (Zr) nuclear fuel cladding material against corrosion in water-cooled nuclear reactors by coating by polycrystalline diamond (PCD) or chromium-aluminum-silicon nitrate (CrAlSiN) layers. It was shown that Zr alloy surfaces can be effectively protected against oxygen and hydrogen uptake at both accident and working temperatures in water-cooled nuclear reactor environments by coating the Zr surface by PCD layer or CrAlSiN each in specific way and for...

Seminar / Tuesday, 25.09.2018 10:00

Prof. Tae Won Noh (Institute for Basic Science, Center for Correlated Electron Systems, Seoul National University, Korea)

Seminar / Tuesday, 25.09.2018 15:00

Ján Minár (New technologies – Research Center, University of West Bohemia, Plzeň)

The modern version of the KKR (Korringa–Kohn–Rostoker) method represents the electronicstructure of a system directly and efficiently in terms of its single-particle Green's function. Direct access to the Green function results in several appealing features. In particular the description of the electronic correlations, disorder and electronic spectroscopies for the nanosystems and surfaces has been developed in the recent years. In the first part of my talk I will review basic ideas of the multiple scattering KKR formalism. Second part will be devoted to the Angle-resolved photoemission...

Seminar / Wednesday, 26.09.2018 10:00

Prof. Greg M. Swain (Michigan State University, Department of Chemistry, USA)

Carbon electrodes are routinely used in electrochemical detectors and sensors to quantify electroactive analytes in solution. By electroactive, one is referring to molecules that are easily oxidized or reduced at an electrode surface. Generally speaking, electrochemical measurements often involve application of a potential to an electrode and measuring the current that flows in response to the potential perturbation, which is reflective of the local analyte concentration. Carbon is one of the most abundant elements found on the planet and, from a materials perspective, is unique because of...

Conference / Sunday, 07.10.2018 to Friday, 12.10.2018

16th International Conference on X-Ray Lasers

The scope of ICXRL 2018 includes, but is not limited to:

  • Laser and discharge pumped plasma x-ray lasers
  • Injection / Seeding of x-ray amplifiers
  • High order harmonics generation and ultrafast phenomena
  • X-ray free electron lasers
  • Novel schemes for (in)coherent XUV, X-ray and γ-ray generation
  • XUV and X-ray imaging, optics and metrology
  • X-rays and γ-rays for fundamental science
  • Implementation of X-ray lasers, XFELs and super-intense lasers
  • ...

Seminar / Tuesday, 09.10.2018 10:00

Prof. Hsiu-Hui Chen (Department of Chemistry, National Kaohsiung Normal University, Kaohsiung County, Taiwan, Republic of China)

Abstrakt: Hexa-peri-hexabenzocoronene (HBC) core tethered with three diacetylene (DA)-containing side-chains was designed and their self-assembling behavior in solvent and on substrate was investigated. The polymerizable HBC derivatives are noted as HBC-1,3,5-Ph-DA-Cn, where 1,3,5 refers to the position of DA chain and n is the spacer length of alkyl chain. It is confirmed that the nanostructure of HBC-1,3,5-Ph-DA-Cn can be polymerized in (i) solution and (ii) film by UV-irradiation or thermal treatment. HBC-1,3,5-Ph-DA-C12 exhibits a stable hexagonal columnar phase at 47°C which was used to...

Workshop / Thursday, 18.10.2018 09:00 to Friday, 19.10.2018 18:00

V. Petříček, M. Dušek, J. Rohlíček, Philippe Deniard 1) (1) University of Nancy, France)

This workshop covers basics of work with powder diffraction data of standard and modulated structures in program Jana2006. We will also present newly implemented methods for determination of crystallite size.

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