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The paper proposes the method to analyze the internal dynamics of nanoscopic systems by periodic modulation of the electrochemical potentials of the attached leads and measuring the time-averaged current. The idea is presented using the…

介观与纳米尺度物理 · 物理学 2017-11-15 Krzysztof Ptaszynski

Current-voltage characteristics of a spintromechanical device, in which spin-polarized electrons tunnel between magnetic leads with anti-parallel magnetization through a single level movable quantum dot, are calculated. New exchange- and…

介观与纳米尺度物理 · 物理学 2020-05-20 Olya A. Ilinskaya , Danko Radic , Hee Chul Park , Ilya V. Krive , Robert I. Shekhter , Mats Jonson

We propose a mechanism whereby spin supercurrents can be manipulated in superconductor/ferromagnet proximity systems via nonequilibrium spin injection. We find that if a spin supercurrent exists in equilibrium, a nonequilibrium spin…

超导电性 · 物理学 2020-01-14 Jabir Ali Ouassou , Jason W. A. Robinson , Jacob Linder

We demonstrate that the spin-polarized electron current can interact with a microwave electric field in a resonant manner. The spin-orbit interaction gives rise to an effective magnetic field proportional to the electric current. In the…

材料科学 · 物理学 2009-11-10 B. A. Glavin , K. W. Kim

The subject of this study is spin transport through a molecular orbital connected to two leads, and coupled via exchange interaction with a precessing anisotropic molecular spin in a constant magnetic field. The inelastic spin-flip…

介观与纳米尺度物理 · 物理学 2025-10-02 Milena Filipović

Extensive work on single molecule magnets has identified a fundamental mode of relaxation arising from the nuclear-spin assisted quantum tunnelling of nearly independent and quasi-classical magnetic dipoles. Here we show that nuclear-spin…

强关联电子 · 物理学 2019-03-28 C. Paulsen , S. R. Giblin , E. Lhotel , D. Prabhakaran , K. Matsuhira , G. Balakrishnan , S. T. Bramwell

All-electrical control of spin transport in nanostructures has been the central interest and chal- lenge of spin physics and spintronics. Here we demonstrate on-chip spin polarizing/filtering actions by driving the gate-defined one…

介观与纳米尺度物理 · 物理学 2012-11-13 T. -M. Chen , M. Pepper , I. Farrer , G. A. C. Jones , D. A. Ritchie

Molecular spintronics is made possible by the coupling between electronic configuration and magnetic po- larization of the molecules. For control and application of the individual molecular states it is necessary to both read and write…

介观与纳米尺度物理 · 物理学 2016-04-27 T. Saygun , J. Bylin , H. Hammar , J. Fransson

In spite of the absence of a macroscopic magnetic moment, an anti-ferromagnet is spin-polarized on an atomic scale. The electric current passing through a conducting anti-ferromagnet is polarized as well, leading to spin-transfer torques…

材料科学 · 物理学 2009-09-29 Yuan Xu , Shuai Wang , Ke Xia

We consider the generation of a pure spin-current at zero bias voltage with a single time-dependent potential. To such end we study a device made of a mesoscopic ring connected to electrodes and clarify the interplay between a magnetic…

介观与纳米尺度物理 · 物理学 2014-08-28 J. P. Ramos , L. E. F. Foa Torres , P. A. Orellana , V. M. Apel

We describe a method of controlling the spin wave spectra dynamically in a uniform nanostripe waveguide through spin-polarized currents. A stable periodic magnetization structure is observed when the current flows vertically through the…

材料科学 · 物理学 2015-06-22 Qi Wang , Huaiwu Zhang , Xiaoli Tang , Hans Fangohr , Feiming Bai , Zhiyong Zhong

Recent radio frequency scanning tunneling spectroscopy (rf-STS) experiments have demonstrated nuclear and electron spin excitations up to $\pm12\hbar$ in a single molecular spin quantum dot (qudot). Despite the profound experimental…

We theoretically investigate quantum spin transfer from spin-correlated conduction-electron pairs to localized spins in a ferromagnet, given that electrons are correlated intrinsically. We show that even spin-singlet pairs and triplet pairs…

介观与纳米尺度物理 · 物理学 2026-01-09 Seongmun Hwang , Jung Hyun Oh , Paul M. Haney , Mark D. Stiles , Kyung-Jin Lee

The ability to control spins in semiconductors is important in a variety of fields including spintronics and quantum information processing. Due to the potentially fast dephasing times of spins in the solid state [1-3], spin control…

A pivotal challenge in quantum technologies lies in reconciling long coherence times with efficient manipulation of the quantum states of a system. Lanthanide atoms, with their well-localized 4f electrons, emerge as a promising solution to…

介观与纳米尺度物理 · 物理学 2023-09-28 Stefano Reale , Jiyoon Hwang , Jeongmin Oh , Harald Brune , Andreas J. Heinrich , Fabio Donati , Yujeong Bae

The desire to control and measure individual quantum systems such as atoms and ions in a vacuum has led to significant scientific and engineering developments in the past decades that form the basis of today's quantum information science.…

应用物理 · 物理学 2022-02-16 Yi Chen , Yujeong Bae , Andreas J. Heinrich

Circulating orbital currents produced by the spin-orbit interaction for a single electron spin in a quantum dot are explicitly evaluated at zero magnetic field, along with their effect on the total magnetic moment (spin and orbital) of the…

介观与纳米尺度物理 · 物理学 2014-07-24 J. van Bree , A. Yu. Silov , P. M. Koenraad , M. E. Flatté

Single magnetic molecules may be the smallest functional magnets. An electric-field controllable spin state of magnetic molecules is of fundamental importance for applications while its realization remains challenging. To date the observed…

材料科学 · 物理学 2022-12-16 Yan Lu , Yunlong Wang , Linghan Zhu , Li Yang , Li Wang

Manipulation of the spin-states of a quantum dot by purely electrical means is a highly desirable property of fundamental importance for the development of spintronic devices such as spin-filters, spin-transistors and single-spin memory as…

介观与纳米尺度物理 · 物理学 2008-10-20 J. R. Hauptmann , J. Paaske , P. E. Lindelof

Spin-orbit coupling in inversion-asymmetric magnetic crystals and structures has emerged as a powerful tool to generate complex magnetic textures, interconvert charge and spin under applied current, and control magnetization dynamics.…

介观与纳米尺度物理 · 物理学 2019-10-02 A. Manchon , J. Zelezný , I. M. Miron , T. Jungwirth , J. Sinova , A. Thiaville , K. Garello , P. Gambardella