91 citations · 341 across the 18 of their papers we have counts for
19 papers
Photogalvanic effect in monolayers of transition metal dichalcogenides
G. V. Budkin, E. L. Ivchenko
We present a theoretical study of photocurrents generated by direct optical transitions induced by linearly polarized radiation in monolayers of transition metal dichalcogenides. A…
Influence of Coulomb interaction on interband photogalvanic effect in semiconductors
G. V. Budkin, E. L. Ivchenko
The ballistic and shift contributions to the interband linear photogalvanic effect are calculated in the same band structure model of a noncentrosymmetric semiconductor. The calcul…
Splitting of Dirac cones in HgTe quantum wells: Effects of crystallographic orientation, interface-, bulk-, and structure-inversion asymmetry
M. V. Durnev, G. V. Budkin, S. A. Tarasenko
We develop a microscopic theory of the fine structure of Dirac states in -grown HgTe/CdHgTe quantum wells (QWs), where and are the Miller indices. It is shown that b…
THz ratchet effect in HgTe interdigitated structures
I. Yahniuk, G. V. Budkin, A. Kazakov +9
The emergence of ratchet effects in two-dimensional materials is strongly correlated with the introduction of asymmetry into the system. In general, dual-grating-gate structures fo…
Spin splitting in low-symmetry quantum wells beyond Rashba and Dresselhaus terms
G. V. Budkin, S. A. Tarasenko
Spin-orbit interaction in semiconductor structures with broken space inversion symmetry leads to spin splitting of electron and hole states even in the absence of magnetic field. W…
Hot exciton relaxation in coupled ultra-thin CdTe/ZnTe quantum well structures
V. Agekyan, G. Budkin, M. Chukeev +4
The photoluminescence (PL) and PL excitation (PLE) spectra of CdTe/ZnTe asymmetric double quantum well (QW) structures are studied on a series of samples containing two CdTe layers…
Impact ionization induced by terahertz radiation in HgTe quantum wells of critical thickness
S. Hubmann, G. V. Budkin, M. Urban +9
We report on the observation of terahertz (THz) radiation induced band-to-band impact ionization in \HgTe quantum well (QW) structures of critical thickness, which are characterize…
Terahertz Magnetospectroscopy of Cyclotron Resonances from Topological Surface States in Thick Films of CdHgTe
M. Otteneder, D. Sacré, I. Yahniuk +10
We present studies of the cyclotron resonance (CR) in thick CdHgTe films with different cadmium concentrations corresponding to inverted and normal band order, as well…
Symmetry breaking and circular photogalvanic effect in epitaxial CdHgTe films
S. Hubmann, G. V. Budkin, M. Otteneder +13
We report on the observation of symmetry breaking and the circular photogalvanic effect in CdHgTe alloys. We demonstrate that irradiation of bulk epitaxial films with c…
Thermal generation of shift electric current
G. V. Budkin, S. A. Tarasenko
It is shown that the dissipation of energy in an electron gas confined in a quantum well made of non-centrosymmetric crystal leads to a direct electric current. The current origina…
Cyclotron resonance induced photogalvanic effect in surface states of 200 nm thick strained HgTe films
S. Candussio, G. V. Budkin, M. Otteneder +7
We report on the study of magneto-photogalvanic and magnetotransport phenomena in 200 nm partially strained HgTe films. This thickness is slightly larger than the estimated critica…
High frequency impact ionization and nonlinearity of photocurrent induced by intense terahertz radiation in HgTe-based quantum well structures
S. Hubmann, G. V. Budkin, A. P. Dmitriev +10
We report on a strong nonlinear behavior of the photogalvanics and photoconductivity under excitation of HgTe quantum wells (QWs) by intense terahertz (THz) radiation. The increasi…
Circular and linear magnetic quantum ratchet effects in dual-grating-gate CdTe-based nanostructures
P. Faltermeier, G. V. Budkin, S. Hubmann +9
We report on the observation and systematic study of polarization sensitive magnetic quantum ratchet effects induced by alternating electric fields in the terahertz frequency range…
Magnetic quantum ratchet effect in (Cd,Mn)Te- and CdTe-based quantum well structures with a lateral asymmetric superlattice
P. Faltermeier, G. V. Budkin, J. Unverzagt +13
We report on the observation of magnetic quantum ratchet effect in (Cd,Mn)Te- and CdTe-based quantum well structures with an asymmetric lateral dual grating gate superlattice subje…
Ratchet transport of a two-dimensional electron gas at cyclotron resonance
G. V. Budkin, S. A. Tarasenko
The driving of charge carriers confined in a quantum well lacking the center of space inversion by an alternating electric field leads to the formation of a direct electric current…
Cyclotron Resonance Assisted Photocurrents in Surface States of a 3D Topological Insulator Based on a Strained High Mobility HgTe Film
K. -M. Dantscher, D. A. Kozlov, P. Olbrich +12
We report on the observation of cyclotron resonance induced photocurrents, excited by continuous wave terahertz radiation, in a 3D topological insulator (TI) based on an 80 nm stra…
Orbital magnetic ratchet effect
G. V. Budkin, L. E. Golub
Magnetic ratchets -- two-dimensional systems with superimposed non-centrosymmetric ferromagnetic gratings -- are considered theoretically. It is demonstrated that excitation by rad…
Cyclotron-resonance-assisted photon drag effect in InSb/InAlSb quantum wells excited by terahertz radiation
S. Stachel, G. V. Budkin, U. Hagner +7
We report on the observation of the cyclotron-resonance-assisted photon drag effect. Resonant photocurrent is detected in InSb/InAlSb quantum wells structures subjected to a static…
Giant spin-polarized current in a Dirac fermion system at cyclotron resonance
P. Olbrich, C. Zoth, P. Vierling +9
We report on the observation of the giant spin-polarized photocurrent in HgTe/HgCdTe quantum well (QW) of critical thickness at which a Dirac spectrum emerges. Exciting QW of 6.6 n…