Results 21 to 30 of about 14,530 (266)

Tunneling anisotropic magnetoresistance of helimagnet tunnel junctions [PDF]

open access: yesPhysical Review B, 2010
We theoretically investigate the angular and spin dependent transport in normal-metal/helical-multiferroic/ferromagnetic heterojunctions. We find a tunneling anisotropic magnetoresistance (TAMR) effect due to the spiral magnetic order in the tunnel junction and to an effective spin-orbit coupling induced by the topology of the localized magnetic ...
Jia, Chenglong, Berakdar, Jamal
openaire   +2 more sources

Probing defect densities at the edges and inside Josephson junctions of superconducting qubits

open access: yesnpj Quantum Information, 2022
Tunneling defects in disordered materials form spurious two-level systems which are a major source of decoherence for micro-fabricated quantum devices.
Alexander Bilmes   +3 more
doaj   +1 more source

Shaking table test on the seismic response of the portal section in soft and hard rock junction

open access: yesScience Progress, 2021
Tunnel portal sections located in the soft-hard rock junction are vulnerable to the strong earthquake motions in seismically active regions. The main objective of this paper is to investigate the seismic response of tunnel portals located in the soft ...
Guangyao Cui, Jianfei Ma
doaj   +1 more source

Investigation of the Carrier Movement through the Tunneling Junction in the InGaP/GaAs Dual Junction Solar Cell Using the Electrically and Optically Biased Photoreflectance Spectroscopy

open access: yesEnergies, 2021
For examining the carrier movements through tunnel junction, electrically and optically-biased photoreflectance spectroscopy (EBPR and OBPR) were used to investigate the internal electric field in the InGaP/GaAs dual junction solar cell at room ...
Sanam SaeidNahaei   +5 more
doaj   +1 more source

Evaluation of the relationship between the collapsed mechanism and excavation method in tunnels excavated in schists

open access: yesScientific Reports, 2022
The problems experienced in tunnels excavated under high cover in graphitic schists generally vary according to the squeezing mechanism. During the tunnel excavation, slips occur on the slickenside surfaces in the tunnel face from time to time and ...
Ebu Bekir Aygar
doaj   +1 more source

Molecular Series-Tunneling Junctions [PDF]

open access: yesJournal of the American Chemical Society, 2015
Charge transport through junctions consisting of insulating molecular units is a quantum phenomenon that cannot be described adequately by classical circuit laws. This paper explores tunneling current densities in self-assembled monolayer (SAM)-based junctions with the structure Ag(TS)/O2C-R1-R2-H//Ga2O3/EGaIn, where Ag(TS) is template-stripped silver ...
Liao, Kung-ching   +4 more
openaire   +4 more sources

Tunnel junction simulation of all-perovskite tandem solar cells [PDF]

open access: yesFrontiers of Optoelectronics
All-perovskite tandem solar cells are a promising photovoltaic technology, but their efficiency is strongly limited by the tunnel junction. The tunnel junction enables carrier tunneling and recombination, which depend on the interfacial band alignment ...
Xuke Yang, Jiang Tang, Chao Chen
doaj   +1 more source

In-Plane Ferroelectric Tunnel Junction [PDF]

open access: yesPhysical Review Applied, 2019
The ferroelectric material is an important platform to realize non-volatile memories. So far, existing ferroelectric memory devices utilize out-of-plane polarization in ferroelectric thin films. In this paper, we propose a new type of random-access memory (RAM) based on ferroelectric thin films with the in-plane polarization called "in-plane ...
Shen, Huitao   +3 more
openaire   +4 more sources

Tunnel Junctions for III-V Multijunction Solar Cells Review

open access: yesCrystals, 2018
Tunnel Junctions, as addressed in this review, are conductive, optically transparent semiconductor layers used to join different semiconductor materials in order to increase overall device efficiency.
Peter Colter   +2 more
doaj   +1 more source

Passivating contact-based tunnel junction Si solar cells using machine learning for tandem cell applications

open access: yesEnergy and AI, 2023
Tandem solar cells are a key technology for exceeding the theoretical efficiency limit of single-junction cells. One of the most promising combinations is the silicon–perovskite tandem cells, considering their potential for high efficiency, fabrication ...
HyunJung Park   +6 more
doaj   +1 more source

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