TKM Institutsseminar |
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Vortragender: | Veronika Stangier |
Datum: | 25.02.2021 14:00 |
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Ort: | online |
Zugehörigkeit: | TKM |
Gastgeber: | Prof. Schmalian |
Abstract
Normally, a single point on fermi surface does not influence the transport properties of a system. However there are exceptions to this rule. In this talk we discuss a single band tight binding model where the fermi surface crosses a van Hove point. We show that this van Hove singularity can cause a change in the temperature dependence of the conductivity of the system over a large temperature scale. This behavior extends to all temperature scales if we take additional bands into account which we demonstrate with the specific example of Strontium Ruthenate.