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A physical model of the formation of a vortex current in a plasma channel of lightning discharges due to the anomalous Hall effect caused by relativistic spin-orbit interaction phenomenon is proposed. The existence of fast electromagnetic…

等离子体物理 · 物理学 2024-07-23 N. I. Petrov

Excitons, quasiparticles of electrons and holes bound by Coulombic attraction, are created transiently by light and play an important role in optoelectronics, photovoltaics and photosynthesis. While they are also predicted to form…

We show that driving a two-dimensional electron gas by an in-plane electric field oscillating at the frequency $\omega$ gives rise to an electric current at $2\omega$ flowing near the edge of the system. This current has both parallel and…

介观与纳米尺度物理 · 物理学 2022-10-12 M. V. Durnev , S. A. Tarasenko

It is argued that experiments on rotating superconductors provide evidence for the existence of macroscopic spin currents in superconductors in the absence of applied external fields. Furthermore it is shown that the model of hole…

超导电性 · 物理学 2009-11-10 J. E. Hirsch

The optical emission spectra of semiconducting transition-metal dichalcogenide monolayers highlight fascinating recombination processes of charged excitons (trions). When charge tunable WSe$_2$ monolayers are moderately doped with…

介观与纳米尺度物理 · 物理学 2025-01-22 V. Jindal , K. Mourzidis , A. Balocchi , C. Robert , P. Li , D. Van Tuan , L. Lombez , D. Lagarde , P. Renucci , T. Taniguchi , K. Watanabe , H. Dery , X. Marie

In this letter, we discuss generation of magnetic field from cosmological perturbations. We consider the evolution of three component plasma (electron, proton and photon) evaluating the collision term between elecrons and photons up to the…

天体物理学 · 物理学 2009-11-10 Keitaro Takahashi , Kiyotomo Ichiki , Hiroshi Ohno , Hidekazu Hanayama

Oscillations of dissipative resistance of two-dimensional electrons in GaAs quantum wells are observed in response to an electric current I and a strong magnetic field applied perpendicular to the two-dimensional systems. Period of the…

介观与纳米尺度物理 · 物理学 2015-06-05 Scott Dietrich , Sean Byrnes , Sergey Vitkalov , D. V. Dmitriev , A. A. Bykov

The Coulomb drag phenomenon in a Coulomb-coupled double quantum dot system is revisited with a simple model that highlights the importance of simultaneous tunneling of electrons. Previously, cotunneling effects on the drag current in…

介观与纳米尺度物理 · 物理学 2018-02-16 Jong Soo Lim , Rosa Lopez , David Sanchez

A long laser beam propagating through an underdense plasma produces a positively charged ion channel by expelling plasma electrons in the transverse direction. We consider the dynamics of a test electron in a resulting two-dimensional…

等离子体物理 · 物理学 2015-06-17 Alexey V. Arefiev , Vladimir N. Khudik , Marius Schollmeier

We study the spontaneous emission of charged bosons from supercritical Coulomb potentials and charged black holes. We find the exact emission rate from the Bogoliubov transformation by applying the tunneling boundary condition on the Jost…

高能物理 - 理论 · 物理学 2015-06-18 Sang Pyo Kim

We report on the photoluminescence (PL) properties of MgZnO/ZnO heterojunctions grown by plasma-assisted molecular-beam epitaxy. Influence of the applied magnetic field (B) on the radiative recombination of the two-dimensional electron gas…

材料科学 · 物理学 2015-06-12 T. Makino , Y. Segawa , A. Tsukazaki , H. Saito , S. Takeyama , S. Akasaka , K. Nakahara , M. Kawasaki

Excitons consist of electrons and holes held together by their attractive Coulomb interaction. Although excitons are neutral excitations, spatial fluctuations in their charge density couple with the ions of the crystal lattice. This…

材料科学 · 物理学 2024-01-18 Zhenbang Dai , Chao Lian , Jon Lafuente-Bartolome , Feliciano Giustino

We discuss the role of electron-electron and electron-phonon correlations in current flow in the Coulomb Blockade regime, focusing specifically on nontrivial signatures arising from the break-down of mean-field theory. By solving transport…

介观与纳米尺度物理 · 物理学 2015-05-13 B. Muralidharan , L. Siddiqui , A. W. Ghosh

Electrons and holes in a semiconductor form hydrogen-atom-like bound states, called excitons. At high electron-hole densities the attractive Coulomb force becomes screened and excitons can no longer exist. Bardeen-Cooper-Schrieffer theory…

超导电性 · 物理学 2012-05-16 Marijn A. M. Versteegh , A. J. van Lange , H. T. C. Stoof , Jaap I. Dijkhuis

The possibility of the existence of quasi-stationary electromagnetic fields in plasma supported by their own self-consistent current follows from Maxwell's equations with field sources. These equations also give rise to a wave equation for…

经典物理 · 物理学 2023-01-02 Yurii A. Spirichev

It is experimentally shown that the pressure applied along the twofold symmetry axis of a heterostructure with a wide GaAs/AlGaAs quantum well leads to considerable modification of the polariton reflectance spectra. This effect is treated…

介观与纳米尺度物理 · 物理学 2016-08-24 D. K. Loginov , P. S. Grigoryev , E. V. Ubiyvovk , Yu. P. Efimov , S. A. Eliseev , V. A. Lovtcius , Yu. P. Petrov , I. V. Ignatiev

Theoretical studies of the tunnelling current and emission spectrum of a single electron transistor (SET) under optical pumping are presented. The calculation is performed via Keldysh Green's function method within the Anderson model with…

介观与纳米尺度物理 · 物理学 2009-11-11 David M. -T. Kuo , Yia-Chung Chang

Recent experiment [S.I. Dorozhkin et al., Phys. Rev. Lett. 102, 036602 (2009)] on quantum Hall structures with strongly asymmetric contact configuration discovered microwave-induced photocurrent and photovoltage magnetooscillations in the…

介观与纳米尺度物理 · 物理学 2009-09-28 I. A. Dmitriev , S. I. Dorozhkin , A. D. Mirlin

Magnetic holes are plasma structures that trap a large number of particles in a magnetic field that is weaker than the field in its surroundings. The unprecedented high time-resolution observations by NASA's Magnetospheric Multi-Scale (MMS)…

等离子体物理 · 物理学 2022-08-25 Wence Jiang , Daniel Verscharen , Hui Li , Chi Wang , Kristopher G. Klein

We theoretically study the tunnelling current of a single electron transistor (SET) under optical pumping. It found that holes in the quantum dot(QD) created by optical pumping lead to new channels for the electrons tunnelling from emitter…

介观与纳米尺度物理 · 物理学 2007-05-23 David M T Kuo , Yia-chun chang
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