Zobrazeno 1 - 10
of 5 130
pro vyhledávání: '"Slager, A."'
We investigate Riemannian quantum-geometric structures in semiclassical transport features of two-dimensional multigap topological phases. In particular, we study nonlinear Hall-like bulk electric current responses and, accordingly, semiclassical equ
Externí odkaz:
http://arxiv.org/abs/2412.01810
We investigate the interplay between self-duality and spatially modulated symmetry of generalized $N$-state clock models, which include the transverse-field Ising model and ordinary $N$-state clock models as special cases. The spatially modulated sym
Externí odkaz:
http://arxiv.org/abs/2411.04182
Excitons dominate the optoelectronic response of many materials. Depending on the timescale and host material, excitons can exhibit free diffusion, phonon-limited diffusion, or polaronic diffusion, and exciton transport often limits the efficiency of
Externí odkaz:
http://arxiv.org/abs/2410.00967
Autor:
Phong, Vo Tien, Kunkelmann, Kason, De Beule, Christophe, Ezzi, Mohammed M. Al, Slager, Robert-Jan, Adam, Shaffique, Mele, E. J.
A fundamental idea in wave mechanics is that propagation in a periodic medium can be described by Bloch waves whose conserved crystal momenta define their transformations when displaced by the set of discrete lattice translations. In ordered material
Externí odkaz:
http://arxiv.org/abs/2409.16602
Autor:
Kushnirenko, Yevhen, Kuthanazhi, Brinda, Schrunk, Benjamin, O'Leary, Evan, Eaton, Andrew, Slager, Robert-Jan, Ahn, Junyeong, Wang, Lin-Lin, Canfield, Paul C., Kaminski, Adam
Publikováno v:
Communications Materials 5, 245 (2024)
We perform angle-resolved photoemission spectroscopy (ARPES) measurements in conjunction with density functional theory (DFT) calculations to investigate the evolution of the electronic structure of CeBi upon a series of antiferromagnetic (AFM) trans
Externí odkaz:
http://arxiv.org/abs/2409.08125
We demonstrate that periodically driven quantum rotors provide a promising and broadly applicable platform to implement multi-gap topological phases, where groups of bands can acquire topological invariants due to non-Abelian braiding of band degener
Externí odkaz:
http://arxiv.org/abs/2408.16848
Following the recent interest in van der Waals (vdW) ferroelectrics, topologically nontrivial polar structures have been predicted to form in twisted bilayers. Due to the unconventional nature of vdW ferroelectricity, these topological polar structur
Externí odkaz:
http://arxiv.org/abs/2408.04017
Autor:
Wahl, Thorsten B., Jankowski, Wojciech J., Bouhon, Adrien, Chaudhary, Gaurav, Slager, Robert-Jan
We report on a class of gapped projected entangled pair states (PEPS) with non-trivial Euler topology motivated by recent progress in band geometry. In the non-interacting limit, these systems have optimal conditions relating to saturation of quantum
Externí odkaz:
http://arxiv.org/abs/2407.12902
The robustness of topological properties, such as quantized currents, generally depends on the existence of gaps surrounding the relevant energy levels or on symmetry-forbidden transitions. Here, we observe quantized currents that survive the additio
Externí odkaz:
http://arxiv.org/abs/2407.07049
Excitons drive the optoelectronic properties of organic semiconductors which underpin devices including solar cells and light-emitting diodes. We demonstrate that excitons can exhibit topologically non-trivial states and identify a family of organic
Externí odkaz:
http://arxiv.org/abs/2406.11951