Терагерцовая фотопроводимость в графене в магнитном поле | Zendy

Ю.Б. Васильев | Zendy; С. В. Новиков | Zendy; S. N. Danilov | Zendy; Sergey Ganichev | Zendy

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Терагерцовая фотопроводимость в графене в магнитном поле

Author(s) -

Ю.Б. Васильев,

С. В. Новиков,

S. N. Danilov,

Sergey Ganichev

Publication year - 2020

Publication title -

физика и техника полупроводников

Language(s) - English

Resource type - Journals

eISSN - 1726-7315

pISSN - 0015-3222

DOI - 10.21883/ftp.2020.04.49146.9322

Subject(s) - terahertz radiation , photoconductivity , magnetic field , electron , materials science , signal (programming language) , condensed matter physics , scattering , relaxation (psychology) , optoelectronics , amplitude , electron scattering , physics , optics , psychology , social psychology , quantum mechanics , computer science , programming language

The terahertz photoconductivity in epitaxial graphene grown on SiC substrates is investigated in a magnetic field. The magnetic-field dependence of the photoresponse signal amplitude is examined at different electron densities, bias currents, and terahertz radiation intensities. The experimental results are explained well by a photoconductivity mechanism based on the heating of electrons by terahertz radiation. A strong increase in the photoconductivity signal with increasing magnetic field caused by an increase in the relaxation time due to the suppression of electron-electron scattering is observed.

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