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Electron transport in a new low-dimensional structure - the nuclear spin polarization induced quantum wire (NSPI QW) is theoretically studied. In the proposed system the local nuclear spin polarization creates the effective hyperfine field…

介观与纳米尺度物理 · 物理学 2009-11-07 Yu. V. Pershin , S. N. Shevchenko , I. D. Vagner , P. Wyder

Electronic transport through a quantum wire sandwiched between two metallic electrodes and coupled to a quantum ring, threaded by a magnetic flux $\phi$, is studied. An analytic approach for the electron transport through the bridge system…

介观与纳米尺度物理 · 物理学 2009-11-06 Santanu K. Maiti

Ballistic quantum wires are exposed to longitudinal profiles of perpendicular magnetic fields composed of a spike (magnetic barrier) and a homogeneous part. An asymmetric magnetoconductance peak as a function of the homogeneous magnetic…

介观与纳米尺度物理 · 物理学 2015-05-13 A. Tarasov , S. Hugger , Hengyi Xu , M. Cerchez , T. Heinzel , I. V. Zozoulenko , U. Gasser-Szerer , D. Reuter , A. D. Wieck

We study how a charged particle moving in a uniform magnetic field along its standard circular path (cyclotron motion) reacts to a short-duration, homogeneous, uniform electric field pulse injected in the plane perpendicular to the magnetic…

经典物理 · 物理学 2025-02-27 Sayan Kar

This article reviews the fundamental issues associated with the magnetoplasmon excitations investigated in a semiconducting quantum wire characterized by a harmonic confining potential and subjected to an applied (perpendicular) magnetic…

介观与纳米尺度物理 · 物理学 2016-04-20 Manvir S. Kushwaha

An existence of predominant symmetrical spin configuration (spin polarised phase) and "diluted" density of states (pseudo-gap) in a layer under the Fermi level in a quantum wire is predicted. The condition of cross-over from non-polarised…

强关联电子 · 物理学 2009-10-31 V. V'yurkov , A. Vetrov

We describe the transport properties of a 5 $\mu$m long one-dimensional (1D) quantum wire. Reduction of conductance plateaux due to the introduction of weakly disorder scattering are observed. In an in-plane magnetic field, we observe…

强关联电子 · 物理学 2009-10-31 C. -T. Liang , M. Pepper , M. Y. Simmons , C. G. Smith , D. A. Ritchie

We propose a new particle acceleration mechanism. Electron can be accelerated to relativistic energy within a few electromagnetic wave cycles through the mechanism which is named electromagnetic and magnetic field resonance acceleration…

等离子体物理 · 物理学 2007-05-23 Hong Liu , X. T. He , S. G. Chen , W. Y. Zhang

The stationary current induced by a strong running potential wave in one-dimensional system is studied. Such a wave can result from illumination of a straight quantum wire with special grating or spiral quantum wire by circular-polarized…

介观与纳米尺度物理 · 物理学 2015-05-14 M. V. Entin , L. I. Magarill

A theoretical investigation has been made of the magnetoplasmon excitations in a quantum wire characterized by a confining harmonic potential and subjected to a perpendicular magnetic field. We study the (nonlocal, dynamic) inverse…

介观与纳米尺度物理 · 物理学 2015-06-16 Manvir S. Kushwaha

We study the unidirectional transport of two-particle quantum wavepackets in a regular one-dimensional lattice. We show that the bound-pair state component behaves differently from unbound states when subjected to an external pulsed…

量子物理 · 物理学 2017-08-22 A. R. C. Buarque , W. S. Dias

Dielectric laser acceleration is a versatile scheme to accelerate and control electrons with the help of femtosecond laser pulses in nanophotonic structures. We demonstrate here the generation of a train of electron pulses with individual…

We show that quantum dots and quantum wires are formed underneath metal electrodes deposited on a planar semiconductor heterostructure containing a quantum well. The confinement is due to the self-focusing mechanism of an electron wave…

介观与纳米尺度物理 · 物理学 2009-11-13 S. Bednarek , B. Szafran , R. Dudek , K. Lis

A nanodevice consisting of a conductive cylinder in an axial magnetic field with one-dimensional wires attached to its lateral surface is considered. An explicit form for transmission and reflection coefficients of the system as a function…

介观与纳米尺度物理 · 物理学 2007-05-23 V. A. Margulis , M. A. Pyataev

Exact closed-form solutions to Maxwell's equations are used to investigate the acceleration of electrons in vacuum driven by ultrashort and nonparaxial radially polarized laser pulses. We show that the threshold power above which…

加速器物理 · 物理学 2012-11-20 Vincent Marceau , Alexandre April , Michel Piché

A microscopic picture of electron-electron pair scattering in single mode quantum wires is introduced which includes electron spin. A new source of `excess' noise for hot carriers is presented. We show that zero magnetic field `spin'…

凝聚态物理 · 物理学 2009-10-22 Gerhard Fasol , Hiroyuki Sakaki

The influence of an electron-vibrational coupling on the laser control of electron transport through a molecular wire that is attached to several electronic leads is investigated. These molecular vibrational modes induce an effective…

介观与纳米尺度物理 · 物理学 2007-05-23 Jörg Lehmann , Sigmund Kohler , Volkhard May , Peter Hänggi

We theoretically investigate electrical transport in a quantum Hall system hosting bulk and edge current carrying states. Spatially varying magnetic and electric confinement creates pairs of current carrying lines that drift in the same or…

介观与纳米尺度物理 · 物理学 2018-09-12 Puja Mondal , Alain Nogaret , Sankalpa Ghosh

We present a theoretical investigation of the excitation of multiple electrostatic wakefields by the ponderomotive force of a short electromagnetic pulse propagating through a dense plasma. It is found that the inclusion of the quantum…

等离子体物理 · 物理学 2015-05-13 P. K. Shukla , G. Brodin , M. Marklund , L. Stenflo

We investigate the non-linear interaction of a strong Gravitational Wave with the plasma during the collapse of a massive magnetized star to form a black hole, or during the merging of neutron star binaries (central engine). We found that…

天体物理学 · 物理学 2009-11-10 Loukas Vlahos , George Voyatzis , Demetrios Papadopoulos