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相关论文: Quantum Rings with Rashba spin orbit coupling: a p…

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We investigate the effect of strong spin-orbit interaction on the electronic transport through non-magnetic impurities in one-dimensional systems. When a perpendicular magnetic field is applied, the electron spin polarization becomes…

材料科学 · 物理学 2007-05-23 R. G. Pereira , E. Miranda

We present a theory of conducting quantum networks that accounts for Abelian and non-Abelian fields acting on spin carriers. We apply this approach to model the conductance of mesoscopic spin interferometers of different geometry (such as…

介观与纳米尺度物理 · 物理学 2021-04-28 A. Hijano , T. van den Berg , D. Frustaglia , D. Bercioux

We study the influence of spin polarization on the degree of coherence of electron transport through interacting quantum dots. To this end, we identify transport regimes in which the degree of coherence can be related to the visibility of…

介观与纳米尺度物理 · 物理学 2010-11-04 Bastian Hiltscher , Michele Governale , Jürgen König

We address the subject of transport in one-dimensional ballistic polygon loops subject to Rashba spin-orbit coupling. We identify the role played by the polygon vertices in the accumulation of spin-related phases by studying interference…

介观与纳米尺度物理 · 物理学 2009-11-11 Dario Bercioux , Diego Frustaglia , Michele Governale

We present numerical calculations of the ballistic spin-transport properties of quasi-one-dimensional wires in the presence of the spin-orbit (Rashba) interaction. A tight-binding analog of the Rashba Hamiltonian which models the Rashba…

介观与纳米尺度物理 · 物理学 2009-11-07 Francisco Mireles , George Kirczenow

Because of the peculiar coupling of spatial and spin degrees of freedom effected by the Rashba spin-orbit interaction, lateral confinement of a two dimensional electronic system leads to a finite transverse spin polarization near the…

介观与纳米尺度物理 · 物理学 2007-05-23 S. Chesi , G. F. Giuliani

After obtaining an exact analytical time-varying solution for the Aharonov-Casher conducting ring embedded in a textured static/dynamic electric field, we investigate the spin-resolved quantum transport in the structure. It is shown that…

介观与纳米尺度物理 · 物理学 2018-09-10 Can Li , Yaojin Li , Dongxing Yu , Chenglong Jia

We present analytical and numerical results for the effect of Rashba spin-orbit coupling on band structure, transport, and interaction effects in quantum wires when the spin precession length is comparable to the wire width. In contrast to…

介观与纳米尺度物理 · 物理学 2009-11-07 M. Governale , U. Zuelicke

We consider quasiballistic electron transmission in a one-dimensional quantum wire subject to both time-independent and periodic potentials of a finger gate that results in a coordinate- and time-dependent Rashba-type spin-orbit coupling. A…

介观与纳米尺度物理 · 物理学 2013-10-11 Almas F. Sadreev , E. Ya. Sherman

Since the recent experimental realization of synthetic Rashba spin-orbit coupling paved a new avenue for exploring and engineering topological phases in ultracold atoms, a precise, solid detection of Berry phase has been desired for…

量子气体 · 物理学 2018-08-29 Junpeng Hou , Xi-Wang Luo , Kuei Sun , Chuanwei Zhang

We investigate the effect of strong interactions on the spectral properties of quantum wires with strong Rashba spin-orbit interaction in a magnetic field, using a combination of Matrix Product State and bosonization techniques. Quantum…

强关联电子 · 物理学 2017-06-07 Georg W. Winkler , Martin Ganahl , Dirk Schuricht , Hans Gerd Evertz , Sabine Andergassen

We study the coherent transport of heavy holes through a one-dimensional ring in the presence of spin-orbit coupling. Spin-orbit interaction of holes, cubic in the in-plane components of momentum, gives rise to an angular momentum dependent…

介观与纳米尺度物理 · 物理学 2016-01-20 Dimitrije Stepanenko , Minchul Lee , Guido Burkard , Daniel Loss

We identify theoretically the geometric phases of the electrons' spin that can be detected in measurements of charge and spin transport through Aharonov-Bohm interferometers threaded by a magnetic flux $\Phi$ (in units of the flux quantum)…

介观与纳米尺度物理 · 物理学 2019-11-27 O. Entin-Wohlman , A. Aharony

We developed the theory of electronic properties of semiconductor quantum rings with the Rashba spin-orbit interaction irradiated by an off-resonant high-frequency electromagnetic field (dressing field). Within the Floquet theory of…

介观与纳米尺度物理 · 物理学 2018-04-30 V. K. Kozin , I. V. Iorsh , O. V. Kibis , I. A. Shelykh

We study the spin-charge coupled transport in a two-dimensional electron system using the method of quasiclassical ($\xi$-integrated) Green's functions. In particular we derive the Eilenberger equation in the presence of a generic…

介观与纳米尺度物理 · 物理学 2007-05-23 Roberto Raimondi , Cosimo Gorini , Peter Schwab , Michael Dzierzawa

We consider a single electron confined within a quantum wire in a system of two electrostatically-induced QDs defined by nearby gates. The time-varying electric field, of single GHz frequency, perpendicular to the quantum wire, is used to…

介观与纳米尺度物理 · 物理学 2021-07-19 J. Pawłowski , G. Skowron , P. Szumniak , S. Bednarek

Far infrared radiation absorption of a quantum dot with few electrons in an orthogonal magnetic field could monitor the crossover to the fully spin polarized state. A Rashba spin-orbit coupling can tune the energy and the spin density of…

强关联电子 · 物理学 2009-11-11 P. Lucignano , B. Jouault , A. Tagliacozzo , B. L. Altshuler

Electron transport properties in a triple-quantum-dot ring with three terminals are theoretically studied. By introducing local Rashba spin-orbit interaction on an individual quantum dot, we calculate the charge and spin currents in one…

介观与纳米尺度物理 · 物理学 2009-11-13 Weijiang Gong , Yisong Zheng , Tianquan Lv

We study the interplay of electron-electron interactions and Rashba spin-orbit coupling in one-dimensional ballistic wires. Using the renormalization group approach we construct the phase diagram in terms of Rashba coupling,…

介观与纳米尺度物理 · 物理学 2007-05-23 V. Gritsev , G. I. Japaridze , M. Pletyukhov , D. Baeriswyl

We investigate the ballistic motion of electrons in III-V semiconductor quantum wells with Rashba spin-orbit coupling in a perpendicular magnetic field. Taking into account the full quantum dynamics of the problem, we explore the…

介观与纳米尺度物理 · 物理学 2008-03-06 John Schliemann