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相关论文: Levitons in helical liquids with Rashba spin-orbit…

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We consider the superconducting proximity effect in a helical Luttinger liquid at the edge of a 2D topological insulator, and derive the low-energy Hamiltonian for an edge state tunnel-coupled to a s-wave superconductor. In addition to…

介观与纳米尺度物理 · 物理学 2012-01-23 Pauli Virtanen , Patrik Recher

In this review article we describe spin-dependent transport in materials with spin-orbit interaction of Rashba type. We mainly focus on semiconductor heterostructures, topological insulators, graphene and hybrid structures involving…

介观与纳米尺度物理 · 物理学 2015-09-29 Dario Bercioux , Procolo Lucignano

The combined effect of Rashba and Dresselhaus spin-orbit interactions on the physics of a helical Luttinger liquid coupled to a Kondo impurity is studied. A Rashba coupling can potentially destroy the Kondo singlet formation in certain…

介观与纳米尺度物理 · 物理学 2013-06-18 Erik Eriksson

The spin degree of freedom is crucial for both understanding and exploiting the particular properties of the edges of two-dimensional topological insulators. In the absence of superconductivity and magnetism, Rashba coupling is the most…

介观与纳米尺度物理 · 物理学 2020-11-18 Lorenzo Privitera , Niccolò Traverso Ziani , Inès Safi , Björn Trauzettel

The edge states of a quantum spin Hall insulator exhibit helical properties, which has generated significant interest in the field of spintronics. Although it is predicted theoretically that Rashba spin-orbit coupling can effectively…

介观与纳米尺度物理 · 物理学 2025-03-12 Wei Luo , Yating Zhang , Wei Chen

Precise shaping of coherent electron sources allows the controlled creation of wavepackets into a one dimensional (1D) quantum conductor. Periodic trains of Lorentzian pulses have been shown to induce minimal excitations without creating…

介观与纳米尺度物理 · 物理学 2019-10-17 Matteo Acciai , Alessio Calzona , Matteo Carrega , Thierry Martin , Maura Sassetti

The combination of Rashba spin-orbit coupling and potential disorder induces a random current operator for the edge states of a 2D topological insulator. We prove that charge transport through such an edge is ballistic at any temperature,…

介观与纳米尺度物理 · 物理学 2016-02-26 Hong-Yi Xie , Heqiu Li , Yang-Zhi Chou , Matthew S. Foster

We consider two helical liquids on opposite edges of a narrow two-dimensional topological insulator, which are connected by one or several local tunnel junctions. In the presence of spatially inhomogeneous Rashba spin-orbit coupling, the…

介观与纳米尺度物理 · 物理学 2013-10-29 Christoph P. Orth , Grégory Strübi , Thomas L. Schmidt

We investigate the transport properties of a superconducting quantum point contact in the presence of an arbitrary periodic drive. In particular, we calculate the dc current and noise in the tunnel limit, obtaining general expressions in…

介观与纳米尺度物理 · 物理学 2019-08-21 Matteo Acciai , Flavio Ronetti , Dario Ferraro , Jérôme Rech , Thibaut Jonckheere , Maura Sassetti , Thierry Martin

Spin-momentum locking in a semiconductor device with strong spin-orbit coupling (SOC) is a fundamental goal of nanoscale spintronics and an important prerequisite for the formation of Majorana bound states. Such a helical state is predicted…

介观与纳米尺度物理 · 物理学 2017-07-11 S. Heedt , N. Traverso Ziani , F. Crépin , W. Prost , St. Trellenkamp , J. Schubert , D. Grützmacher , B. Trauzettel , Th. Schäpers

We study the helical edge states of a two-dimensional topological insulator without axial spin symmetry due to the Rashba spin-orbit interaction. Lack of axial spin symmetry can lead to so-called generic helical edge states, which have…

介观与纳米尺度物理 · 物理学 2016-05-27 Laura Ortiz , Rafael A. Molina , Gloria Platero , Anders Mathias Lunde

We show that two-terminal transport can measure the Luttinger liquid (LL) parameter $K$, in helical LLs at the edges of two dimensional topological insulators (TIs) with Rashba spin-orbit coupling. We consider a Coulomb drag geometry with…

介观与纳米尺度物理 · 物理学 2015-10-30 Yang-Zhi Chou , Alex Levchenko , Matthew S. Foster

In this work we study interacting electrons on square lattice in the presence of strong Rashba spin-orbit interaction. The spin-orbit term forces the time-reversal electron states to be paired in even Cooper channels. For concreteness, we…

强关联电子 · 物理学 2019-03-27 Rasoul Ghadimi , Mehdi Kargarian , S. Akbar Jafari

We investigate the linear conductance of a stripe of spin-orbit interaction in a 2D electron gas; that is, a 2D region of length $\ell$ along the transport direction and infinite in the transverse one in which a spin-orbit interaction of…

介观与纳米尺度物理 · 物理学 2015-05-19 M. M. Gelabert , Ll. Serra

A detailed theory of a phase diagram of a 2D surface superconductor in a parallel magnetic field is presented. A spin-orbital interaction of the Rashba type is known to produce at a high magnetic field $h$ (and in the absence of impurities)…

超导电性 · 物理学 2009-11-13 Ol'ga Dimitrova , M. V. Feigel'man

We study strongly correlated helical liquids with and without Rashba coupling using quantum Monte Carlo simulations of the Kane-Mele model with a Hubbard interaction at the edge. Independent of the Rashba coupling, we find that interactions…

强关联电子 · 物理学 2014-12-31 Martin Hohenadler , Fakher F. Assaad

We study the electrical transport properties of a two-dimensional electron gas with the Rashba spin-orbit interaction in presence of a constant perpendicular magnetic field $(B_0 \hat z)$ which is weakly modulated by ${\bf B_1} = B_1 \cos…

介观与纳米尺度物理 · 物理学 2015-03-19 SK Firoz Islam , Tarun Kanti Ghosh

The quasi-two-dimensional electron gas found at the LaAlO3/SrTiO3 interface offers exciting new functionalities, such as tunable superconductivity, and has been proposed as a new nanoelectronics fabrication platform. Here we lay out a new…

强关联电子 · 物理学 2015-05-14 A. D. Caviglia , M. Gabay , S. Gariglio , N. Reyren , C. Cancellieri , J. -M. Triscone

We investigate the quantum phase transitions of a two-dimensional Bose-Hubbard model in the presence of a Rashba spin-orbit coupling with and without thermal fluctuations. The interplay of single-particle hopping, strength of spin-orbit…

量子气体 · 物理学 2021-12-14 Kuldeep Suthar , Pardeep Kaur , Sandeep Gautam , Dilip Angom

We theoretically obtain the phase diagram of localized magnetic impurity spins arranged in a one-dimensional chain on top of a one- or two-dimensional electron gas with Rashba spin-orbit coupling. The interactions between the spins are…

介观与纳米尺度物理 · 物理学 2014-08-05 Younghyun Kim , Meng Cheng , Bela Bauer , Roman M. Lutchyn , S. Das Sarma
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