Excitation of a topological insulator by a high‐frequency electric field of a laser radiation
leads to a dc electric current in the helical edge channel whose direction and magnitude are …

We report on the observation of cyclotron-resonance-induced photocurrents, excited by
continuous wave terahertz radiation, in a three-dimensional topological insulator (TI) based …

We present theoretical investigations of pressure-and temperature-driven phase transitions
in HgTe quantum wells grown on a CdTe buffer. Using the eight-band k· p Hamiltonian we …

The spin orientation of electronic wave functions in crystals is an internal degree of freedom,
typically insensitive to electrical knobs. We argue from a general symmetry analysis and ak …

We report on the observation of a circular photogalvanic current excited by terahertz laser
radiation in helical edge channels of two-dimensional (2D) HgTe topological insulators (TIs) …

We present a theory of the electron structure and the Zeeman effect for the helical edge
states emerging in two-dimensional topological insulators based on HgTe/HgCdTe quantum …

We report on the temperature-dependent magnetospectroscopy of two HgTe/CdHgTe
quantum wells below and above the critical well thickness dc. Our results, obtained in …

We study a topological phase transition between a normal insulator and a quantum spin Hall
insulator in two-dimensional (2D) systems with time-reversal and twofold rotation …

We propose a minimal effective two-dimensional Hamiltonian for HgTe/CdHgTe quantum
wells (QWs) describing the side maxima of the first valence subband. By using the …

Energy spectra both of the conduction and valence bands of the HgTe quantum wells with a
width close to the Dirac point were studied experimentally. Simultaneous analysis of the …