Zobrazeno 1 - 10
of 238
pro vyhledávání: '"PaschEN, Silke"'
Autor:
Mazza, Federico, Biswas, Sounak, Yan, Xinlin, Prokofiev, Andrey, Steffens, Paul, Si, Qimiao, Assaad, Fakher F., Paschen, Silke
A strange metal is an exotic state of correlated quantum matter; intensive efforts are ongoing to decipher its nature. Here we explore whether the quantum Fisher information (QFI), a concept from quantum metrology, can provide new insight. We use ine
Externí odkaz:
http://arxiv.org/abs/2403.12779
Autor:
Fang, Yuan, Chen, Lei, Prokofiev, Andrey, Robredo, Iñigo, Cano, Jennifer, Vergniory, Maia G., Paschen, Silke, Si, Qimiao
Weyl-Kondo semimetals are strongly correlated topological semimetals that develop through the cooperation of the Kondo effect with space group symmetries. The Kondo effect, capturing quantum fluctuations associated with strong correlations, is usuall
Externí odkaz:
http://arxiv.org/abs/2403.02295
Autor:
Fang, Yuan, Mahankali, Mounica, Wang, Yiming, Chen, Lei, Hu, Haoyu, Paschen, Silke, Si, Qimiao
Strong correlations in matter promote a landscape of ground states and associated quantum critical points. For metallic systems, there is increasing recognition that the quantum criticality goes beyond the standard Landau framework and, thus, novel m
Externí odkaz:
http://arxiv.org/abs/2402.18552
Publikováno v:
Nature Reviews Materials, Published 20 February 2024
Flat band materials such as the kagome metals or moir\'e superlattice systems are of intense current interest. Flat bands can result from the electron motion on numerous (special) lattices and usually exhibit topological properties. Their reduced ban
Externí odkaz:
http://arxiv.org/abs/2312.10659
Autor:
Setty, Chandan, Xie, Fang, Sur, Shouvik, Chen, Lei, Paschen, Silke, Vergniory, Maia G., Cano, Jennifer, Si, Qimiao
The intersection of electronic topology and strong correlations offers a rich platform to discover exotic quantum phases of matter and unusual materials. An overarching challenge that impedes the discovery is how to diagnose strongly correlated elect
Externí odkaz:
http://arxiv.org/abs/2311.12031
Publikováno v:
J. Phys. Mater. 7 (2024) 012003
How strong correlations and topology interplay is a topic of great current interest. In this perspective paper, we focus on correlation-driven gapless phases. We take the time-reversal symmetric Weyl semimetal as an example because it is expected to
Externí odkaz:
http://arxiv.org/abs/2308.11318
Strange metals arise in a variety of platforms for strongly correlated electrons, ranging from the cuprates, heavy fermions to flat band systems. Motivated by recent experiments in kagome metals, we study a Hubbard model on a kagome lattice whose non
Externí odkaz:
http://arxiv.org/abs/2307.09431
Autor:
Huang, Zhao, Lane, Christopher, Grefe, Sarah E., Nandy, Snehasish, Fauseweh, Benedikt, Paschen, Silke, Si, Qimiao, Zhu, Jian-Xin
Dirac materials have been proposed as a new class of electron-based detectors for light dark-matter (DM) scattering or absorption, with predicted sensitivities far exceeding superconductors and superfluid helium. The superiority of Dirac materials or
Externí odkaz:
http://arxiv.org/abs/2305.19967
Autor:
Lužnik, Monika, Lientschnig, Günther, Taupin, Mathieu, Steiger-Thirsfeld, Andreas, Prokofiev, Andrey, Paschen, Silke
Publikováno v:
Crystals 13(3), 453 (2023)
Clathrates are a materials class with an extremely low phonon thermal conductivity, which is a key ingredient for a high thermoelectric conversion efficiency. Here, we present a study on the type-I clathrate La$_{1.2}$Ba$_{6.8}$Au$_{5.8}$Si$_{38.8}\s
Externí odkaz:
http://arxiv.org/abs/2302.04105
Autor:
Setty, Chandan, Sur, Shouvik, Chen, Lei, Xie, Fang, Hu, Haoyu, Paschen, Silke, Cano, Jennifer, Si, Qimiao
Publikováno v:
Phys. Rev. Research 6, L032018 (2024)
Lattice symmetries are central to the characterization of electronic topology. Recently, it was shown that Green's function eigenvectors form a representation of the space group. This formulation has allowed the identification of gapless topological
Externí odkaz:
http://arxiv.org/abs/2301.13870