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We show that electron transport in a ballistic microchannel supporting both propagating and reflected modes can be completely blocked by applying a microwave electromagnetic field. The effect is due to resonant reflection caused by multiple…

凝聚态物理 · 物理学 2009-10-28 L. Y. Gorelik , M. Jonson , R. I. Shekhter

We study transport properties of a two-dimensional electron gas, placed in a classically strong perpendicular magnetic field and in constant and oscillating in-plane electric fields. The analysis is based on a quantum Boltzmann equation…

介观与纳米尺度物理 · 物理学 2009-01-09 M. Khodas , M. G. Vavilov

We show that transport through a superconducting quantum point contact biased at subgap voltages is strongly affected by a microwave field. The subgap current is increased by several orders of magnitude. Quantum interference among resonant…

超导电性 · 物理学 2007-05-23 N. I. Lundin , L. Y. Gorelik , R. I. Shekhter , V. S. Shumeiko , M. Jonson

The influence of electron-phonon interaction on magnetotransport in two-dimensional electron systems under microwave irradiation is studied theoretically. Apart from the phonon-induced resistance oscillations which exist in the absence of…

介观与纳米尺度物理 · 物理学 2015-05-18 O. E. Raichev

We study magnetoresistivity oscillations in a high-mobility two-dimensional electron system subject to both microwave and dc electric fields. First, we observe that the oscillation amplitude is a periodic function of the inverse magnetic…

介观与纳米尺度物理 · 物理学 2009-11-13 A. T. Hatke , H. -S. Chiang , M. A. Zudov , L. N. Pfeiffer , K. W. West

We analyze the impact of multichannel scattering in harmonic waveguides on the positions and widths of confinement-induced resonances for both isotropic and anisotropic transversal confinement. Multichannel scattering amplitudes and…

量子物理 · 物理学 2011-10-21 Vladimir S. Melezhik , Peter Schmelcher

In this work we present a theoretical approach to study the effect of an in-plane (parallel) magnetic field on the microwave-assisted transport properties of a two-dimensional electron system. Previous experimental evidences show that…

介观与纳米尺度物理 · 物理学 2012-11-22 Jesus Inarrea , Gloria Platero

Interfering electrons in a mesoscopic ring are irradiated with both classical and nonclassical microwaves. The average intensity of the charges is calculated as a function of time and it is found that it depends on the nature of the…

介观与纳米尺度物理 · 物理学 2017-08-23 D. I. Tsomokos , C. C. Chong , A. Vourdas

We observe microwave induced nonlocal resistance in magnetotransport in single and bilayer electronic systems. The obtained results provide evidence for an edge state current stabilized by microwave irradiation due to nonlinear resonances.…

介观与纳米尺度物理 · 物理学 2014-04-23 A. D. Levin , Z. S. Momtaz , G. M. Gusev , A. K. Bakarov

In a two-dimensional electron system, microwave radiation may induce giant resistance oscillations. Their origin has been debated controversially and numerous mechanisms based on very different physical phenomena have been invoked. However…

介观与纳米尺度物理 · 物理学 2016-10-20 S. I. Dorozhkin , A. A. Kapustin , V. Umansky , K. von Klitzing , J. H. Smet

We report on experimental evidence of directed electron transport, induced by external linear-polarized microwave irradiation, in a two-dimensional spatially-periodic asymmetrical system called ratchet. The broken spatial symmetry was…

介观与纳米尺度物理 · 物理学 2009-11-13 S. Sassine , Yu. Krupko , J. -C. Portal , Z. D. Kvon , R. Murali , K. P. Martin , G. Hill , A. D. Wieck

The infuence of the conduction-electron spin magnetization density, induced in a two-dimensional electron layer by a microwave electromagnetic field, on the rejection and transmission of the field is considered. Because of the induced…

介观与纳米尺度物理 · 物理学 2016-06-29 Victor M. Edelstein

Electrical conduction is studied along parabolically confined quasi-one dimensional channels, in the framework of a revised linear-response theory, for elastic scattering. For zero magnetic field an explicit multichannel expression for the…

介观与纳米尺度物理 · 物理学 2009-11-07 S. Guillon , P. Vasilopoulos , C. M. Van Vliet

We discuss possible origins of recently discovered microwave induced photoresistance oscillations in very-high-electron-mobility two-dimensional electron systems. We show that electrodynamic effects -- the radiative decay, plasma…

介观与纳米尺度物理 · 物理学 2009-11-10 S. A. Mikhailov

We obtain exact analytical expressions for the electronic transport through a multi-channel system, also with an applied magnetic field. The geometrical structure of the electrodes is found to cause a splitting of the conduction band into…

介观与纳米尺度物理 · 物理学 2008-02-03 Yan Chen , Shi-Jie Xiong , S. N. Evangelou

We observe a new type of magneto-oscillations in the photovoltage and the longitudinal resistance of a two-dimensional electron system. The oscillations are induced by microwave irradiation and are periodic in magnetic field. The period is…

介观与纳米尺度物理 · 物理学 2009-11-10 I. V. Kukushkin , M. Yu. Akimov , J. H. Smet , S. A. Mikhailov , K. von Klitzing , I. L. Aleiner , V. I. Falko

While controlling particle diffusion in a confined geometry is a popular approach taken by both natural and artificial systems, it has not been widely adopted for controlling light transport in random media, where wave interference effects…

光学 · 物理学 2016-01-06 Raktim Sarma , Alexey Yamilov , Seng Fatt Liew , Mikhael Guy , Hui Cao

We analyzed the magnetoresistivity of a two-dimensional electron system excited by microwave radiation in a regime of high intensities and low frequencies. In such a regime, recent experiments show that different features appear in the…

介观与纳米尺度物理 · 物理学 2009-11-13 Jesus Inarrea

We consider the influence of a resonant control field on weak localization of light in ultracold atomic ensembles. Both steady-state and pulsed light excitation are considered. We show that the presence of a control field essentially…

量子物理 · 物理学 2015-05-27 I. M. Sokolov , D. V. Kupriyanov , M. D. Havey

To study the influence of microwave irradiation on two-dimensional electrons, we apply a method based on capacitance measurements in GaAs quantum well samples where the gate covers a central part of the layer. We find that the capacitance…

介观与纳米尺度物理 · 物理学 2016-08-17 A. D. Levin , G. M. Gusev , O. E. Raichev , Z. S. Momtaz , A. K. Bakarov
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