Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Silke Biermann"'
Autor:
Soyeun Kim, Steffen Backes, Hyojin Yoon, Woojin Kim, Changhee Sohn, Junwoo Son, Silke Biermann, Tae Won Noh, Se Young Park
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-7 (2022)
Abstract Materials displaying metal-insulator transitions (MITs) as a function of external parameters such as temperature, pressure, or composition are most intriguing from the fundamental point of view and also hold high promise for applications. Va
Externí odkaz:
https://doaj.org/article/6a6907bdb7fd44b890e61bcf844e3f95
Autor:
Anna Galler, Semih Ener, Fernando Maccari, Imants Dirba, Konstantin P. Skokov, Oliver Gutfleisch, Silke Biermann, Leonid V. Pourovskii
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-7 (2021)
Abstract Cerium-based intermetallics are currently attracting much interest as a possible alternative to existing high-performance magnets containing scarce heavy rare-earth elements. However, the intrinsic magnetic properties of Ce in these systems
Externí odkaz:
https://doaj.org/article/46b5255889cd499da05044f96270329c
Publikováno v:
SciPost Physics, Vol 14, Iss 1, p 010 (2023)
We investigate the tetragonal phase of the binary transition metal oxide CuO (t-CuO) within the context of cellular dynamical mean-field theory. Due to its strong antiferromagnetic correlations and simple structure, analysing the physics of t-CuO is
Externí odkaz:
https://doaj.org/article/516866c7371c4cdca44446dd538ff7c1
Autor:
Juan Trastoy, Franck Fortuna, Silke Biermann, Yoav Kalcheim, Patrick Le Fèvre, Ivan K. Schuller, Maximilian Thees, Hiroshi Kumigashira, Min Han Lee, Marcelo J. Rozenberg, Emmanouil Frantzeskakis, Koji Horiba, Alexandre Zimmers, Andrés F. Santander-Syro, Rosa Luca Bouwmeester, Emma David, Pedro H. Rezende-Gonçalves, Nicolás Vargas
Publikováno v:
Science Advances
Science advances, 7(45):eabj1164. American Association for the Advancement of Science
Science advances, 7(45):eabj1164. American Association for the Advancement of Science
Description
This work shows how itinerant electrons localize due to increased interactions across the Mott metal-insulator transition.
In solids, strong repulsion between electrons can inhibit their movement and result in a “Mott” metal
This work shows how itinerant electrons localize due to increased interactions across the Mott metal-insulator transition.
In solids, strong repulsion between electrons can inhibit their movement and result in a “Mott” metal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::155b99f29762e69ad6fcd220ecffa9bb
http://arxiv.org/abs/2207.04287
http://arxiv.org/abs/2207.04287
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2021, 103 (24), L241105 (6 p.). ⟨10.1103/physrevb.103.l241105⟩
Physical Review B, American Physical Society, 2021, 103 (24), L241105 (6 p.). ⟨10.1103/physrevb.103.l241105⟩
The coexistence of Mott localized $f$ states with wide conduction and valence bands in $f$-electron semiconductors results, quite generically, in a complex optical response with the nature of the absorption edge difficult to resolve both experimental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::424cda8a25a7e33ff2e128192390c77e
http://hdl.handle.net/20.500.12278/109313
http://hdl.handle.net/20.500.12278/109313
Autor:
Silke Biermann, Jakob Steinbauer
The treatment of intershell interactions remains a major challenge in the theoretical description of strongly correlated materials. Most previous approaches considered the influence of intershell interactions at best in a static fashion, neglecting d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34e1db683b58c690cd796196ed9967f5
http://arxiv.org/abs/2105.06720
http://arxiv.org/abs/2105.06720
In rare-earth semiconductors, wide ligand $p$ and rare-earth 5$d$ bands coexist with localized, partially filled 4$f$ shells. A simultaneous description for both extended and localized states represents a significant challenge for first-principles th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::507f8d07b70e28002429f2ed759c4b6a
Autor:
I. Leonov, Silke Biermann
Publikováno v:
Phys. Rev. B
Physical Review B
Physical Review B
We explore the interplay of electron-electron correlations and surface effects in the prototypical correlated insulating material, NiO. In particular, we compute the electronic structure, magnetic properties, and surface energies of the $(001)$ and $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9462df365d1c0f08d11ca5b40ed735e
Motivated by the intriguing physics of quasi-2d fermionic systems, such as high-temperature superconducting oxides, layered transition metal chalcogenides or surface or interface systems, the development of many-body computational methods geared at i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc0fc346c2cffeaa3a12fe2b1fc5a12c
http://arxiv.org/abs/2011.05311
http://arxiv.org/abs/2011.05311
Publikováno v:
Physical Review Letters
Characterizing non-local magnetic fluctuations in materials with strong electronic Coulomb interactions remains one of the major outstanding challenges of modern condensed matter theory. In this work we address the spatial symmetry and orbital struct