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Related papers: Spin inversion devices with Fano anti-resonances

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We study spin-dependent conductance in a system composed of a ferromagnetic (FM) Scanning Tunneling Microscope (STM) tip coupled to a metallic host surface with an adatom. The Kondo resonance is taken into account via the Doniach-Sunjic…

Strongly Correlated Electrons · Physics 2015-05-13 A. C. Seridonio , F. M. Souza , J. Del Nero , I. A. Shelykh

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

Spin waves, the collective excitations of the magnetic order parameter, and magnons, the associated quasiparticles, are envisioned as possible data carriers in future wave-based computing architectures. On the road towards spin-wave…

We demonstrate the injection and transport of spin-polarized electrons through n-type doped silicon with in-plane spin-valve and perpendicular magnetic field spin precession and dephasing ("Hanle effect") measurements. A voltage applied…

Materials Science · Physics 2009-11-13 Hyuk-Jae Jang , Jing Xu , Jing Li , Biqin Huang , Ian Appelbaum

The anomalous spin transport coefficients of gapped Dirac electrons are studied with application to a quasi-two-dimensional organic conductor $\alpha$-(BETS)$_2$I$_3$ in mind. In the presence of a gap induced by spin-orbit interaction, we…

Mesoscale and Nanoscale Physics · Physics 2022-02-04 Masao Ogata , Soshun Ozaki , Hiroyasu Matsuura

We have studied the spin transport characteristics of a spin metal-oxide-semiconductor field-effect transistor (spin MOSFET), particularly the bias voltage dependence of the electron spin polarization P_S in Si and the magnetoresistance…

Mesoscale and Nanoscale Physics · Physics 2025-09-09 Shoichi Sato , Masaaki Tanaka , Ryosho Nakane

We present a method for efficient spin wave guiding within the magnonic nanostructures. Our technique is based on the anomalous refraction in the metamaterial flat slab. The gradual change of the material parameters (saturation…

Applied Physics · Physics 2020-05-20 S Mieszczak , O. Busel , P. Gruszecki , A. N. Kuchko , J. W. Kłos , M. Krawczyk

We propose a semiconductor structure that can rotate the electron spin without using ferromagnetic contacts, tunneling barriers, external radiation etc. The structure consists of a strongly curved one-dimensional ballistic wire with…

Mesoscale and Nanoscale Physics · Physics 2018-05-03 Maxim P. Trushin , Alexander L. Chudnovskiy

Coupling of spin states and space motion of conduction electrons due to spin-orbit interaction opens up possibilities for manipulation of the electron spins by electrical means. It is shown here that spin orientation of a two-dimensional…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 S. A. Tarasenko

We present new mechanism for manipulation of the spin-wave amplitude through the use of the dynamic charge-mediated magnetoelectric effect in ultrathin multilayers composed of dielectric thin-film capacitors separated by a ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2020-01-22 Piotr Graczyk , Maciej Krawczyk

All-optical spin switching is a potential trailblazer for information storage and communication at an unprecedented fast rate and free of magnetic fields. However, the current wisdom is largely based on semiempirical models of effective…

Materials Science · Physics 2017-10-25 G. P. Zhang , Z. Babyak , Y. Xue , Y. H. Bai , Thomas F. George

Introducing spin-polarized carriers in semiconductor lasers reveals an alternative path to realize room-temperature spintronic applications, beyond the usual magnetoresistive effects. Through carrier recombination, the angular momentum of…

We report two non-degenerate magnon modes with opposite spins or chiralities in collinearly antiferromagnetic insulators driven by symmetry-governed anisotropic exchange couplings. The consequent giant spin splitting contributes to spin…

Mesoscale and Nanoscale Physics · Physics 2023-07-20 Qirui Cui , Bowen Zeng , Tao Yu , Hongxin Yang , Ping Cui

Two-dimensional materials offer new opportunities for both fundamental science and technological applications, by exploiting the electron spin. While graphene is very promising for spin communication due to its extraordinary electron…

Mesoscale and Nanoscale Physics · Physics 2017-06-08 Ahmet Avsar , Jun You Tan , Marcin Kurpas , Martin Gmitra , Kenji Watanabe , Takashi Taniguchi , Jaroslav Fabian , Barbaros Ozyilmaz

To determine the state of spin polarization of the 3D electron gas at very low densities and zero temperature, we calculate the energy versus spin polarization using Diffusion Quantum Monte Carlo methods with backflow wavefunctions and…

Strongly Correlated Electrons · Physics 2009-11-07 F. H. Zong , C. Lin , D. M. Ceperley

Local modification of magnetic properties of nanoelements is a key to design future-generation magnonic devices, in which information is carried and processed via spin waves. One of the biggest challenges here is to fabricate simple and…

Mesoscale and Nanoscale Physics · Physics 2020-04-03 O. V. Dobrovolskiy , R. Sachser , S. A. Bunyaev , D. Navas , V. M. Bevz , M. Zelent , W. Smigaj , J. Rychly , M. Krawczyk , R. V. Vovk , M. Huth , G. N. Kakazei

A theoretical proposal for realizing and detecting spin supercurrent in an isotropic antiferromagnetic insulator is reported. Superfluid spin transport is achieved by inserting the antiferromagnet between two metallic reservoirs and…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 So Takei , Bertrand I. Halperin , Amir Yacoby , Yaroslav Tserkovnyak

Spin-based logic devices could operate at very high speed with very low energy consumption and hold significant promise for quantum information processing and metrology. Here, an in-house developed, experimentally verified, ensemble…

Computational Physics · Physics 2018-01-03 B. Thorpe , K. Kalna , F. C. Langbein , S Schirmer

Compensated ferrimagnets are promising materials for fast spintronic applications based on domain wall motion as they combine the favourable properties of ferromagnets and antiferromagnets. They inherit from antiferromagnets immunity to…

A theoretical prediction of the spin-dependent electron self-energy and in-plane transport of a two-dimensional electron gas in proximity with a ferromagnetic gate is presented. The application of the predicted spin-dependent properties is…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 C. Ciuti , J. P. McGuire , L. J. Sham
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