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Related papers: Spin-orbit coupling in a Quantum Dot at high magne…

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We study the interplay of both Rashba and Dresselhaus spin-orbit couplings (SOCs) and a uniform perpendicular magnetic field $\textbf{B}$ on the transport of a spin-polarized electron along a curved quantum wire. Eigenenergies and…

Mesoscale and Nanoscale Physics · Physics 2014-10-27 Carlos Baldo , Cristine Villagonzalo

A quantum dot with spin-orbit interaction can work as an efficient spin filter if it is connected to N (> 2) external leads via tunnel barriers. When an unpolarized current is injected to a quantum dot from a lead, polarized currents are…

Mesoscale and Nanoscale Physics · Physics 2010-12-30 Mikio Eto , Tomohiro Yokoyama

We show that the spin-orbit interaction (SOI) arising due to the in-plane electric field of the Coulomb repulsion between electrons in a two-dimensional quantum well produces an attractive component in the pair interaction Hamiltonian that…

Strongly Correlated Electrons · Physics 2020-02-12 Yasha Gindikin , Vladimir A. Sablikov

We make detailed analysis of each possible spin-orbit coupling of zincblende narrow-gap cylindrical quantum dots built in two-dimensional electron gas. These couplings are related to both bulk (Dresselhaus) and structure (Rashba) inversion…

Atomic Physics · Physics 2007-05-23 C. F. Destefani , S. E. Ulloa , G. E. Marques

We present a new model for the study of spin-orbit coupling in interacting quasi-one-dimensional systems and solve it exactly to find the spectral properties of such systems. We show that the combination of spin-orbit coupling and…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. V. Moroz , K. V. Samokhin , C. H. W. Barnes

Exact wave functions and energy levels are obtained for an electron in a two-dimensional semiconductor circular quantum ring with a confining potential of finite depth in the presence of both an external magnetic field and the Rashba…

Mathematical Physics · Physics 2012-12-07 V. V. Kudryashov , A. V. Baran

We perform a systematic exact diagonalization study of spin-orbit coupling effects for stationary few-electron states confined in quasi two-dimensional double quantum dots. We describe the spin-orbit-interaction induced coupling between…

Mesoscale and Nanoscale Physics · Physics 2010-06-17 M. P. Nowak , B. Szafran

We present both theory and numerical-computation results for the transmission and reflection probability currents of a charged particle across a potential step in the presence of a Rashba spin-orbit interaction. By varying kinetic energy…

Mesoscale and Nanoscale Physics · Physics 2022-03-22 Po-Hsin Shih , Godfrey Gumbs , Danhong Huang , Andrii Iurov , Yonatan Abranyos

We study the Kondo effect of a two-orbital vertical quantum dot (QD) coupled to two ferromagnetic leads by employing an equation of motion method. When the ferromagnetic leads are coupled with parallel spin polarization, we find three peaks…

Strongly Correlated Electrons · Physics 2011-04-19 Hitoshi Yoshizumi , Kensuke Inaba , Tomoko Kita , Sei-ichiro Suga

We derive an effective Hamiltonian which describes the dynamics of electrons in the conduction band of transition metal dichalcogenides (TMDC) in the presence of perpendicular electric and magnetic fields. We discuss in detail both the…

Mesoscale and Nanoscale Physics · Physics 2014-03-18 Andor Kormányos , Viktor Zólyomi , Neil D. Drummond , Guido Burkard

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…

Strongly Correlated Electrons · Physics 2019-03-27 Rasoul Ghadimi , Mehdi Kargarian , S. Akbar Jafari

We apply the method of the non-equilibrium statistical operator in order to describe the magneto-electric effect in 2D electron system with the spin-orbit interaction, and find the polarization of spins of the charge carriers in quantizing…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 I. I. Lyapilin , A. E. Patrakov

We propose and theoretically investigate spin superconducting qubits. Spin superconducting qubit consists of a single spin confined in a Josephson junction. We show that owing to spin-orbit interaction, superconducting difference across the…

Mesoscale and Nanoscale Physics · Physics 2012-12-07 C. Padurariu , Yu. V. Nazarov

We study the effect of the coupling between the hole $s$ shell of one quantum dot and the $p$ shell in the other dot forming a quantum dot molecule on the spin relaxation between the sublevels of the hole $s$ state. Using an effective model…

Mesoscale and Nanoscale Physics · Physics 2019-08-02 Karol Kawa , Paweł Machnikowski

Magnetization dynamics in a ferromagnet can induce a spin-dependent electric field through spin motive force. Spin current generated by the spin-dependent electric field can in turn modify the magnetization dynamics through spin-transfer…

Mesoscale and Nanoscale Physics · Physics 2012-05-29 Kyoung-Whan Kim , Jung-Hwan Moon , Kyung-Jin Lee , Hyun-Woo Lee

The magnetization of anisotropic quantum dots in the presence of the Rashba spin-orbit interaction has been studied for three interacting electrons in the dot. We observe unique behaviors of magnetization that are direct reflections of the…

Mesoscale and Nanoscale Physics · Physics 2015-01-07 Siranush Avetisyan , Tapash Chakraborty , Pekka Pietilainen

A new type of blockade effect - spin-orbit blockade (SOB) - is found in the conduction of a quantum dot (QD) made of a material with spin-orbit interaction. The blockade arises from spin-filtering effect in a quantum point contact (QPC),…

Mesoscale and Nanoscale Physics · Physics 2012-04-25 Sunwoo Kim , Yoshiaki Hashimoto , Yasuhiro Iye , Shingo Katsumoto

We theoretically explore the possibility of creating spin quantum entanglement in a system of two electrons confined respectively in two vertically coupled quantum dots in the presence of Rashba type spin-orbit coupling. We find that the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Nan Zhao , L. Zhong , Jia-Lin Zhu , C. P. Sun

We review our investigation of the spin dynamics for two electrons confined to a double quantum dot under the influence of the hyperfine interaction between the electron spins and the surrounding nuclei. Further we propose a scheme to…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 D. Klauser , W. A. Coish , Daniel Loss

When the inversion symmetry is broken at a surface, spin-orbit interaction gives rise to spin-dependent energy shifts - a phenomenon which is known as the spin Rashba effect. Recently, it has been recognized that an orbital counterpart of…

Mesoscale and Nanoscale Physics · Physics 2017-04-28 Dongwook Go , Jan-Philipp Hanke , Patrick M. Buhl , Frank Freimuth , Gustav Bihlmayer , Hyun-Woo Lee , Yuriy Mokrousov , Stefan Blügel
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