2012年5月29日
Shot noise suppression in InGaAs/InGaAsP quantum channels
APPLIED PHYSICS LETTERS
- ,
- ,
- ,
- ,
- ,
- 巻
- 100
- 号
- 20
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1063/1.4718934
- 出版者・発行元
- AMER INST PHYSICS
We have measured the shot noise in a quantum point contact (QPC) fabricated
by using InGaAs/InGaAsP heterostructure, whose conductance can be electrically
tuned by the gate voltages. The reduced shot noise is observed when the QPC
conductance equals to N(2e^2/h) (N=4, 5, and 6), which is the direct
experimental evidence of the coherent quantized channel formation in the QPC.
The deviation of the observed Fano factor from the theory is explained by the
electron heating effect generated at the QPC.
by using InGaAs/InGaAsP heterostructure, whose conductance can be electrically
tuned by the gate voltages. The reduced shot noise is observed when the QPC
conductance equals to N(2e^2/h) (N=4, 5, and 6), which is the direct
experimental evidence of the coherent quantized channel formation in the QPC.
The deviation of the observed Fano factor from the theory is explained by the
electron heating effect generated at the QPC.
- リンク情報
-
- DOI
- https://doi.org/10.1063/1.4718934
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201202229271304042
- arXiv
- http://arxiv.org/abs/arXiv:1205.6271
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000304265000067&DestApp=WOS_CPL
- URL
- http://arxiv.org/abs/1205.6271v2
- URL
- http://arxiv.org/pdf/1205.6271v2 本文へのリンクあり
- ID情報
-
- DOI : 10.1063/1.4718934
- ISSN : 0003-6951
- J-Global ID : 201202229271304042
- arXiv ID : arXiv:1205.6271
- Web of Science ID : WOS:000304265000067