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相关论文: Nonequilibrium spin distribution in single-electro…

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A quantum theory of the spin-dependent scattering of semiconductor electrons by a Schottky barrier at an interface with a ferromagnet is presented. The reflection of unpolarized non-equilibrium carriers produces spontaneous…

介观与纳米尺度物理 · 物理学 2007-05-23 J. P. McGuire , C. Ciuti , L. J. Sham

We consider a problem of persistent magnetization precession in a single domain ferromagnetic nano particle under the driving by the spin-transfer torque. We find that the adjustment of the electronic distribution function in the particle…

介观与纳米尺度物理 · 物理学 2017-03-01 Tim Ludwig , Igor S. Burmistrov , Yuval Gefen , Alexander Shnirman

The electron transport properties of hybrid ferromagnetic|normal metal structures such as multilayers and spin valves depend on the relative orientation of the magnetization direction of the ferromagnetic elements. Whereas the contrast in…

介观与纳米尺度物理 · 物理学 2009-11-11 Arne Brataas , Gerrit E. W. Bauer , Paul J. Kelly

It is shown that spin Hall effect creates uniform spin polarization of electrons in semiconductor with a linear in the momentum spin splitting of conduction band. In turn, the profile of the non-uniform spin polarization accumulated at the…

介观与纳米尺度物理 · 物理学 2007-05-23 V. L. Korenev

Altermagnet is a distinctive magnet phase, which has spin-split energy band but with zero net magnetic moment. In this paper, we propose that altermagnet behaves spin splitting Nernst effect: Under a longitudinal temperature gradient, the…

介观与纳米尺度物理 · 物理学 2025-09-08 Xing-Jian Yi , Yue Mao , Xiancong Lu , Qing-Feng Sun

We theoretically study nonequilibrium spin transport in a superconducting wire connected by tunnel junctions to two ferromagnetic metal wires, each of which serves as an injector or detector of spin-polarized electron current. We present a…

介观与纳米尺度物理 · 物理学 2009-11-13 Yositake Takane

Effects related with deviations from thermodynamic equilibrium take a special place in the modern physics. Among those, non-equilibrium phenomena in quantum systems attract the highest interest. To date, the experimental technique of spin…

介观与纳米尺度物理 · 物理学 2016-06-22 M. M. Glazov

Using the Schwinger-Keldysh approach and the drone (Majorana) fermion representation, we evaluate current distribution in a single-electron transistor in a regime where a total tunnel resistance is small. Nonequilibrium quantum fluctuations…

介观与纳米尺度物理 · 物理学 2017-08-23 Yasuhiro Utsumi

We experimentally study spin accumulation in an aluminium island with all dimensions smaller than the spin relaxation length, so that the spin imbalance throughout the island is uniform. Electrical injection and detection of the spin…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Zaffalon , B. J. van Wees

Spectra of one-electron and collective excitations in narrow-band ferromagnets with unquenched orbital moments are calculated in various theoretical models. The interaction of spin and orbital excitations with conduction electrons results…

强关联电子 · 物理学 2009-11-11 V. Yu. Irkhin , M. I. Katsnelson

We study single electron transport across a single Bi dopant in a Silicon Nanotransistor to assess how the strong hyperfine coupling with the Bi nuclear spin $I=9/2$ affects the transport characteristics of the device. In the sequential…

介观与纳米尺度物理 · 物理学 2013-08-19 F. Delgado , R. Aguado , J. Fernández-Rossier

We theoretically analyze a possibility of electromagnetic wave emission due to electron transitions between spin subbands in a ferromagnet. Different mechanisms of such spin-flip transitions are cousidered. One mechanism is the electron…

介观与纳米尺度物理 · 物理学 2025-04-01 Evgeny Karashtin

Experimental results for sequential transport through a lateral quantum dot in the regime of spin blockade induced by spin dependent tunneling are compared with theoretical results obtained by solving a master equation for independent…

介观与纳米尺度物理 · 物理学 2007-05-23 M. C. Rogge , F. Cavaliere , M. Sassetti , R. J. Haug , B. Kramer

We predict unidirectional magnetoresistance effects arising in a bilayer composed of a nonmagnetic metal and a ferromagnetic insulator, whereby both longitudinal and transverse resistances vary when the direction of the applied electric…

介观与纳米尺度物理 · 物理学 2025-03-10 M. Mehraeen , Pengtao Shen , Steven S. -L. Zhang

We derive a drift-diffusion equation for spin polarization in semiconductors by consistently taking into account electric-field effects and nondegenerate electron statistics. We identify a high-field diffusive regime which has no analogue…

材料科学 · 物理学 2009-11-07 Z. G. Yu , M. E. Flatte

An analytical analysis of quantum shuttle phenomena in a nanoelectromechanical single-electron transistor has been performed in the realistic case, when the electron tunnelling length is much greater than the amplitude of the zero point…

介观与纳米尺度物理 · 物理学 2009-11-10 D. Fedorets , L. Y. Gorelik , R. I. Shekhter , M. Jonson

We present a theory of a single-electron transistor exchange-coupled to a localized spin. We show how to gain detailed quantitative knowledge about the attached spin such as spin size, exchange coupling strength, Land\'e g-factor, and spin…

介观与纳米尺度物理 · 物理学 2009-10-14 Gerold Kiesslich , Gernot Schaller , Clive Emary , Tobias Brandes

ESR-STM is an emerging technique which is capable of detecting the precession of a single spin. We discuss the mechanism of ESR-STM based on a direct exchange coupling between the tunneling electrons and the local precessing spin S. We…

介观与纳米尺度物理 · 物理学 2015-06-24 A. V. Balatsky , Yishay Manassen , Ran Salem

We show that the interplay between charging effects and the non-equilibrium spin accumulation has a dramatic effect in the current through an array of nanostructures attached to ferromagnetic electrodes. Large oscillations in the current as…

介观与纳米尺度物理 · 物理学 2010-10-07 V. Estevez , E. Bascones

We study the evolution of low-temperature magnetoresistance in double quantum wells in the region below 1 Tesla as the applied current density increases. A flip of the magneto-intersubband oscillation peaks, which occurs as a result of the…

介观与纳米尺度物理 · 物理学 2015-05-13 N. C. Mamani , G. M. Gusev , O. E. Raichev , T. E. Lamas , A. K. Bakarov