Inauguration colloquium, Leipzig University, Germany (June 13, 2023)
The weaving pattern of traditional Japanese baskets has profound influence on solid-state physics.
This talk introduced two major research areas associated with the
kagome geometry:
- kagome magnets and the search for quantum spin liquid
- kagome metals and the fate of unconventional superconductivity therein
and showed unexpected manifestations of kagome materials, including cabalistic star-of-David patterns of charge-density waves
and the occurrence of kagome minerals on extraterrestrial planets.
or everything you wanted to know about spin liquids but were afraid to ask
TRR80 summer school, Fraueninsel am Chiemsee, Germany (June 25, 2019)
Is frustrated magnetism a frustrating topic? Not necessarily. This lecture addressed one of its most intriguing aspects,
the exotic state of quantum spin liquid, and covered some of the most common questions asked by newcomers:
- what is a spin liquid?
- how to observe it?
- what are implications of the spin-liquid state?
This lecture was part of the summer school organized by the
TRR80 consortium "From correlations to functionality" supported by DFG
University of Lille, France (November 23, 2018)
Magnetic property characterization has become a routine part of the solid-state chemistry work, yet many chemists never go further
than collecting their observations obtained using MPMS/PPMS and storing these data in publications. This lecture sought to broaden
chemist's view of the magnetic behavior and explain:
- what to measure and how to interpret the results?
- what can be calculated ab initio?
- how to deal with magnetic models and connect ab initio results to the experiment?
The lecture was given on the invitation by Olivier Mentré and supported by the University of Lille
University of Lille, France (November 26, 2018)
Disorder and minor structural details: are they important for magnetism? Yes, they are,
and structural phase transitions can be one way of detecting such issues. This lecture gave some (hopefully instructive) examples
of ambiguities in published crystal structures and their repercussions for the low-temperature physics research. It also gives
hints on how to deal with structural phase transitions when they are encountered in solid-state chemistry work.
Support by Olivier Mentré and University of Lille is gratefully acknowleged