Results 1 to 10 of about 52,274 (183)

Terahertz superlattice parametric oscillator [PDF]

Physical Review Letters, 2005
We report a GaAs/AlAs superlattice parametric oscillator. It was pumped by a microwave field (power few mW) and produced 3rd harmonic radiation (frequency near 300 GHz).
A. Rogl, A. Zhukov, A. A. Ignatov, B. I. Stahl, D. G. Pavel’ev, D. W. H. Louisell, G. P. Agrawal, H. Kroemer, K. Alekseev, K. F. Renk, L. Esaki, R. W. Boyd, S. A. Ktitorov, S. A. Ktitorov, T. Janzen, V. Ustinov, V. V. Pavlovich, Yu. I. Koshurinov, Yu. A. Romanov   +18 more
core   +4 more sources

Anomalous Hall effect from inter-superlattice scattering in a noncollinear antiferromagnet [PDF]

Nature Communications
Superlattice formation dictates the physical properties of many materials, including the nature of the ground state in magnetic materials. Chemical composition is commonly considered to be the primary determinant of superlattice identity, especially in ...
Lilia S. Xie, Shannon S. Fender, Cameron Mollazadeh, Wuzhang Fang, Matthias D. Frontzek, Samra Husremović, Kejun Li, Isaac M. Craig, Berit H. Goodge, Matthew P. Erodici, Oscar Gonzalez, Jonathan D. Denlinger, Yuan Ping, D. Kwabena Bediako   +13 more
doaj   +2 more sources

Symmetric Excitons in an (001)-Based InAs/GaAs Quantum Dot Near Si Dopant for Photon-Pair Entanglement

Crystals, 2021
The sacrificed-QD-layer method can well control the indium deposition amount to grow InAs quantum dots (QDs) with isotropic geometry. Individual Si dopant above an (001)-based InAs QD proves a new method to build a local electric field to reduce fine ...
Xiangjun Shang, Shulun Li, Hanqing Liu, Ben Ma, Xiangbin Su, Yao Chen, Jiaxin Shen, Huiming Hao, Bing Liu, Xiuming Dou, Yang Ji, Baoquan Sun, Haiqiao Ni, Zhichuan Niu   +13 more
doaj   +1 more source

Wet-Etched Microlens Array for 200 nm Spatial Isolation of Epitaxial Single QDs and 80 nm Broadband Enhancement of Their Quantum Light Extraction

Nanomaterials, 2021
Uniform arrays of three shapes (gauss, hat, and peak) of GaAs microlenses (MLs) by wet-etching are demonstrated, ∼200 nm spatial isolation of epitaxial single QDs embedded (λ: 890–990 nm) and broadband (Δλ∼80 nm) enhancement of their quantum light ...
Shulun Li, Xiangjun Shang, Yao Chen, Xiangbin Su, Huiming Hao, Hanqing Liu, Yu Zhang, Haiqiao Ni, Zhichuan Niu   +8 more
doaj   +1 more source

Anisotropic Strain Relaxation in Semipolar $\left(11\overline{2}2\right)$ InGaN/GaN Superlattice Relaxed Templates

Nanomaterials, 2022
Semipolar (112¯2) InGaN/GaN superlattice templates with different periodical InGaN layer thicknesses were grown on m-plane sapphire substrates using metal-organic chemical vapor deposition (MOCVD).
Wenlong Li, Lianshan Wang, Ruohao Chai, Ling Wen, Zhen Wang, Wangguo Guo, Huanhua Wang, Shaoyan Yang   +7 more
doaj   +1 more source

High-Performance Anodic Vulcanization-Pretreated Gated P+–π–M–N+ InAs/GaSb Superlattice Long-Wavelength Infrared Detector

Nanoscale Research Letters, 2021
The InAs/GaSb superlattice infrared detector has been developed with tremendous effort. However, the performance of it, especially long-wavelength infrared detectors (LWIR), is still limited by the electrical performance and optical quantum efficiency ...
Ju Sun, Nong Li, Qing-Xuan Jia, Xuan Zhang, Dong-Wei Jiang, Guo-Wei Wang, Zhi-Chuan Niu   +6 more
doaj   +1 more source

Reconstitutable Nanoparticle Superlattices* [PDF]

Nano Letters, 2014
Colloidal self-assembly predominantly results in lattices that are either: (1) fixed in the solid state and not amenable to additional modification, or (2) in solution, capable of dynamic adjustment, but difficult to transition to other environments.
Boya, Radha, Andrew J, Senesi, Matthew N, O'Brien, Mary X, Wang, Evelyn, Auyeung, Byeongdu, Lee, Chad A, Mirkin   +6 more
openaire   +2 more sources

Ferromagnetic Resonance of a [GeTe/Sb₂Te₃]₆/Py Superlattice

Magnetochemistry, 2021
A [GeTe/Sb2Te3] superlattice is known as a topological insulator. It shows magnetic responses such as magneto-optical effect, magneto resistance, magneto capacitance, and so on. We have reported that [GeTe/Sb2Te3] superlattice film has a large spin–orbit
Satoshi Sumi, Yuichiro Hirano, Hiroyuki Awano, Junji Tominaga   +3 more
doaj   +1 more source

AC-field Induced Gap Opening in the Vicinity of Extra Dirac Points in Band Structure of Graphene Superlattice [PDF]

Журнал нано- та електронної фізики, 2016
Floquet spectrum of electrons in graphene superlattice subjected to the ac electric field was investigated. The ac-field vector was assumed to oscillate perpendicularly to the superlattice axis.
S.V. Kryuchkov, E.I. Kukhar'
doaj   +1 more source

Boost of single-photon emission by perfect coupling of InAs/GaAs quantum dot and micropillar cavity mode

Nanoscale Research Letters, 2020
We proposed a precise calibration process of Al 0.9 Ga 0.1As/GaAs DBR micropillar cavity to match the single InAs/GaAs quantum dot (QD) exciton emission and achieve cavity mode resonance and a great enhancement of QD photoluminescence (PL) intensity ...
Shulun Li, Yao Chen, Xiangjun Shang, Ying Yu, Jiawei Yang, Junhui Huang, Xiangbin Su, Jiaxin Shen, Baoquan Sun, Haiqiao Ni, Xingliang Su, Kaiyou Wang, Zhichuan Niu   +12 more
doaj   +1 more source