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Related papers: Strain-Induced Coupling of Spin Current to Nanomec…

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We investigate the properties of strongly correlated electronic models on a flux-threaded ring connected to semi-infinite free-electron leads. The interference pattern of such an Aharonov-Bohm ring shows sharp dips at certain flux values,…

Strongly Correlated Electrons · Physics 2009-11-10 K. Hallberg , A. A. Aligia , A. P. Kampf , B. Normand

The spatial separation of electron spins followed by the control of their individual spin dynamics has recently emerged as an essential ingredient in many proposals for spin-based technologies because it would enable both of the two spin…

We theoretically investigate the spin-charge transport in two-terminal device of graphene nanoribbons in the presence of an uniform uniaxial strain, spin-orbit coupling, exchange field and smooth staggered potential. We show that the…

Mesoscale and Nanoscale Physics · Physics 2014-09-25 Ginetom S. Diniz , Marcos R. Guassi , Fanyao Qu

We present results of a cross-disciplinary theoretical research at the interface of spin physics and hot-electron transport. A moderately strong electric field is assumed to provide the streaming regime where each free charge carrier, an…

Mesoscale and Nanoscale Physics · Physics 2014-04-29 L. E. Golub , E. L. Ivchenko

Spin-dependent transport is investigated in ballistic regime through the interface between a ferromagnet and a spin spiral. We show that spin-dependent interferences lead to a new type of diffraction called "spin-diffraction". It is shown…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Aurélien Manchon , Natalya Ryzhanova , A. Vedyayev , Bernard Dieny

Electron fully spin-polarized edge states in graphene emerged at the interfaces of a nonuniform magnetic field are studied numerically in a tight-binding model, with both the orbital and Zeeman-splitting effects of magnetic field…

Materials Science · Physics 2011-09-19 Lei Xu , Jin An , Chang-De Gong

The objective of this paper is to draw attention to a possible new approach for measuring the spin excitation spectrum of a spin array by placing it in intimate contact with the channel of a spin-valve device in an anti-parallel (AP)…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Sayeef Salahuddin , Supriyo Datta

We propose a mechanism to drive singlet-triplet spin transitions electrically, in a wide class of graphene nanostructures that present pairs of in-gap zero modes, localized at opposite sublattices. Examples are rectangular nanographenes…

Mesoscale and Nanoscale Physics · Physics 2018-05-23 R. Ortiz , N. A. García-Martínez , J. L. Lado , J. Fernández-Rossier

The notion of decoupling of spin and charge currents is one of the basic principles underlying the rapidly expanding feld of Spintronics. However, no direct demonstration of the phenomenon exists. We report a novel measurement, in which a…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 M. Urech , V. Korenivski , N. Poli , D. B. Haviland

Spin-orbit interaction couples electron spins to electric fields and allows electrical monitoring of electron spins and electrical detection of spin dynamics. Competing mechanisms of spin-orbit interaction are compared, and optimal…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Emmanuel I. Rashba

We study spin-dependent transport in a suspended carbon nanotube quantum dot in contact with two ferromagnetic leads and with the dot's spin coupled to the flexural mechanical modes. The spin-vibration interaction induces spin-flip…

Mesoscale and Nanoscale Physics · Physics 2015-03-03 Pascal Stadler , Wolfgang Belzig , Gianluca Rastelli

We propose to use the lateral interface between two regions with different strengths of the spin-orbit interaction(s) to spin-polarize the electrons in gated two dimensional semiconductor heterostructures. For a beam with a non zero angle…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. Khodas , A. Shekhter , A. M. Finkel'stein

The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter. Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable form of quantum…

We propose a spintronic device to generate spin polarization in a mesoscopic region by purely electric means. We show that the spin Hall effect in combination with the stirring effect are sufficient to induce measurable spin polarization in…

Mesoscale and Nanoscale Physics · Physics 2009-07-27 Yu. V. Pershin , N. A. Sinitsyn , A. Kogan , A. Saxena , D. L. Smith

We present the derivation of an ab-initio and parameter free effective electron-electron interaction that goes beyond the screened RPA and accounts for superconducting pairing driven by spin-fluctuations. The construction is based on many…

Superconductivity · Physics 2015-06-23 F. Essenberger , A. Sanna , A. Linscheid , F. Tandetzky , G. Profeta , P. Cudazzo , E. K. U. Gross

We investigate quantum coherence of electron spin transported through a semiconductor spintronic device, where spins are envisaged to be controlled by electrical means via spin-orbit interactions. To quantify the degree of spin coherence,…

Mesoscale and Nanoscale Physics · Physics 2017-08-23 Branislav K. Nikolic , Satofumi Souma

The abilities to inject and detect spin carriers are fundamental for research on transport and manipulation of spin information. Pure electronic spin currents have been recently studied in nanoscale electronic devices using a non-local…

Mesoscale and Nanoscale Physics · Physics 2012-09-25 I. J. Vera-Marun , V. Ranjan , B. J. van Wees

At low temperatures, electrons in semiconductors are bound to shallow donor impurity ions, neutralizing their charge in equilibrium. Inelastic scattering of other externally-injected conduction electrons accelerated by electric fields can…

Materials Science · Physics 2015-06-22 Lan Qing , Jing Li , Ian Appelbaum , Hanan Dery

In recent years, there has been growing interest in harnessing non-collinear antiferromagnets (NCAFMs) for applications in antiferromagnetic spintronics. A key requirement for their practical use is the ability to control the spin order in…

Mesoscale and Nanoscale Physics · Physics 2025-09-18 Mithuss Tharmalingam , Feodor Svetlanov Konomaev , Kjetil M. D. Hals

Spintronics relies on the ability to transport and utilize the spin properties of an electron rather than its charge. We describe a spin rachet at the single-electron level that produces spin currents with no net bias or charge transport.…

Mesoscale and Nanoscale Physics · Physics 2011-03-02 Marius V. Costache , Sergio O. Valenzuela