中文
相关论文

相关论文: Spin conductances and magnetization production in …

200 篇论文

We study helical structures in spin-spiral single crystals. In the continuum approach for the helicity potential energy the simple electronic band splits into two non-parabolic bands. For the Fermi energy greater than the splitting between…

介观与纳米尺度物理 · 物理学 2022-11-23 Andrei Zadorozhnyi , Yuri Dahnovsky

An extension of Drude model is proposed that accounts for spin and spin-orbit interaction of charge carriers. Spin currents appear due to combined action of the external electric field, crystal field and scattering of charge carriers. The…

介观与纳米尺度物理 · 物理学 2009-11-13 Eugene M. Chudnovsky

The helical distribution of the electronic density in chiral molecules, such as DNA and bacteriorhodopsin, has been suggested to induce a spin-orbit coupling interaction that may lead to the so-called chirality-induced spin selectivity…

介观与纳米尺度物理 · 物理学 2020-01-01 Miguel A. Sierra , David Sanchez , Rafael Gutierrez , Gianaurelio Cuniberti , Francisco Dominguez-Adame , Elena Diaz

We derive the transport equations for two-dimensional electron systems with spin-orbit interaction and short-range spin-independent disorder. In the limit of slow spatial variations of the electron distribution we obtain coupled diffusion…

介观与纳米尺度物理 · 物理学 2007-05-23 E. G. Mishchenko , A. V. Shytov , B. I. Halperin

We study the spin and charge currents flowing at the interface of an itinerant ferromagnet with a topological spin-triplet superconductor having different number of time-reversal-invariant Majorana helical modes. Depending on the number of…

超导电性 · 物理学 2016-03-30 Damien Terrade , Dirk Manske , Mario Cuoco

The observation of spin-dependent transport through organic chiral structures has sparked numerous fundamental and applicative questions ranging from biology to spintronics. By now, there is a broad consensus that the effect results from…

介观与纳米尺度物理 · 物理学 2022-01-12 Lior Oppenheim , Karen Michaeli

Here we propose a mechanism by which spin polarization can be generated dynamically in chiral molecular systems undergoing photo-induced electron transfer. The proposed mechanism explains how spin polarization emerges in systems where…

介观与纳米尺度物理 · 物理学 2021-08-19 Thomas P. Fay , David T. Limmer

We propose a three terminal spin polarized stm setup for probing the helical nature of the Luttinger liquid edge state that appears in the quantum spin Hall system. We show that the three-terminal tunneling conductance strongly depends on…

介观与纳米尺度物理 · 物理学 2011-08-09 Sourin Das , Sumathi Rao

We study theoretically spin transport through a single-molecule magnet (SMM) in the sequential and cotunneling regimes, where the SMM is weakly coupled to one ferromagnetic and one normalmetallic leads. By a master-equation approach, it is…

介观与纳米尺度物理 · 物理学 2017-09-19 Haiqing Xie , Fuming Xu , Hujun Jiao , Qiang Wang , J. -Q. Liang

The dynamic coupling between spin and charge currents in non-magnetic conductors is considered. As a consequence of this coupling, the spin dynamics is directly reflected in the electrical impedance of the sample, with a relevant frequency…

介观与纳米尺度物理 · 物理学 2019-08-14 P. S. Alekseev , M. I. Dyakonov

Topological magnetic insulators host chiral gapless edge modes. In the presence of strong interaction effects, the spin of these modes may fractionalize. Studying a 2D array of coupled insulating spin-1/2 chains, we show how spatially…

强关联电子 · 物理学 2025-01-03 Even Thingstad , Pierre Fromholz , Flavio Ronetti , Daniel Loss , Jelena Klinovaja

Magnetic helix (MH) structure can be a role model for future spintronic devices. Utilizing the advantage of constructing possible magnetic configurations, in the present work first time we investigate spintronic behavior, to the best of our…

介观与纳米尺度物理 · 物理学 2019-11-06 Suparna Sarkar , Santanu K. Maiti

The Kondo cloud, represented by the correlations between the magnetic moment and the spin density in the leads of a Kondo setup, is until now eluding its observation. We exploit the unique coupling of spin and direction of motion of the…

介观与纳米尺度物理 · 物理学 2014-02-18 Thore Posske , Björn Trauzettel

We discuss transport through an interferometer formed by helical edge states of the quantum spin Hall insulator. Focusing on effects induced by a strong magnetic impurity placed in one of the arms of interferometer, we consider the…

介观与纳米尺度物理 · 物理学 2021-03-31 R. A. Niyazov , D. N. Aristov , V. Yu. Kachorovskii

Spintronics is an analogue to electronics where spin of the electron rather than its charge is functionally controlled for devices. The generation and detection of spin current without ferromagnetic or exotic/scarce materials are two the…

介观与纳米尺度物理 · 物理学 2018-02-26 Paul C Lou , Sandeep Kumar

We propose a scheme where transport measurements of charge current and its noise can be used to determine the spin Hall conductance in a four-terminal setup. Starting from the scattering formalism we express the spin current and spin Hall…

介观与纳米尺度物理 · 物理学 2009-11-11 Sigurdur I. Erlingsson , Daniel Loss

We show that a propagating Dirac electron with intrinsic spin generically carries a real--space helical conserved current, even in the absence of orbital angular momentum. Using exact Dirac eigenstates in cylindrical confinement, we…

介观与纳米尺度物理 · 物理学 2026-01-23 Ju Gao , Fang Shen

We study coherent spin transport through helical edge states of topological insulator tunnel-coupled to metallic leads. We demonstrate that unpolarized incoming electron beam acquires finite polarization after transmission through such a…

介观与纳米尺度物理 · 物理学 2021-11-10 R. A. Niyazov , D. N. Aristov , V. Yu. Kachorovskii

The generation of unidirectional motion has been a long-standing challenge in engineering of molecular motors. Here, a mechanism driving the rotation is presented based on electron current through helical orbitals on a $\pi$-bonded carbon…

化学物理 · 物理学 2026-03-11 Štěpán Marek , Wulf Wulfhekel , Ferdinand Evers , Richard Korytár

The observation of spin-dependent transmission of electrons through chiral molecules has led to the discovery of chiral-induced spin selectivity (CISS). The remarkably high efficiency of the spin polarizing effect has recently gained…