Ballistic hot-electron transport in a quantum Hall edge channel defined by a double gate

Autor:	Akiyama, Shunya, Hirasawa, Taichi, Sato, Yuya, Akiho, Takafumi, Muraki, Koji, Fujisawa, Toshimasa
Rok vydání:	2019
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
DOI:	10.1063/1.5126776
Popis:	Ballistic transport of hot electrons in a quantum Hall edge channel is attractive for studying electronic analog of quantum optics, where the edge potential profile is an important parameter that governs the charge velocity and scattering by longitudinal-optical (LO) phonons. Here we use a parallel double gate to control the electric field of the edge potential, and investigate the ballistic length of the channel by using hot-electron spectroscopy. The ballistic length is significantly enhanced by reducing the LO phonon scattering rate in the tailored potential. Comment: 6 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1912.03497 Zobrazit plný text záznamu View this record from Arxiv