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Terahertz resistive response of a two-dimensional topological insulator in a quasiballistic transport regime

Kvon, Z. D. ; Dantscher, K.-M. ; Scherr, M.-T. ; Yaroshevich, A. S. ; Mikhailov, N. N.



Abstract

The terahertz resistive response of a two-dimensional topological insulator in a HgTe quantum well in the quasiballistic transport regime is studied. The photoresistance appearing only near the charge neutrality point is detected. The application of the magnetic field up to 4 T in the plane of the quantum well results in an increase in the photoresistance in the peak and in the expansion of the ...

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