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Organic semiconductors have generated considerable interest for their potential for creating inexpensive and flexible devices easily processed on a large scale [1-11]. However technological applications are currently limited by the low…

While space-charge-limited current measurements are often used to characterize charge-transport in relatively intrinsic, low-mobility semiconductors, it is currently difficult to characterize lightly or heavily doped semiconductors with…

应用物理 · 物理学 2020-12-02 Jason A. Röhr , Roderick C. I. MacKenzie

We study spin-polarized quasiparticle transport in a mesoscopic superconductor with a spin- splitting field in the presence of co-flowing supercurrent. In such a system, the nonequilibrium state is characterized by charge, spin, energy and…

超导电性 · 物理学 2018-08-01 Faluke Aikebaier , Mihail A. Silaev , T. T. Heikkilä

It has been empirically observed in both experiments and particle-in-cell simulations that space-charge-dominated beams suffer strong growth in statistical phase-space area (degraded quality) and particle losses in alternating gradient…

加速器物理 · 物理学 2009-11-11 Steven M. Lund , Sugreev R. Chawla

A charged space is a space equipped with two distinct base points. Such spaces arise as the unreduced suspension of an unbased space. More generally, one can work in the fiberwise setting over a fixed space B. A fiberwise charged space over…

代数拓扑 · 数学 2013-06-11 John R. Klein , John W. Peter

This work reports on the experimental investigation of the wide band gap compounds LiMgZ (Z = P, As, Sb), which are promising candidates for opto-electronics and anode materials for Lithium batteries. The compounds crystallize in the cubic…

This paper is devoted to investigate the pattern formation of a volume-filling chemotaxis model with logistic cell growth. We first apply the local stability analysis to establish sufficient conditions of destabilization for uniform…

偏微分方程分析 · 数学 2016-11-22 Yazhou Han , Zhongfang Li , Jicheng Tao , Manjun Ma

A semiclassical model of charge transport in a semiconductor superlattice is solved, using moments in the wavenumber direction and finite elements in the spatial direction (first order). The selection of numerical methods guarantees the…

介观与纳米尺度物理 · 物理学 2012-07-27 Yossi Farjoun , Luis L. Bonilla

We consider adiabatic charge transport through mesoscopic metallic samples caused by a periodically changing external potential. We find that both the amplitude and the sign of the charge transferred through a sample per period are random…

介观与纳米尺度物理 · 物理学 2009-10-31 F. Zhou , B. Spivak , B. Altshuler

We study the localization properties of a test dipole feeling the disordered potential induced by dipolar impurities trapped at random positions in an optical lattice. This random potential is marked by correlations which are a convolution…

量子气体 · 物理学 2013-09-20 M. Larcher , C. Menotti , B. Tanatar , P. Vignolo

We present a novel approach to achieve adaptable band structures and non-reciprocal wave propagation by exploring and exploiting the concept of metastable modular metastructures. Through studying the dynamics of wave propagation in a chain…

应用物理 · 物理学 2018-02-14 Z. Wu , Y. Zheng , K. W. Wang

We consider a problem of superconductivity coexistence with the spin-density-wave order in disordered multiband metals. It is assumed that random variations of the disorder potential on short length scales render the interactions between…

超导电性 · 物理学 2021-07-28 Maxim Dzero , Alex Levchenko

Space charge forces, which arise directly from the beam's charge distribution and include the influence of image charges and currents induced by interactions with a perfectly conducting, smooth pipe, are very important in high-intensity,…

加速器物理 · 物理学 2025-05-21 Massimo Ferrario , Mauro Migliorati , Luigi Palumbo

We study the local states within the polariton bandgap that arise due to deep defect centers with strong electron-phonon coupling. Electron transitions involving deep levels may result in alteration of local elastic constants. In this case,…

无序系统与神经网络 · 物理学 2009-11-07 M. Foygel , Alexey Yamilov , Lev I. Deych , A. A. Lisyansky

Transport through molecular contacts with a sluggish intramolecular vibrational mode strongly coupled to excess charges is studied far from equilibrium. A Born-Oppenheimer approximation in steady state reveals voltage dependent energy…

介观与纳米尺度物理 · 物理学 2012-06-27 Lars Kecke , Joachim Ankerhold

Starting from First Principles, the space charge manipulation of charged particles in an induction field in free space based on an unique Magnetic field strength and its oscillation Frequency relationship is demonstrated numerically and…

等离子体物理 · 物理学 2024-07-10 Devesh S. Bhosale

A three-terminal spectroscopy that probes both subsurface energy barriers and interband optical transitions in a semiconductor heterostructure is demonstrated. A metal-base transistor with a unipolar p-type semiconductor collector embedding…

材料科学 · 物理学 2015-04-09 Wei Yi , Venkatesh Narayanamurti , Joshua M. O. Zide , Seth R. Bank , Arthur C. Gossard

By comparing photoemission spectroscopy with a non-perturbative dynamical mean field theory extension to many-body ab initio calculations, we show in the prominent case of pentacene crystals that an excellent agreement with experiment for…

材料科学 · 物理学 2012-11-28 S. Ciuchi , R. C. Hatch , H. Höchst , C. Faber , X. Blase , S. Fratini

We consider space-charge dominated beam transport systems, where space-charge forces are the same order as external focusing forces and dynamics of the corresponding emittance growth. We consider the coherent modes of oscillations and…

加速器物理 · 物理学 2007-05-23 Antonina N. Fedorova , Michael G. Zeitlin

Context. The understanding of fossil fields origin, topology and stability is one of the corner stones of the stellar magnetism theory. On one hand, since they survive over secular time-scales, they may modify the structure and the…

太阳与恒星天体物理 · 物理学 2010-03-16 V. Duez , S. Mathis