From crystal chemistry to physical properties of some RT6X6 intermetallics with kagome lattice
- Date
- Nov 27, 2023
- Time
- 2:50 PM - 4:20 PM
- Speaker
- Vitaliy Romanka
- Affiliation
- IFW-Dresden
- Series
- TUD Physik-IFMP Institutsseminar
- Language
- en
- Main Topic
- Physik
- Other Topics
- Physik
- Host
- J. Geck
- Description
Abstract:
Electrons in a kagome lattice can form a unique band structure characterized by a flat band, which, if located near the Fermi level, can lead to a large effective electron mass and exotic transport or magnetic properties. Among the candidates for such materials are intermetallic compounds with 1:6:6 stoichiometry that crystallize in the hexagonal MgFe6Ge6-type structure. The talk is devoted to the experimentally observed off-stoichiometry and structural disorder effects that occur in some of these compounds, in particular, the isotypic series RCr6Ge6 (R — rare-earth element). The peculiarities of the chemical bonding in these compounds revealed by DFT modeling are compared to the simple crystal chemistry considerations to understand the origin of the disorder and their properties better. A comparison with other isotypic series is performed to show some common structural and bonding features.
BigBlueButton: https://bbb.tu-dresden.de/b/dar-mbs-me8-gsc (https://bbb.tu-dresden.de/b/dar-mbs-me8-gsc)
- Links
Last modified: Nov 27, 2023, 7:37:40 AM
Location
- Homepage
- https://navigator.tu-dresden.de/
Organizer
- Phone
- +49 351 463-33378
- Fax
- +49 351 463-37109
- TUD Physik
- Homepage
- http://tu-dresden.de/die_tu_dresden/fakultaeten/fakultaet_mathematik_und_naturwissenschaften/fachrichtung_physik
- Biology
- Chemistry
- Civil Eng., Architecture
- Computer Science
- Economics
- Electrical and Computer Eng.
- Environmental Sciences
- for Pupils
- Law
- Linguistics, Literature and Culture
- Materials
- Mathematics
- Mechanical Engineering
- Medicine
- Physics
- Psychology
- Society, Philosophy, Education
- Spin-off/Transfer
- Traffic
- Training
- Welcome