2D Einstein Relation in Quantum Wells Under Strong Electric Field

The RKKY interaction between two magnetic impurities in a GaAs/AlAs double quantum well under a strong electric field perpendicular to the interfaces is obtained as a function of the field strength and the barrier width. We obtain a fast decrease of the exchange with the barrier width for the impurities lying in different wells. At intermediate strengths and small barrier widths, a structure is observed in the inter-well exchange.

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Non-Polar ZnO Thin Films and LED Devices

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1053.373 ◽

2014 ◽

Vol 1053 ◽

pp. 373-380 ◽

Cited By ~ 1

Author(s):

Long Li ◽

Yong Zheng Fang ◽

Jun Zou ◽

Yue Feng Li

Keyword(s):

Thin Films ◽

Magnetic Properties ◽

Optical Properties ◽

Electrical Properties ◽

Electric Field ◽

Quantum Wells ◽

Strong Electric Field ◽

Zno Thin Films ◽

Third Generation ◽

Optical Performance

ZnO materials have being researched in recent 30 years as a hot topic. ZnO is a third generation of semiconductor, it can be prepared into various forms of films and nanostructures, and they have excellent optical properties, electrical properties and magnetic properties. Because the polar ZnO’s quantum wells have a strong electric field, this will have a great impact on its optical properties. But non-polar ZnO has reduced such a strong electric field, so it greatly improved the luminescent performance. It’s more excellent than polar ZnO in the optical performance. In recent years, non-polar ZnO thin films’ research became increasingly evident. This article summed up the performances, preparations and applications of non-polar ZnO, and there are some suggestions. All of these are good to the further study of non-polar ZnO.

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Design and numerical analysis of extreme sensitivity refractive index sensor based on cavity resonance mode with strong electric field

IEEE Sensors Journal ◽

10.1109/jsen.2021.3062141 ◽

2021 ◽

pp. 1-1

Author(s):

Ruoqin Yan ◽

Tao Wang ◽

Xiaoyun Jiang ◽

Lu Wang

Keyword(s):

Refractive Index ◽

Numerical Analysis ◽

Electric Field ◽

Strong Electric Field ◽

Resonance Mode ◽

Cavity Resonance ◽

Refractive Index Sensor ◽

Extreme Sensitivity ◽

Cavity Resonance Mode

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Molecular dynamics simulation study of the effect of a strong electric field on the structure of a poly(oxyethylene) chain in explicit solvents

Journal of Molecular Liquids ◽

10.1016/j.molliq.2021.116622 ◽

2021 ◽

pp. 116622

Author(s):

Šárka Dědičová ◽

Jan Dočkal ◽

Filip Moučka ◽

Jan Jirsák

Keyword(s):

Molecular Dynamics ◽

Molecular Dynamics Simulation ◽

Electric Field ◽

Simulation Study ◽

Strong Electric Field ◽

Dynamics Simulation

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Axion assisted Schwinger effect

Journal of High Energy Physics ◽

10.1007/jhep05(2021)001 ◽

2021 ◽

Vol 2021 (5) ◽

Author(s):

Valerie Domcke ◽

Yohei Ema ◽

Kyohei Mukaida

Keyword(s):

Electric Field ◽

Production Rate ◽

Strong Electric Field ◽

Background Field ◽

Chiral Anomaly ◽

Fermion Mass ◽

Anomaly Equation ◽

Electric And Magnetic Fields ◽

Schwinger Effect ◽

Momentum Transverse

Abstract We point out an enhancement of the pair production rate of charged fermions in a strong electric field in the presence of time dependent classical axion-like background field, which we call axion assisted Schwinger effect. While the standard Schwinger production rate is proportional to $$ \exp \left(-\pi \left({m}^2+{p}_T^2\right)/E\right) $$ exp − π m 2 + p T 2 / E , with m and pT denoting the fermion mass and its momentum transverse to the electric field E, the axion assisted Schwinger effect can be enhanced at large momenta to exp(−πm2/E). The origin of this enhancement is a coupling between the fermion spin and its momentum, induced by the axion velocity. As a non-trivial validation of our result, we show its invariance under field redefinitions associated with a chiral rotation and successfully reproduce the chiral anomaly equation in the presence of helical electric and magnetic fields. We comment on implications of this result for axion cosmology, focussing on axion inflation and axion dark matter detection.

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