Photogalvanic effects in quantum wells

Ganichev, Sergey; Ivchenko, E. L.; Prettl, Wilhelm

doi:10.1016/s1386-9477(02)00371-5

Cited by 80 publications

(76 citation statements)

References 13 publications

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“…These measurements were particularly motivated by the search for the circular photogalvanic [14,68,69] and circular photon drag effects [70,71], i.e., photocurrents changing their direction upon switching of the radiation helicity [10,11,13], recently observed for Bi 2 Te 3 TI excited by near-infrared light [30]. Applying radiation at oblique incidence and measuring the photocurrent in the direction normal to the plane of incidence (yz), i.e., in the geometry for which circular photogalvanic [30,72,73] and circular photon drag effects [13,70] are expected, we detected a current which can be well fitted by J x = A x (f )(cos 4ϕ + 1)/2 (see Fig. 9).…”

Section: Resultsmentioning

confidence: 99%

Photon drag effect in(Bi1−xSbx)2Te3three-dimensional topological insulators

et al. 2016

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We report on the observation of a terahertz radiation-induced photon drag effect in epitaxially grown nand p-type (Bi 1−x Sb x ) 2 Te 3 three-dimensional topological insulators with different antimony concentrations x varying from 0 to 1. We demonstrate that the excitation with polarized terahertz radiation results in a dc electric photocurrent. While at normal incidence a current arises due to the photogalvanic effect in the surface states, at oblique incidence it is outweighed by the trigonal photon drag effect. The developed microscopic model and theory show that the photon drag photocurrent can be generated in surface states. It arises due to the dynamical momentum alignment by time-and space-dependent radiation electric field and implies the radiation-induced asymmetric scattering in the electron momentum space. We show that the photon drag current may also be generated in the bulk. Both surface states and bulk photon drag currents behave identically upon variation of such macroscopic parameters as radiation polarization and photocurrent direction with respect to the radiation propagation. This fact complicates the assignment of the trigonal photon drag effect to a specific electronic system.

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Section: Resultsmentioning

confidence: 99%

Photon drag effect in(Bi1−xSbx)2Te3three-dimensional topological insulators

et al. 2016

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“…It also has a large potential for the development of an all-electric detector of the radiation's polarization state, which was so far realized applying less sensitive photogalvanic effects only. [29][30][31][32] The observed phenomena is discussed in the framework of electronic ratchet 20,22,[24][25][26] and plasmonic ratchet effects excited in a 2D electron system with a spatially periodic dc in-plane potential. 9,22,27 …”

Section: Introductionmentioning

confidence: 99%

Helicity sensitive terahertz radiation detection by dual-grating-gate high electron mobility transistors

Faltermeier

Olbrich

Probst

et al. 2015

Journal of Applied Physics

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Ultrahigh sensitive sub-terahertz detection by InP-based asymmetric dual-grating-gate high-electron-mobility transistors and their broadband characteristics Appl. Phys. Lett. 104, 251114 (2014) We report on the observation of a radiation helicity sensitive photocurrent excited by terahertz (THz) radiation in dual-grating-gate (DGG) InAlAs/InGaAs/InAlAs/InP high electron mobility transistors (HEMT). For a circular polarization, the current measured between source and drain contacts changes its sign with the inversion of the radiation helicity. For elliptically polarized radiation, the total current is described by superposition of the Stokes parameters with different weights. Moreover, by variation of gate voltages applied to individual gratings, the photocurrent can be defined either by the Stokes parameter defining the radiation helicity or those for linear polarization. We show that artificial non-centrosymmetric microperiodic structures with a twodimensional electron system excited by THz radiation exhibit a dc photocurrent caused by the combined action of a spatially periodic in-plane potential and spatially modulated light. The results provide a proof of principle for the application of DGG HEMT for all-electric detection of the radiation's polarization state. V C 2015 AIP Publishing LLC. [http://dx

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“…The CPGE (Figure 3f) uses a circularly polarized light to generate an unbalanced occupation in momentum space of the excited carriers because of the band splitting and spin textures induced by the Rashba and/or Dresselhaus effects. [101][102][103] In the SGE (Figure 3-g), the electric current is caused by the out-of-equilibrium spin polarization of the system. It can be created either by the injection of a spin-current or by optical excitation.…”

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confidence: 99%

Rashba and Dresselhaus Couplings in Halide Perovskites: Accomplishments and Opportunities for Spintronics and Spin–Orbitronics

Képénékian

Even

2017

J. Phys. Chem. Lett.

174

181

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In halide hybrid organic-inorganic perovskites (HOP), spin-orbit coupling (SOC) presents a well-documented large influence on band structure. However, SOC may also present more exotic effects, such as Rashba and Dresselhaus couplings. In this perspective, we start by recalling the main features of this effect and what makes HOP materials ideal candidates for the generation and tuning of spin-states. Then, we detail the main spectroscopy techniques able to characterize these effects and their application to HOP. Finally, we discuss potential applications in spintronics and in spin-orbitronics in those non-magnetic systems, that would complete the skill set of HOP and perpetuate its ride on the crest of the wave of popularity started with optoelectronics and photovoltaics. Graphical TOC EntryPage 2 of 29 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 A c c e p t e d m a n u s c r i p tThe continuous success of halide hybrid organic-inorganic perovskites (HOP) as solar cell active materials follows several paths. The main activity after 2012 consisted in the search for improvement of the power conversion efficiency (PCE) in typical laboratory configuration (small area, controlled environment). It led to an unprecedented growth of the PCE that has repeatedly reached record values over 22%. 1,2 Meanwhile, another branch of HOP studies have been focused on improving the stability of those cells unfortunately sensitive to light and moisture. 3,4 Opting for various mixtures of halide and cations, 2 various forms, e.g. layered HOP, [5][6][7] or by encapsulating the materials, the stability went from few hours to several thousands hours. Encouraged by these breakthroughs, a third path has pushed the area of hight performance solar cells from less than 1 cm 2 up to 50 cm 2 with a PCE of 12.6%, 8 bringing the perovskite solar cells even closer to commercial use.A common point to all these record HOP materials is the presence of lead. Even though a large effort has been and still is dedicated to the search for efficient lead-free HOP materials, 9,10 their current record PCE remains around 6.4%. 11 It is certainly unfortunate for solar cells because of the known toxicity of lead, 12 even though solutions have early been proposed, 13,14 however, due to the large spin-orbit coupling (SOC) exhibited by Pb, it represents a great opportunity for optoelectronics, spintronics and spin-orbitronics applications where undesired heavy elements can find a place (e.g. arsenic, cadmium).The first identified effect of SOC in HOP materials has been a surprising giant splitting of conduction bands, 15,16 instead of the usual valence band splitting observed in classical semiconductors. 17 It has a strong influence on the band gap energy as well as on the effective masses and the oscillator strength of the optical transitions at the band gap. The chan...

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Photogalvanic effects in quantum wells

Cited by 80 publications

References 13 publications

Photon drag effect in(Bi1−xSbx)2Te3three-dimensional topological insulators

Photon drag effect in(Bi1−xSbx)2Te3three-dimensional topological insulators

Helicity sensitive terahertz radiation detection by dual-grating-gate high electron mobility transistors

Rashba and Dresselhaus Couplings in Halide Perovskites: Accomplishments and Opportunities for Spintronics and Spin–Orbitronics

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