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相关论文: Thermoelectric properties of a quantum dot coupled…

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Thermoelectric transport phenomena in a single-level quantum dot coupled to ferromagnetic leads are considered theoretically in the Kondo regime. The dot is described by the Anderson model with Rashba type spin-orbit interaction. The…

介观与纳米尺度物理 · 物理学 2014-12-10 Łukasz Karwacki , Piotr Trocha , Józef Barnaś

Thermoelectric coefficients of a two dimensional electron gas with the Rashba spin-orbit interaction are presented here. In absence of magnetic field, thermoelectric coefficients are enhanced due to the Rashba spin-orbit interaction. In…

介观与纳米尺度物理 · 物理学 2012-08-02 S. K. Firoz Islam , Tarun Kanti Ghosh

We investigate thermoelectric properties of a ferromagnet-superconductor hybrid structure with Rashba spin-orbit interaction and delta function potential barrier at the interfacial layer. The exponential rise of thermal conductance with…

介观与纳米尺度物理 · 物理学 2017-09-07 Paramita Dutta , Arijit Saha , A. M. Jayannavar

We study thermoelectric transport through double quantum dots system with spin-dependent interdot coupling and ferromagnetic electrodes by means of the non-equilibrium Green function in the linear response regime. It is found that the…

介观与纳米尺度物理 · 物理学 2015-06-04 Qiang Wang , Haiqing Xie , Hujun Jiao , Zhi-Jian Li , Yi-Hang Nie

Quantum heat engines are nanoscale devices that convert heat into work by exploiting quantum effects, such as coherence and interference. Previous studies of these devices did not consider spin-dependent effects, which can influence the…

介观与纳米尺度物理 · 物理学 2025-10-28 Diego García , Sergio Arias , Rosa López

We investigate the thermoelectric properties of a quantum dot coupled to ferromagnetic and superconducting electrodes. The combination of spin polarized tunneling at the ferromagnetic-quantum dot interface and the application of an external…

介观与纳米尺度物理 · 物理学 2016-08-10 Sun-Yong Hwang , Rosa Lopez , David Sanchez

We study the effects caused by Rashba and Dresselhaus spin-orbit coupling over the thermoelectric transport properties of a single-electron transistor, viz., a quantum dot connected to one-dimensional leads. Using linear response theory and…

介观与纳米尺度物理 · 物理学 2022-05-04 M. A. Manya , G. B. Martins , M. S. Figueira

We report on the quantum interference and spin accumulation on double quantum dots with Rashba spin-orbit coupling and electron-electron interaction, based on the Keldysh nonequilibrium Green function formalism. It is shown that Rashba…

介观与纳米尺度物理 · 物理学 2009-11-13 Kuo-Wei Chen , Ching-Ray Chang

We investigate transport and thermoelectric properties of hybrid systems based on a single-level quantum dot and one superconducting lead. The other lead is generally normal-metallic ferromagnet. In the latter case single-particle transport…

介观与纳米尺度物理 · 物理学 2017-05-03 Piotr Trocha , Józef Barnaś

Spin-dependent heat and thermoelectric currents in a quantum ring with Rashba spin-orbit interaction placed in a photon cavity are theoretically calculated. The quantum ring is coupled to two external leads with different temperatures. In a…

介观与纳米尺度物理 · 物理学 2017-10-13 Nzar Rauf Abdullah , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson

We investigate the transport properties of a graphene layer in the presence of Rashba spin-orbit interaction. Quite generally, spin-orbit interactions induce spin splittings and modifications of the graphene bandstructure. We calculate…

介观与纳米尺度物理 · 物理学 2014-12-05 M. I. Alomar , David Sanchez

We discuss the transport properties of a quantum spin-Hall insulator with sizable Rashba spin-orbit coupling in a disk geometry. The presence of topologically protected helical edge states allows for the control and manipulation of spin…

介观与纳米尺度物理 · 物理学 2018-08-28 R. Battilomo , N. Scopigno , C. Ortix

Coherent charge and heat transport through periodically driven nanodevices provide a platform for studying thermoelectric effects on the nanoscale. Here we study a junction comprising a quantum dot connected to two fermionic terminals by…

介观与纳米尺度物理 · 物理学 2024-04-03 Debashree Chowdhury , O. Entin-Wohlman , A. Aharony

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

Thermoelectric effects in a double quantum dot system coupled to external magnetic/nonmagnetic leads are investigated theoretically. The basic thermoelectric transport characteristics, like thermopower, electronic contribution to heat…

介观与纳米尺度物理 · 物理学 2015-03-19 Piotr Trocha , Józef Barnaś

We analyze the linear thermoelectric transport properties of devices with three quantum dots in a star configuration. A central quantum dot is tunnel-coupled to source and drain electrodes and to two additional quantum dots. For a wide…

强关联电子 · 物理学 2016-12-21 J. A. Andrade , Pablo S. Cornaglia

In this work, we study the thermal quantum coherence and fidelity in a semiconductor double quantum dot. The device consists of a single electron in a double quantum dot with Rashba spin-orbit coupling in the presence of an external…

介观与纳米尺度物理 · 物理学 2023-05-24 Merynilda Ferreira , Onofre Rojas , Moises Rojas

We study a system composed of a quantum dot in contact with ferromagnetic leads, held at different temperatures. Spin analogues to the thermopower and thermoelectric figures of merit are defined and studied as a function of junction…

介观与纳米尺度物理 · 物理学 2009-11-13 Y. Dubi , M. Di Ventra

Spin polarization of a two-dimensional electron gas with Rashba spin-orbit interaction, induced by a thermo-current, is considered theoretically. It is shown that a temperature gradient gives rise to an in-plane spin polarization of the…

介观与纳米尺度物理 · 物理学 2013-08-27 A. Dyrdał , M. Inglot , V. K. Dugaev , J. Barnaś

We consider a spin-orbit-coupled two-dimensional electron system under the influence of a thermal gradient externally applied to two attached reservoirs. We discuss the generated voltage bias (charge Seebeck effect), spin bias (spin Seebeck…

介观与纳米尺度物理 · 物理学 2015-03-05 M. I. Alomar , Llorenç Serra , David Sanchez
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