Results 111 to 120 of about 790,133 (299)

InAs/GaSb Type-II Superlattice Detectors

Advances in Electronics, 2014
InAs/(In,Ga)Sb type-II strained layer superlattices (T2SLs) have made significant progress since they were first proposed as an infrared (IR) sensing material more than three decades ago. Numerous theoretically predicted advantages that T2SL offers over present-day detection technologies, heterojunction engineering capabilities, and technological ...
openaire   +1 more source

Progress in Strain Engineering of 2D‐Integrated Heterostructures for Ultrasensitive Sensors

Advanced Science, EarlyView.
 . ABSTRACT Two‐dimensional (2D) integrated heterostructures have emerged as a cornerstone in the advancement of next‐generation sensor technologies. These heterostructures, which combine materials with different dimensionalities, have led to significant breakthroughs in sensing performance and device integration.
That Buu Ton, Tuan Sang Tran, Duc Khanh Tran, Van Thanh Dau, Dzung Viet Dao   +4 more
wiley   +1 more source

Characterization of an InAs/GaSb type-II superlattice barrier photodetector operating in the LWIR domain

AIP Advances, 2019
In this paper, structural, optical and electrical characterizations of longwave infrared barrier detectors based on the InAs/GaSb superlattice are reported and analyzed.
R. Alchaar, J. B. Rodriguez, L. Höglund, S. Naureen, P. Christol   +4 more
doaj   +1 more source

Shape resonance for the anisotropic superconducting gaps near a Lifshitz transition: the effect of electron hopping between layers

, 2010
The multigap superconductivity modulated by quantum confinement effects in a superlattice of quantum wells is presented. Our theoretical BCS approach captures the low-energy physics of a shape resonance in the superconducting gaps when the chemical ...
Agrestini S, Alessandro Ricci, Annett J, Antonio Bianconi, Antonio Valletta, Bardsley J N, Bianconi A, Bianconi A, Bianconi A, Bianconi A, Blatt J M, Caivano R, Davide Innocenti, de Shalit A, Ding H, Entel P, Fano U, Fratini M, He C, Ho A F, Hufner S, Kristoffel N, Kristoffel N Rago K, Labbe J, Lebegue S, Lifshitz I M, Lifshitz I M, Maksimov E G, Mazov L S, Muller K A, Nicola Poccia, Ovchinnikov S G, Sergio Caprara, Wang C   +33 more
core   +1 more source

Phase‐Resolved Defect Transport Mechanisms Governing Asynchronous Ordering in a Eutectic High‐Entropy Alloy

Advanced Science, EarlyView.
Phase‐resolved experiments and atomistic simulations reveal asynchronous ordering behaviors in a eutectic high‐entropy alloy during isothermal annealing. Distinct defect transport mechanisms are identified in coexisting B2 and BCC phases, showing that vacancy and interstitial mediated diffusion governs phase‐dependent thermal stability.
Huiwen Yao, Qingshuang Ma, Jie Xiong, Jing Bai, Huijun Li, Qiuzhi Gao   +5 more
wiley   +1 more source

Bias–selectable nBn dual–band long–/very long–wavelength infrared photodetectors based on InAs/InAs1−xSbx/AlAs1−xSbx type–II superlattices

Scientific Reports, 2017
Type–II superlattices (T2SLs) are a class of artificial semiconductors that have demonstrated themselves as a viable candidate to compete with the state–of–the–art mercury–cadmium–telluride material system in the field of infrared detection and imaging ...
Abbas Haddadi, Arash Dehzangi, Romain Chevallier, Sourav Adhikary, Manijeh Razeghi   +4 more
doaj   +1 more source

Weak Topological Insulators in PbTe/SnTe Superlattices

, 2013
It is desirable to realize topological phases in artificial structures by engineering electronic band structures. In this paper, we investigate $(PbTe)_m(SnTe)_{2n-m}$ superlattices along [001] direction and find a robust weak topological insulator phase
Duan, Wenhui, Fu, Liang, Liu, Chaoxing, Liu, Junwei, Yang, Gang   +4 more
core   +2 more sources

Hierarchical Ordering Induced Ultrahigh Cryogenic Strength and Strain Hardening in a Ni2CoFeV Medium‐Entropy Alloy

Advanced Science, EarlyView.
A tri‐phase Ni2CoFeV medium‐entropy alloy with fcc, κ, and L12 phases achieves exceptional cryogenic strength‐ductility synergy at 77 K. It delivers a yield strength of 1.4 GPa, an ultimate tensile strength of 2.07 GPa and a tensile ductility of 28%.
Lei Gu, Wei Jiang, Qingzhong Mao, Xiang Chen, Yonghao Zhao   +4 more
wiley   +1 more source

Ferroelectric HfO2/ZrO2 Superlattice Capacitors With High Center to Edge Wafer‐Scale Uniformity

Advanced Electronic Materials, EarlyView.
“Enhanced wafer‐scale device uniformity on 150 mm wafers is demonstrated using ferroelectric superlattice HfO2/ZrO2 (HZO) capacitors, as compared to conventional solid solution HZO capacitors. Superlattice HZO exhibits improved ferroelectric memory properties, including a broader polarization window, greater endurance, reduced leakage, and superior ...
Oscar Kaatranen, Patrik Eskelinen, Sampo Inkinen, Olli‐Pekka Kilpi, Karl‐Magnus Persson   +4 more
wiley   +1 more source

Plasmons in a Planar Graphene Superlattice

, 2015
Plasmon collective excitations are studied in a planar graphene superlattice formed by periodically alternating regions of gapless graphene and of its gapped modification.
Ratnikov, P. V., Silin, A. P.
core   +1 more source