Hydrodynamic and ballistic transport over large length scales in GaAs/AlGaAs

Autor:	Gupta, Adbhut, Heremans, J. J., Kataria, Gitansh, Chandra, Mani, Fallahi, S., Gardner, G. C., Manfra, M. J.
Rok vydání:	2020
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. Lett. 126, 076803 (2021)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.126.076803
Popis:	We study hydrodynamic and ballistic transport regimes through nonlocal resistance measurements and high-resolution kinetic simulations in a mesoscopic structure on a high-mobility two-dimensional electron system in a GaAs/AlGaAs heterostructure. We evince the existence of collective transport phenomena in both regimes and demonstrate that negative nonlocal resistances and current vortices are not exclusive to only the hydrodynamic regime. The combined experiments and simulations highlight the importance of device design, measurement schemes and one-to-one modeling of experimental devices to demarcate various transport regimes. Comment: 3 figures and supplemental material
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2002.12806 Zobrazit plný text záznamu View this record from Arxiv