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Study of photonic spin-orbital interactions, which involves control of the propagation and spatial distributions of light with the polarization of electromagnetic fields, is not only important at the fundamental level but also has…

The technique of propagating spin wave spectroscopy is applied to a 20 nm thick Fe/MgO (001) film. The magnetic parameters extracted from the position of the resonance peaks are very close to those tabulated for bulk iron. From the…

材料科学 · 物理学 2017-11-22 Olga Gladii , David Halley , Yves Henry , Matthieu Bailleul

We find that detuning an optical pulse train from electronic transitions in quantum dots controls the direction of nuclear spin flips. The optical pulse train generates electron spins that precess about an applied magnetic field, with a…

量子物理 · 物理学 2015-05-13 S. G. Carter , A. Shabaev , Sophia E. Economou , T. A. Kennedy , A. S. Bracker , T. L. Reinecke

As one of the fundamental magnonic devices, a magnonic splitter device has been proposed and spin wave propagation in this device has been studied numerically and experimentally. In the present work, we fabricated a T-shaped magnonic…

介观与纳米尺度物理 · 物理学 2023-08-29 Takuya Taniguchi , Jan Sahliger , Christian H. Back

We characterize the role of the spin-orbit coupling between electrons and the confining potential of the edge in nonequilibrium 2D homogeneous electronic gas. We derive a simple analytical result for the magnitude of the current induced…

介观与纳米尺度物理 · 物理学 2011-03-18 Peter Bokes , Frantisek Horvath

We have investigated optically-excited magnetoelastic waves by phase-resolved spin-wave tomography (PSWaT). PSWaT reconstructs dispersion relation of spin waves together with their phase information by using time-resolved magneto-optical…

材料科学 · 物理学 2018-07-04 Yusuke Hashimoto , Tom H. Johansen , Eiji Saitoh

Spin waves in magnetic microresonators are at the core of modern magnonics. Here we demonstrate a new method of tunable excitation of different spin wave modes in magnetic microdisks by using a train of laser pulses coming at a repetition…

We experimentally demonstrate the operation of a spin-wave Rowland spectrometer. In the proposed device geometry, spin waves are coherently excited on a diffraction grating and form an interference pattern that spatially separates spectral…

Spin waves are promising candidates to carry, transport, and process information. Controlling the propagation characteristics of spin waves in magnetic materials is an essential ingredient for designing spin-wave based computing…

应用物理 · 物理学 2020-07-29 Morteza Mohseni , Burkard Hillebrands , Philipp Pirro , Mikhail Kostylev

Real magnonic crystals - periodic magnetic media for spin wave (magnon) propagation - may contain some defects. We report theoretical spin wave spectra of a one dimensional magnonic crystal with an isolated defect. The latter is modeled by…

材料科学 · 物理学 2007-10-25 V. V. Kruglyak , M. L. Sokolovskii , V. S. Tkachenko , A. N. Kuchko

We demonstrate microwave manipulation of the spin states of electrically injected spin-polarized electrons in silicon. Although the silicon channel is bounded by ferromagnetic metal films, we show that moderate microwave power can be…

介观与纳米尺度物理 · 物理学 2013-12-16 C. C. Lo , J. Li , I. Appelbaum , J. J. L. Morton

Spin waves are investigated in Yttrium Iron Garnet (YIG) waveguides with a thickness of 39 nm and widths ranging down to 50 nm, i.e., with aspect ratios thickness over width approaching unity, using Brillouin Light Scattering spectroscopy.…

介观与纳米尺度物理 · 物理学 2019-06-26 Q. Wang , B. Heinz , R. Verba , M. Kewenig , P. Pirro , M. Schneider , T. Meyer , B. Lägel , C. Dubs , T. Brächer , A. V. Chumak

Spin and angular momenta of light are important degrees of freedom in nanophotonics which control light propagation, optical forces and information encoding. Typically, optical angular momentum is generated using q-plates or spatial light…

光学 · 物理学 2020-02-28 Alessandro Ciattoni , Claudio Conti , Anatoly Zayats , Andrea Marini

Controlling the phase and amplitude of spin waves in magnetic insulators with an electric field opens the way to fast logic circuits with ultra-low power consumption. One way to achieve such control is to manipulate the magnetization of the…

介观与纳米尺度物理 · 物理学 2024-02-26 Rostyslav O. Serha , Vitaliy I. Vasyuchka , Alexander A. Serga , Burkard Hillebrands

Conduction electrons are used to optically polarize, detect and manipulate nuclear spin in a (110) GaAs quantum well. Using optical Larmor magnetometry, we find that nuclear spin can be polarized along or against the applied magnetic field,…

介观与纳米尺度物理 · 物理学 2009-10-31 G. Salis , D. T. Fuchs , J. M. Kikkawa , D. D. Awschalom , Y. Ohno , H. Ohno

We report the first demonstration of a direct interaction between the extraordinary transverse spin angular momentum in evanescent waves and the intrinsic orbital angular momentum in optical vortex beams. By tapping the evanescent wave of…

光学 · 物理学 2018-05-09 Zengkai Shao , Jiangbo Zhu , Yujie Chen , Yanfeng Zhang , Siyuan Yu

We obtain explicit expressions for the correlation functions of transmission and reflection coefficients of coherent electronic waves propagating through a disordered quasi-one-dimensional medium with purely elastic diffusive scattering in…

凝聚态物理 · 物理学 2009-10-22 A. M. S. Macedo

We investigate electron momentum distributions from single ionization of Ar by two orthogonally polarized laser pulses of different color. The two-color scheme is used to experimentally control the interference between electron wave packets…

The polarization of conduction electron spins due to an electrical current is observed in strained nonmagnetic semiconductors using static and time-resolved Faraday rotation. The density, lifetime, and orientation rate of the…

介观与纳米尺度物理 · 物理学 2007-05-23 Y. Kato , R. C. Myers , A. C. Gossard , D. D. Awschalom

The phase perturbation arising from spin-rotation coupling is developed as a natural extension of the celebrated Sagnac effect. Experimental evidence in support of this phase shift, however, has yet to be realized due to the exceptional…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Bahram Mashhoon , Richard Neutze , Mark Hannam , Geoffrey E. Stedman