Phase competition in quantum materials with higher order van Hove singularities by Alkistis Zervou

“…We present a very general scenario in order to study the fate of the SDW phase primarily formed between the nearly nested patches in the case when a higher order Van Hove singularity emerges as the chemical potential is tuned. …”
Get full text

Fate of density waves in the presence of a higher-order van Hove singularity by Alkistis Zervou, Dmitry Efremov, Joseph Betouras

“…In addition to the regular van Hove singularities, there are higher-order van Hove singularities (HOVHS) with a power-law divergence in DOS. …”
Get full text

Supplementary information files for Fate of density waves in the presence of a higher-order van Hove singularity by Alkistis Zervou, Dmitry Efremov, Joseph Betouras

“…Supplementary files for article Fate of density waves in the presence of a higher-order van Hove singularityTopological transitions in electronic band structures, resulting in van Hove singularities in the density of states, can considerably affect various types of orderings in quantum materials. …”
Get full text

Multicritical Fermi Surface Topological Transitions by Dmitry Efremov, Alex Shtyk, Andreas W Rost, Claudio Chamon, Andrew P Mackenzie, Joseph Betouras

“…A well-known example occurs at van Hove singularities where the Fermi surface undergoes a topological transition. …”
Get full text