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Semináře

Pátek, 24.05.2019 09:00 - 11:00

Dr. Stefan Zollner (Academic Department Head and Professor, New Mexico State University, Las Cruces, NM, USA)

Dr. Stefan Zollner will give a series of public lectures on Optical Properties of Solids for the Institute of Physics. The lectures will be recorded and placed online and it will be possible to follow individual lectures.

Part VIII covers the following topics: Free electrons, effective masses in semiconductors, direct-gap absorption, excitons.

The lectures follow the textbook by Mark Fox “Optical Properties of Solids”, with additional materials by the instructor to make the lectures more self-contained, especially for scientists from other disciplines. They...

Úterý, 28.05.2019 10:00

Libor Veis (J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223 Prague 8, Czech Republic)

In the first part of the talk, I will review basic concepts of quantum chemical density matrix renormalization group (QC-DMRG), the method of choice for calculations of strongly correlated molecular systems, which is especially suitable for treatment of one-dimensional and quasi one-dimensional problems. I will also present our recent developments on local orbital optimization matching the two-site DMRG scheme [1] and introduce MOLMPS, the massively parallel QC-DMRG implementation which is currently under development [2].

In the second part, I will introduce the recently developed...

Úterý, 28.05.2019 15:00

Alexander Poteryaev (Institute of Metal Physics, Urals Division of Russian Academy of Sciences, Yekaterinburg, Russian Federation)

Abstract: Engineering novel materials with specific electronic, magnetic, optical or transport properties is a challenge for material science. It relies crucially on our understanding of the underlying physical mechanisms. Increasing our knowledge about electronic and magnetic properties of materials has thus immediate impact onto possible technological advances. The DFT+DMFT approach, which is a combination of the Dynamical Mean Field Theory and the Density Functional Theory is a powerful tool to study from first principles the magnetic and electronic properties of strongly...

Čtvrtek, 30.05.2019 14:00

Jiří Kaštil

In recent years, the search for new materials suitable for preparation of rare-earth-free permanent magnets has led to a renewed interest in the magnetic properties of Fe compounds with an anisotropic crystal structure, which may promise sizeable magnetic anisotropy and high Curie temperature. The Fe5SiB2 phase was discovered in 1960 by B. Aronsson and I. Engström. It possess a high Curie temperature of 845 K and a high value of saturated magnetization of about 9 μB / f.u.. The compound crystallizes in the tetragonal crystal structure of Cr5...

Pátek, 14.06.2019 09:00 - 11:00

Dr. Stefan Zollner (Academic Department Head and Professor, New Mexico State University, Las Cruces, NM, USA)

Dr. Stefan Zollner will give a series of public lectures on Optical Properties of Solids for the Institute of Physics. The lectures are recorded and placed online including other materials.

Part IX covers the following topics: Interband transitions, van Hove singularities, critical-point lineshapes.

The lectures follow the textbook by Mark Fox “Optical Properties of Solids”, with additional materials by the instructor to make the...

Pátek, 21.06.2019 09:00 - 11:00

Dr. Stefan Zollner (Academic Department Head and Professor, New Mexico State University, Las Cruces, NM, USA)

Dr. Stefan Zollner will give a series of public lectures on Optical Properties of Solids for the Institute of Physics. The lectures are recorded and placed online including other materials.

Part X covers the following topics: Photoluminescence, Einstein coefficients, quantum confinement, quantum wells, wires, and dots.

The lectures follow the textbook by Mark Fox “Optical Properties of Solids”, with additional materials by the...

Pátek, 28.06.2019 09:00 - 11:00

Dr. Stefan Zollner (Academic Department Head and Professor, New Mexico State University, Las Cruces, NM, USA)

Dr. Stefan Zollner will give a series of public lectures on Optical Properties of Solids for the Institute of Physics. The lectures are recorded and placed online including other materials.

Part XI covers the following topics: Applications I: Anisotropic material.

The lectures follow the textbook by Mark Fox “Optical Properties of Solids”, with additional materials by the instructor to make the lectures more self-contained,...

Pátek, 12.07.2019 09:00 - 11:00

Dr. Stefan Zollner (Academic Department Head and Professor, New Mexico State University, Las Cruces, NM, USA)

Dr. Stefan Zollner will give a series of public lectures on Optical Properties of Solids for the Institute of Physics. The lectures are recorded and placed online including other materials.

Part XII covers the following topics: Applications II: Properties of thin films, stress/strain, deformation potentials.

The lectures follow the textbook by Mark Fox “Optical Properties of Solids”, with additional materials by the instructor to...