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相关论文: Spin filtering implemented through Rashba and weak…

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The complex oxide heterostructures such as LaAlO3/SrTiO3 (LAO/STO) interface are paradigmatic platforms to explore emerging multi-degrees of freedom coupling and the associated exotic phenomena. In this study, we reveal the effects of…

One-dimensional quantum wires are considered as prospective elements for spin transport and manipulation in spintronics. We study spin dynamics in semiconductor GaAs-like nanowires with disorder and spin-orbit interaction by using a…

介观与纳米尺度物理 · 物理学 2015-06-04 Carlos Echeverría-Arrondo , E. Ya. Sherman

The electronic states of a mesoscopic ring are assessed in the presence of Rashba Spin Orbit coupling and a $U(1)$ gauge field. Spin symmetric coupling to an ideal lead is implemented following B\"uttiker's voltage probe. The exact density…

介观与纳米尺度物理 · 物理学 2014-09-23 Michael Ellner , Nelson Bolívar , Bertrand Berche , Ernesto Medina

Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in a one-dimensional semiconductor microcavity ridge waveguide is reported. A nonresonant laser beam provides the…

介观与纳米尺度物理 · 物理学 2015-07-10 T. Gao , C. Antón , T. C. H. Liew , M. D. Martín , Z. Hatzopoulos , L. Viña , P. S. Eldridge , P. G. Savvidis

We investigate the Zeeman splitting of two-dimensional electrons in an asymmetric silicon quantum well, by electron-spin-resonance (ESR) experiments. Applying a small dc current we observe a shift in the resonance field due to the…

其他凝聚态物理 · 物理学 2009-11-11 Zbyslaw Wilamowski , Hans Malissa , Friedrich Schäffler , Wolfgang Jantsch

An exact solution is derived for the wave function of an electron in a semiconductor quantum wire with spin-orbit interaction and driven by external time dependent harmonic confining potential. The formalism allows analytical expressions…

量子物理 · 物理学 2015-06-11 T. Cadez , J. H. Jefferson , A. Ramsak

We theoretically propose a scheme to synthesize photonic non-Abelian electric field and spin-orbit coupling (SOC) in the synthetic frequency dimension based on a polarization-multiplexed time-modulated ring resonator. Inside the ring…

光学 · 物理学 2025-04-29 Bengy Tsz Tsun Wong , Zehai Pang , Yi Yang

The coherent spin dependent transport through a set of two capacitively coupled quantum dots placed in a magnetic field is considered within the equation of motion method. The magnetic field breaks the spin degeneracy. For special choices…

介观与纳米尺度物理 · 物理学 2007-05-23 S. Lipinski , D. Krychowski

The combined presence of a Rashba and a Zeeman effect in a ballistic one-dimensional conductor generates a spin pseudogap and the possibility to propagate a beam with well defined spin orientation. Without interactions transmission through…

介观与纳米尺度物理 · 物理学 2009-11-11 P. Devillard , A. Crepieux , K. I. Imura , T. Martin

Spin-orbit interaction (SOI) offers a nonferromagnetic scheme to realize spin polarization through utilizing an electric field. Electrically tunable SOI through electrostatic gates have been investigated, however, the relatively weak and…

Basic questions on the nature of spin polarization in two terminal systems and the way in which decoherence breaks Time-Reversal Symmetry (TRS) are analyzed. We exactly solve several one-dimensional models of tunneling electrons and show…

介观与纳米尺度物理 · 物理学 2023-04-04 S. Varela , M. Peralta , V. Mujica , B. Berche , E. Medina

Electron transport through multi-terminal rectangular arrays of quantum rings is studied in the presence of Rashba-type spin-orbit interaction (SOI) and of a perpendicular magnetic field. Using the analytic expressions for the transmission…

介观与纳米尺度物理 · 物理学 2009-11-13 Orsolya Kalman , Peter Foldi , Mihaly G. Benedict , Francois M. Peeters

It is shown that in organic semiconductors where organic magnetoresistance (OMAR) is observed, the exchange interaction between electrons and holes localized at different molecules leads to dynamic spin polarization in the direction of the…

无序系统与神经网络 · 物理学 2022-04-06 A. V. Shumilin

The spin-sensitive charge oscillation, controlled by an external magnetic field, was recently proposed as a mechanism of transformations of qubits, defined as two-electron spin-charge Wannier molecules in a square quantum dot. The paper…

介观与纳米尺度物理 · 物理学 2020-07-30 Ambroz Kregar , Anton Ramsak

Ballistic spin transport through waveguides, with symmetric or asymmetric double stubs attached to them periodically, is studied systematically in the presence of a weak spin-orbit coupling that makes the electrons precess. By an…

介观与纳米尺度物理 · 物理学 2015-06-24 X. F. Wang , P. Vasilopoulos , F. M. Peeters

Spin-orbit coupling (SOC) can give rise to interesting physics, from spin Hall to topological insulators, normally in condensed matter systems. Recently, this topical area has extended into atomic quantum gases in searching for…

量子气体 · 物理学 2012-04-11 Z. F. Xu , L. You

We propose an efficient spin filter including an antidot fabricated on semiconductor heterostructures with strong spin-orbit interaction. The antidot creates a tunable potential on two-dimensional electron gas in the heterostructures, which…

介观与纳米尺度物理 · 物理学 2009-09-17 Tomohiro Yokoyama , Mikio Eto

We consider the optical properties of a single magnetic impurity in a self-assembled quantum dot. We show that using the resonant pumping one can address and manipulate selectively individual spin states of a magnetic impurity. The…

介观与纳米尺度物理 · 物理学 2009-11-10 A. O. Govorov , A. V. Kalameitsev

Semiconductors with strong spin-orbit interactions can exhibit a helical gap with spin-momentum locking opened by a magnetic field. Such a gap is highly spin selective as a result of a topologically protected spin-momentum locking, which…

介观与纳米尺度物理 · 物理学 2020-08-06 Jian Sun , Russell S. Deacon , Xiaochi Liu , Jun Yao , Koji Ishibashi

We study ballistic transport through semiconductor quantum point contact systems under different confinement geometries and applied fields. In particular, we investigate how the {\em lateral} spin-orbit coupling, introduced by asymmetric…

介观与纳米尺度物理 · 物理学 2015-05-13 Anh T. Ngo , P. Debray , Sergio Ulloa