Results 31 to 40 of about 109,910 (319)
Avalanche Photodetector Based on InAs/InSb Superlattice
Quantum Reports, 2020 This work demonstrates a mid-wavelength infrared InAs/InSb superlattice avalanche photodiode (APD). The superlattice APD structure was grown by molecular beam epitaxy on GaSb substrate.
Arash Dehzangi +3 more
doaj +1 more source
Roadmap on chalcogenide photonics
JPhys Photonics, 2023 Alloys of sulfur, selenium and tellurium, often referred to as chalcogenide semiconductors, offer a highly versatile, compositionally-controllable material platform for a variety of passive and active photonic applications.
Behrad Gholipour +25 more
doaj +1 more source
Nanoscale Research Letters, 2018 In this study, the low-energy radiation responses of Si, Ge, and Si/Ge superlattice are investigated by an ab initio molecular dynamics method and the origins of their different radiation behaviors are explored.
Ming Jiang +6 more
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Nematicity with a twist: Rotational symmetry breaking in a moiré superlattice [PDF]
Science Advances, 2019 Twisted 2D materials realize a unique electronic nematic state, quite different from its counterpart in bulk quantum materials. Motivated by recent reports of nematic order in twisted bilayer graphene (TBG), we investigate the impact of the triangular ...
R. Fernandes, J. Venderbos
semanticscholar +1 more source
Magnetoplasmons in layered graphene structures [PDF]
, 2008 We calculate the dispersion equations for magnetoplasmons in a single layer, a pair of parallel layers, a graphite bilayer and a superlattice of graphene layers in a perpendicular magnetic field.
D. Pines +3 more
core +1 more source
Confinement of electrons in size modulated silicon nanowires [PDF]
, 2009 Based on first-principles calculations we showed that superlattices of periodically repeated junctions of hydrogen saturated silicon nanowire segments having different lengths and diameters form multiple quantum well structures.
Cahangirov, Seymur, Ciraci, Salim
core +2 more sources
Quasicrystalline 30° twisted bilayer graphene as an incommensurate superlattice with strong interlayer coupling [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2018 Significance Interlayer interaction in van der Waals heterostructures could induce many exotic phenomena. Unlike commensurate heterostructures, incommensurate ones have often been neglected, due to the rarity in nature and the assumption of suppressed ...
Wei Yao +11 more
semanticscholar +1 more source
Superior Electrocatalytic Activity of MoS2-Graphene as Superlattice
Nanomaterials, 2020 Evidence by selected area diffraction patterns shows the successful preparation of large area (cm × cm) MoS2/graphene heterojunctions in coincidence of the MoS2 and graphene hexagons (superlattice).
Alejandra Rendón-Patiño +3 more
doaj +1 more source
Investigation of switching region in superlattice phase change memories
AIP Advances, 2016 We investigated superlattice phase change memories (PCMs) to clarify which regions were responsible for switching. We observed atomic structures in a superlattice PCM film with a stack of GeTe / Sb2Te3 layers using atomically resolved EDX maps, and we ...
T. Ohyanagi, N. Takaura
doaj +1 more source
Photonics, 2023 We investigate how an external magnetic field with an arbitrary direction affects the photonic band of a superlattice structure composed of alternating dielectric and magneto-optical plasma layers.
Denis Iakushev, Servando Lopez-Aguayo
doaj +1 more source