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相关论文: Fano-Rashba effect in a quantum wire

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We analyze the linear conductance of a semiconductor quantum wire containing a region where a local Rashba spin-orbit interaction is present. We show that Fano lineshapes appear in the conductance due to the formation of quasi bound states…

介观与纳米尺度物理 · 物理学 2007-05-23 Llorens Serra , David Sanchez

We investigate the electronic transport in a quantum wire with localized Rashba interaction. The Rashba field forms quasi-bound states which couple to the continuum states with an opposite spin direction. The presence of this Rashba dot…

介观与纳米尺度物理 · 物理学 2009-11-11 Rosa Lopez , David Sanchez , Llorens Serra

We consider the electronic transport through a Rashba quantum dot coupled to ferromagnetic leads. We show that the interference of localized electron states with resonant electron states leads to the appearance of the Fano-Rashba effect.…

介观与纳米尺度物理 · 物理学 2009-11-13 P. A. Orellana , M. Amado , F. Dominguez-Adame

We study the interference of two tunable Rashba regions in a quantum wire with one propagating mode. The transmission dips (Fano-Rashba dips) of the two regions either cross or anti cross depending on the distance between the two regions.…

介观与纳米尺度物理 · 物理学 2015-03-18 A. Renart , M. M. Gelabert , L. Serra

This article presents an overview of results pertaining to electronic structure, transport properties, and interaction effects in ballistic quantum wires with Rashba spin splitting. Limits of weak and strong spin--orbit coupling are…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Governale , U. Zuelicke

We present a formalism to study quantum networks made up by single-channel quantum wires in the presence of Rashba spin-orbit coupling and magnetic field. In particular, linear transport through one-dimensional and two-dimensional…

介观与纳米尺度物理 · 物理学 2007-05-23 Dario Bercioux , Michele Governale , Vittorio Cataudella , Vincenzo Marigliano Ramaglia

Quantum wires with periodic local Rashba spin-orbit couplings are proposed for a higher performance of spin field-effect transistor. Fano-Rashba quantum interference due to the spin-dependent modulated structure gives rise to a broad energy…

介观与纳米尺度物理 · 物理学 2008-12-20 L. Wang , K. Shen , S. Y. Cho , M. W. Wu

We analyze the spectral and transport properties of ballistic quasi one-dimensional systems in the presence of spin-orbit coupling and in-plane agnetic fields. Our results demonstrate that Rashba precession and intersubband coupling must be…

介观与纳米尺度物理 · 物理学 2009-11-11 Llorens Serra , David Sanchez , Rosa Lopez

We present semiclassical and quantum mechanical results for the effects of a strong magnetic field in Quantum Wires in the presence of Rashba Spin Orbit coupling. Analytical and numerical results show how the perturbation acts in the…

介观与纳米尺度物理 · 物理学 2016-08-31 S. Bellucci , P. Onorato

We study a quantum network extending in one-dimension (chain of square loops connected at one vertex) made up of quantum wires with Rashba spin-orbit coupling. We show that the Rashba effect may give rise to an electron localization…

介观与纳米尺度物理 · 物理学 2007-05-23 Dario Bercioux , Michele Governale , Vittorio Cataudella , Vincenzo Marigliano Ramaglia

The electronic transport in a system of two quantum rings side-coupled to a quantum wire is studied via a single-band tunneling tight-binding Hamiltonian. We derived analytical expressions for the conductance and spin polarization when the…

介观与纳米尺度物理 · 物理学 2008-03-31 V. M. Apel , P. A. Orellana , M. Pacheco

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 investigate the influence of a perpendicular magnetic field on the spectral and spin properties of a ballistic quasi-one-dimensional electron system with Rashba effect. The magnetic field strongly alters the spin-orbit induced…

介观与纳米尺度物理 · 物理学 2009-11-10 Stefan Debald , Bernhard Kramer

The effect of Rashba spin-orbit interaction in quantum wires with hard-wall boundaries is discussed. The exact wave function and eigenvalue equation are worked out pointing out the mixing between the spin and spatial parts. The spectral…

介观与纳米尺度物理 · 物理学 2007-05-23 C. A. Perroni , D. Bercioux , V. M. Ramaglia , V. Cataudella

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 investigate intersubband mixing effects in multichannel quantum wires in the presence of Rashba spin-orbit coupling and attached to two terminals. When the contacts are ferromagnetic and their magnetization direction is perpendicular to…

介观与纳米尺度物理 · 物理学 2010-04-29 M. M. Gelabert , Llorens Serra , David Sanchez , Rosa Lopez

Semiconductor Rashba nanowires are quasi-one dimensional systems that have large spin-orbit (SO) coupling arising from a broken inversion symmetry due to an external electric field. There exist parametrized multiband models that can…

介观与纳米尺度物理 · 物理学 2020-08-25 Samuel D. Escribano , Alfredo Levy Yeyati , Elsa Prada

We consider theoretically a $1D$-semiconducting wire with strong Rashba interaction in proximity with $s$-wave superconductor, driven into topological phase by external magnetic field. Additionally, we take into account on-site Coulomb…

超导电性 · 物理学 2022-07-11 Piotr Stefański

We investigate the transport properties of ballistic quantum wires in the presence of Zeeman spin splittings and a spatially inhomogeneous Rashba interaction. The Zeeman interaction is extended along the wire and produces gaps in the energy…

介观与纳米尺度物理 · 物理学 2009-11-13 David Sanchez , Llorens Serra , Mahn-Soo Choi

We propose a mechanism for spin polarized photocurrent generation in quantum wires. The effect is due to the combined effect of Rashba spin-orbit interaction, external magnetic field and microwave radiation. The time-independent…

介观与纳米尺度物理 · 物理学 2007-05-23 Yuriy V. Pershin , Carlo Piermarocchi
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