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Giant Terahertz Photoconductance of Quantum Point Contacts in the Tunneling Regime

Otteneder, M., Kvon, Z. D., Tkachenko, O. A., Tkachenko, V. A., Jaroshevich, A. S., Rodyakina, E. E., Latyshev, A. V. and Ganichev, Sergey (2018) Giant Terahertz Photoconductance of Quantum Point Contacts in the Tunneling Regime. Phys. Rev. Applied 10, 014015.

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Date of publication of this fulltext: 18 Jul 2019 13:52

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Other URL: https://link.aps.org/doi/10.1103/PhysRevApplied.10.014015, https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.10.014015


We report on the observation of the giant photoconductance of a quantum point contact (QPC) in the tunneling regime excited by terahertz radiation. Studied QPCs are formed in a GaAs/(Al,Ga)As heterostructure with a high-electron-mobility two-dimensional electron gas. We demonstrate that irradiation of strongly negatively biased QPCs by laser radiation with frequency f=0.69THz and intensity ...


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Item type:Article
Date:July 2018
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Projects:SFB 1277: Emergente relativistische Effekte in der Kondensierten Materie: Von grundlegenden Aspekten zu elektronischer Funktionalität
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Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:40539
Owner only: item control page


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