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The complex magnetic field of the permanent-magnet electron cyclotron resonance (ECR) ion source MEFISTO located at the University of Bern have been numerically simulated. For the first time the magnetized volume qualified for electron…

等离子体物理 · 物理学 2009-11-13 Michael Bodendorfer , Kathrin Altwegg , Herbert Shea , Peter Wurz

One special interest for the industrial development of Hall thruster is characterizing the anomalous cross-field electron transport observed after the channel exit. Since the ionization efficiency is more than 90%, the neutral atom density…

等离子体物理 · 物理学 2019-07-22 Debraj Mandal , Yves Elskens , Nicolas Lemoine , Fabrice Doveil

Using molecular dynamics simulation, we investigate transport properties of a classical two-dimensional electron system confined in a microchannel with a narrow constriction. As a function of the confinement strength of the constriction,…

介观与纳米尺度物理 · 物理学 2012-10-18 Moto Araki , Hisao Hayakawa

We study electron transport through a small metallic island in the perturbative regime. Using a diagrammatic real-time technique, we calculate the occupation of the island as well as the conductance through the transistor at arbitrary…

介观与纳米尺度物理 · 物理学 2009-10-31 Jürgen König , Herbert Schoeller , Gerd Schön

Electron transport in mesoscopic conductors has traditionally involved investigations of the mean current and the fluctuations of the current. A complementary view on charge transport is provided by the distribution of waiting times between…

介观与纳米尺度物理 · 物理学 2012-05-08 Mathias Albert , Géraldine Haack , Christian Flindt , Markus Büttiker

A new version of Monte Carlo generator ELRADGEN for simulation of real photon emission in elastic electron-proton scattering is presented. The extensions in the new version include opportunity to deal with polarized particles:…

高能物理 - 唯象学 · 物理学 2009-12-14 I. Akushevich , A. Ilyichev , N. Shumeiko

We study the electronic transport through a noncollinear single-electron spin-valve transistor. It consists of a small metallic island weakly coupled to two ferromagnetic leads with noncollinear magnetization directions. The electric…

介观与纳米尺度物理 · 物理学 2011-12-13 Stephan Lindebaum , Jürgen König

The recent experimental conductance measurements taken on magnetic impurities on metallic surfaces, using scanning tunneling microscopy technique and suggesting occurrence of inelastic scattering processes, are theoretically addressed. We…

介观与纳米尺度物理 · 物理学 2009-06-20 J. Fransson

Using available quantum Monte Carlo predictions for a strictly 2D electron gas, we have estimated the spin susceptibility of electrons in actual devices taking into account the effect of the finite transverse thickness and finding a very…

强关联电子 · 物理学 2009-11-10 S. De Palo , M. Botti , S. Moroni , Gaetano Senatore

The development of single-electron sources has paved the way for a novel type of experiments in which individual electrons are emitted into a quantum-coherent circuit. In one approach, single-electron excitations are generated by applying…

介观与纳米尺度物理 · 物理学 2019-04-04 Pablo Burset , Janne Kotilahti , Michael Moskalets , Christian Flindt

We study strong electron tunneling in the single-electron box, a small metallic island coupled to an electrode by a tunnel junction, by means of quantum Monte Carlo simulations. We obtain results, at arbitrary tunneling strength, for the…

介观与纳米尺度物理 · 物理学 2009-10-31 Carlos P. Herrero , Gerd Schon , Andrei D. Zaikin

In a startling discovery it has been recently found that certain density of states (DOS) can become negative in mesoscopic systems wherein electrons can travel back in time. We give a brief introduction to the hierarchy of density of states…

介观与纳米尺度物理 · 物理学 2022-04-29 Kanchan Meena , P. Singha Deo

The backscattering of laser radiation by a relativistic electron beam is a widely used method for measuring the spin polarization of electrons. We consider again the properties of the scattering process paying special attention to recoil…

加速器物理 · 物理学 2022-10-19 N. Yu. Muchnoi

Radiative recombination of excitons dressed by the interactions with free charge carriers often occurs under simultaneous excitation of either electrons or holes to unbound states. This phenomenon, known as the electron recoil effect,…

We employ five {\pi}-conjugated model materials of different molecular shape --- oligomers and cyclic structures --- to investigate the extent of exciton self-trapping and torsional motion of the molecular framework following optical…

The electron-cyclotron maser instability is widespread in the Universe, producing, e.g., radio emission of the magnetized planets and cool substellar objects. Diagnosing the parameters of astrophysical radio sources requires comprehensive…

太阳与恒星天体物理 · 物理学 2015-06-04 A. A. Kuznetsov , V. G. Vlasov

This paper presents an analysis of the radiation seen by an observer in circular acceleration, for a magnetic spin. This is applied to an electron in a storage ring, and the subtilty of the interaction of the spin with the spatial motion of…

高能物理 - 理论 · 物理学 2009-10-31 W. G. Unruh

Electrons with spin-orbit coupling moving in mesoscopic structures can often exhibit local spin polarization. In this paper, we study the influence of the Rashba coupling on the scattering of two-dimensional electrons from a circular disk.…

介观与纳米尺度物理 · 物理学 2009-11-13 Jr-Yu Yeh , Chung-Yu Mou , Ming-Che Chang

An electron transport is studied in the system which consists of scanning tunneling microscopy-single molecule magnet-metal. Due to quantum tunneling of magnetization in single-molecule magnet, linear response conductance exhibits stepwise…

介观与纳米尺度物理 · 物理学 2009-11-10 Gwang-Hee Kim , Tae-Suk Kim

Motivated by recent experimental interest in tunneling into heavy electron materials, we present a theory for electron tunneling into a Kondo lattice. The passage of an electron into the Kondo lattice is accompanied by a simultaneous spin…

强关联电子 · 物理学 2009-11-13 Marianna Maltseva , M. Dzero , P. Coleman