Fyzikální ústav Akademie věd ČR

Seminars and workshops of department 23

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

Seminar / Tuesday, 09.06.2015 15:00 - 16:00

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

Seminar / Tuesday, 16.06.2015 15:00

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 and workshops
Alexander Shick Electronic structure and magnetic properties of selected transuranium compounds 16.04.2013 15:00
Pavel Augustinský Improved Measurement of Green's Function in Hybridization Expansion Continuous Time Quantum Monte Carlo. 09.04.2013 15:00
Jiří Klimeš Van der Waals forces in density functional theory 22.01.2013 15:00
Karel Král Electron-phonon interaction in the photoluminescence of quasi-zero dimensional nanostructures 27.11.2012 15:00
Petr Čársky Determination of Structure of Diamond Nanoparticles by means of ab initio Calculations of Vibrational Excitation by Electron Impact 30.10.2012 15:00
Christian Maes It increases with time - what is it? 23.10.2012 15:00
Leszek Jurczyszyn Theoretical studies of the adsorption and diffusion processes on W(111) and W(112) surfaces 16.10.2012 15:00
Josef Kudrnovský* Galvanomagnetic phenomena in random alloys: the first-principles approach 26.06.2012 15:00
A. Kalvová Transient electron currents through a molecular bridge in response to short switching sequences 19.06.2012 15:00
Bedřich Velický On The Weak Quantum Mechanical Measurements 05.06.2012 15:00
Jindřich Kolorenč Anderson impurity model in an external magnetic field 29.05.2012 15:00
František Máca The electronic and magnetic structure of Mn doped semiconductors and semimetals 22.05.2012 15:00
Vladislav Pokorný Vertex corrections to the electrical conductivity of the disordered Falicov-Kimball model 24.04.2012 15:00
Y.O. Kvashnin Ab initio study of 3d systems under high pressure 10.04.2012 15:00
Anna Kauch Spectral functions of correlated bosons in the dynamical mean-field theory 28.02.2012 15:00
Antonín Klíč Mean-field Theory of Potts Glass Revised 14.02.2012 15:00
Thomas Pruschke Téma: Monte-Carlo Approach to Stationary Non-equilibrium of Mesoscopic Systems 15.12.2011 15:00
Ivan Štich Quantum Monte-Carlo modeling of electronic correlation: Gound- and excited electronic states 15.11.2011 15:00
František Slanina Spectra and localization in random graphs 08.11.2011 15:00
Joachim Krug Records in a changing world 01.11.2011 14:00
Jakub Šebera Quantum Chemistry Study of Porphyrin and Phthalocyanine Systems within DFT Methods 25.10.2011 15:00
Pavel Augustinský Stability of Fermi liquid with respect to dynamical fluctuations in strongly correlated electron systems 18.10.2011 15:00
John E. Pask Enriched and high-order finite elements for large, accurate ab initio electronic structure calculations 04.10.2011 15:00
László Szunyogh Multiscale study of magnetism at the nanoscale: highlighting spin-orbit induced phenomena 30.09.2011 10:00
Ivo Nezbeda Modern statistical thermodynamics of fluids: State of the art, problems, and prospects 21.06.2011 15:00
Jiří Pešek Some aspects of non-equilibrium thermodynamics for small stochastic systems - part II 29.03.2011 15:00
Karel Netočný Some aspects of non-equilibrium thermodynamics for small stochastic systems - part I 15.03.2011 15:00
Balazs Ujfalussy Interactions between magnetic impurities on surfaces of noble metals and alloys 22.02.2011 15:00
Pavel Středa Anomalous Hall conductivity: local orbitals approach 15.02.2011 15:00
P. Wissgott Analysis of thermoelectric materials with LDA+DMFT 08.02.2011 15:00

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