Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Arne Schobert"'
Publikováno v:
SciPost Physics, Vol 16, Iss 2, p 046 (2024)
The interplay of electronic and nuclear degrees of freedom presents an outstanding problem in condensed matter physics and chemistry. Computational challenges arise especially for large systems, long time scales, in nonequilibrium, or in systems with
Externí odkaz:
https://doaj.org/article/09aae86098444fb5919d5b426ed8bb4d
Autor:
Camiel van Efferen, Jan Berges, Joshua Hall, Erik van Loon, Stefan Kraus, Arne Schobert, Tobias Wekking, Felix Huttmann, Eline Plaar, Nico Rothenbach, Katharina Ollefs, Lucas Machado Arruda, Nick Brookes, Gunnar Schönhoff, Kurt Kummer, Heiko Wende, Tim Wehling, Thomas Michely
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
A charge density wave (CDW) normally creates a gap at the Fermi level, inducing a metal-insulator transition. Here, the authors report that a CDW gap resides in the unoccupied states but induces a topological metal-metal transition at the Fermi level
Externí odkaz:
https://doaj.org/article/0fe1cd1e04ef4ca6be5f8efac4c2e22e
Publikováno v:
SciPost Physics, Vol 11, Iss 4, p 079 (2021)
Charge-density waves are responsible for symmetry-breaking displacements of atoms and concomitant changes in the electronic structure. Linear response theories, in particular density-functional perturbation theory, provide a way to study the effec
Externí odkaz:
https://doaj.org/article/5dbe3e4ff3c84179a36b1bf4217aeab8
Autor:
Camiel, van Efferen, Jan, Berges, Joshua, Hall, Erik, van Loon, Stefan, Kraus, Arne, Schobert, Tobias, Wekking, Felix, Huttmann, Eline, Plaar, Nico, Rothenbach, Katharina, Ollefs, Lucas Machado, Arruda, Nick, Brookes, Gunnar, Schönhoff, Kurt, Kummer, Heiko, Wende, Tim, Wehling, Thomas, Michely
Publikováno v:
Nature Communications
In the standard model of charge density wave (CDW) transitions, the displacement along a single phonon mode lowers the total electronic energy by creating a gap at the Fermi level, making the CDW a metal–insulator transition. Here, using scanning t