Efficacy of proposed 2DEG-based photoconductive antenna using magnetic bias-controlled carrier transport
Sign Up to like & getrecommendations! Published in 2019 at "Current Applied Physics"
DOI: 10.1016/j.cap.2019.04.003
Abstract: Abstract An externally applied magnetic field was used to induce increased photocarrier transport along the high mobility channel in GaAs/AlGaAs modulation-doped heterostructures (MDH). The terahertz (THz) emission from GaAs/AlGaAs MDH increases with increasing magnetic field,… read more here.
Keywords: magnetic field; field; carrier transport; gaas algaas ... See more keywords
Improved and tunable optical absorption characteristics of MQW GaAs/AlGaAs nano-scale heterostructure
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2020.164544
Abstract: Abstract In this article, we report the significant improvement with the tunable character of optical absorption characteristics of MQW (multi quantum well) GaAs/AlGaAs nano-scale heterostructure. The improvement and tunability of the optical characteristics have been… read more here.
Keywords: absorption; optical absorption; absorption characteristics; characteristics mqw ... See more keywords
Performance improvement of junctionless field effect transistors using p-GaAs/AlGaAs heterostructure
Sign Up to like & getrecommendations! Published in 2017 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2017.08.023
Abstract: Abstract The performance analysis of junctionless (JL) gate-all-around (GAA) metal oxide semiconductor field effect transistors (MOSFETs) is investigated using the Non-Equilibrium Green's Function (NEGF) formalism. The main problem of JL transistors is found to be… read more here.
Keywords: state current; gaas algaas; performance; effect transistors ... See more keywords
Electronic and optical properties of GaAs/AlGaAs Fibonacci ordered multiple quantum well systems
Sign Up to like & getrecommendations! Published in 2017 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2017.10.029
Abstract: Abstract We numerically investigated the optical rectification coefficients (ORCs), transmission coefficient, energy levels and corresponding eigen-functions of GaAs/AlGaAs Fibonacci ordered multiple quantum well systems (FO-MQWs) in the presence of an external electric field. In our… read more here.
Keywords: ordered multiple; multiple quantum; algaas fibonacci; fibonacci ordered ... See more keywords
Scaling of the breakdown in the impurity band of doped GaAs/AlGaAs quantum well demonstrating virtual Anderson transition
Sign Up to like & getrecommendations! Published in 2017 at "Solid State Communications"
DOI: 10.1016/j.ssc.2017.05.010
Abstract: Abstract We observed breakdown behavior for highly doped and low compensated p-type layers located within the central part of GaAs/AlGaAs quantum wells at rather small values of the applied bias. This behavior is attributed to… read more here.
Keywords: impurity band; gaas algaas; algaas quantum;
Optimization of GaAs/AlGaAs staircase avalanche photodiodes accounting for both electron and hole impact ionization
Sign Up to like & getrecommendations! Published in 2020 at "Solid-state Electronics"
DOI: 10.1016/j.sse.2019.107728
Abstract: Abstract A recently developed nonlocal history dependent model for electron and hole impact ionization is used to compute the gain and the excess noise factor in avalanche photodiodes featuring heterojunctions of III-V compound semiconductors while… read more here.
Keywords: impact ionization; hole impact; avalanche; avalanche photodiodes ... See more keywords
Enhancing Performance of a GaAs/AlGaAs/GaAs Nanowire Photodetector Based on the Two-Dimensional Electron-Hole Tube Structure.
Sign Up to like & getrecommendations! Published in 2020 at "Nano letters"
DOI: 10.1021/acs.nanolett.0c00232
Abstract: Here, we design and engineer an axially asymmetric GaAs/AlGaAs/GaAs (G/A/G) nanowire (NW) photodetector that operates efficiently at room temperature. Based on the Ⅰ-type band structure, the device can realize a two-dimensional electron-hole tube (2DEHT) structure… read more here.
Keywords: photodetector; gaas; electron hole; performance ... See more keywords
Two-Dimensional Energy Band Engineering in GaAs/AlGaAs Core–Shell Nanowires by Crystal-Phase Switching for Charge Manipulation
Sign Up to like & getrecommendations! Published in 2019 at "ACS Applied Nano Materials"
DOI: 10.1021/acsanm.9b00692
Abstract: Two-dimensional (2D) band engineering within nanowires is realized by axial switching of crystal-phase from wurtzite to zinc blende and a lateral GaAs/AlGaAs core–shell structure. Band alignment between different phases/materials is investigated through off-axis electron holography… read more here.
Keywords: band engineering; crystal phase; band; gaas algaas ... See more keywords
Coherent backscattering in quasi-ballistic ultra-high mobility GaAs/AlGaAs 2DES
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-28359-0
Abstract: A small and narrow negative-magnetoresistance (MR) effect that appears about null magnetic field over the interval −0.025 ≤ B ≤ 0.025 T in magnetotransport studies of the GaAs/AlGaAs 2D system with μ ≈ 107cm2/Vs is experimentally examined as a function of… read more here.
Keywords: mobility gaas; high mobility; algaas 2des; coherent backscattering ... See more keywords
2D magnetofermionic condensate in GaAs/AlGaAs heterostructures
Sign Up to like & getrecommendations! Published in 2017 at "Low Temperature Physics"
DOI: 10.1063/1.5001293
Abstract: A principally new collective state—magnetofermionic condensate—was found upon excitation of long-lived triplet cyclotron magnetoexcitons in a Hall insulator with high electron mobility and filling factor ν = 2 at low temperatures T < 1 K. The… read more here.
Keywords: algaas heterostructures; condensate gaas; magnetofermionic condensate; condensate ... See more keywords
Transport Studies on GaAs/AlGaAs Two-Dimensional Electron Systems Modulated by Triangular Array of Antidots
Sign Up to like & getrecommendations! Published in 2018 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/35/7/077301
Abstract: Triangular antidot lattices of various periods and aspect ratios are fabricated on high mobility GaAs/AlGaAs two-dimensional electron systems (2DESs), and are characterized by magneto-transport measurements at low temperatures down to 300 mK. Commensurability peaks are… read more here.
Keywords: electron systems; two dimensional; algaas two; dimensional electron ... See more keywords