Multiwell Potential in a Trench-Type Quantum Point Contact

Autor:	D. I. Sarypov, D. A. Pokhabov, A. G. Pogosov, E. Yu. Zhdanov, A. K. Bakarov
Rok vydání:	2022
Předmět:	Physics and Astronomy (miscellaneous)
Zdroj:	JETP Letters. 116:360-366
ISSN:	1090-6487 0021-3640
Popis:	A physical mechanism has been proposed to explain the appearance of the multichannel electron transport regime in trench quantum point contacts. It has been shown that the redistribution of electrons in a two-dimensional electron gas, which is due to the Coulomb interaction between them and with charged donors and X-valley electrons, results in the experimentally observed multichannel regime. The numerical simulation of the redistribution of electrons and its comparison with the measurements of the conductance of trench quantum point contacts based on a GaAs/AlGaAs heterostructure demonstrate the formation of a multiwell confining potential.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::418ba30033d159f8ee99f460fb80d8f4 https://doi.org/10.1134/s0021364022601610 Zobrazit plný text záznamu Plný text ve formátu PDF