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An obstacle for spin-based quantum sensors is magnetic noise due to proximal spins. However, such a spin cluster surrounding the sensor can become an asset, if it can be controlled. Here, we polarize and readout a cluster of three nitrogen…

Quantum Physics · Physics 2016-09-07 Helena S. Knowles , Dhiren M. Kara , Mete Atatüre

In this article we report on micromagnetic simulations performed on a permalloy nanostructure in presence of a uniform thermal gradient. Our numerical simulations show that heat flow is an effective mean to compensate the damping, and that…

Mesoscale and Nanoscale Physics · Physics 2012-07-31 S. Borlenghi , M. Franchin , H. Fangohr , L. Bergqvist , a. Delin

Spin Coulomb drag (SCD) constitutes an intrinsic source of dissipation for spin currents in metals and semiconductors. We discuss the power loss due to SCD in potential spintronics devices and analyze in detail the associated damping of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 I. D'Amico , C. A. Ullrich

One recent breakthrough in the field of magnonics is the experimental realization of reconfigurable spin-wave nanochannels formed by magnetic domain wall with a width of $10-100$ nm [Wagner \emph{et al}., Nat. Nano. \textbf{11}, 432…

Mesoscale and Nanoscale Physics · Physics 2018-03-21 Beining Zhang , Zhenyu Wang , Yunshan Cao , Peng Yan , X. R. Wang

Entanglement can improve the measurement precision of quantum sensors beyond the shot noise limit. Neutral atoms, the basis of some of the most precise and accurate optical clocks and interferometers, do not naturally exhibit all-to-all…

We present a study of the spin properties of dense layers of near-surface nitrogen-vacancy (NV) centres in diamond created by nitrogen ion implantation. The optically detected magnetic resonance contrast and linewidth, spin coherence time,…

We investigate the interplay between spin currents and spin waves in nanofabricated Permalloy waveguides with geometrical constrictions. Using propagating spin-wave spectroscopy, micromagnetic simulations, and analytical modeling, we…

We report a simple theoretical derivation of the spectrum and damping of spin waves in a cylindrical periodically structured magnetic nanowire (cylindrical magnonic crystal) in the "effective medium" approximation. The dependence of the…

Materials Science · Physics 2007-05-23 V. V. Kruglyak , R. J. Hicken , A. N. Kuchko , V. Yu. Gorobets

Investigating wave propagation in fluid enables a variety of important applications in underwater communications, object detections and unmanned robot control. Conventionally, momentum and spin reveal fundamental physical properties about…

Applied Physics · Physics 2018-02-07 Yang Long , Jie Ren , Hong Chen

Ultrathin metallic ferromagnets on substrates with strong spin-orbit coupling can exhibit induced chiral interactions of the Dzyaloshinskii-Moriya (DM) form. For systems with perpendicular anisotropy, the presence of DM interactions has…

Materials Science · Physics 2014-06-17 Felipe Garcia-Sanchez , Pablo Borys , Arne Vansteenkiste , Joo-Von Kim , Robert L. Stamps

Spin and charge-current dynamics after ultrafast spin-polarized excitation in a normal metal are studied theoretically using a wave-diffusion theory. It is shown analytically how this macroscopic approach correctly describes the ballistic…

Materials Science · Physics 2011-11-22 Steffen Kaltenborn , Yao-Hui Zhu , Hans Christian Schneider

We study theoretically the spin transport in a nonmagnetic metal connected to ferromagnetic injector and detector electrodes. We derive a general expression for the spin accumulation signal which covers from the metallic to the tunneling…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 S. Takahashi , S. Maekawa

Spin waves are promising chargeless information carriers for the future, energetically efficient beyond-CMOS systems. Among many advantages there are the ease of achieving nonlinearity, the variety of possible interactions, and excitation…

Mesoscale and Nanoscale Physics · Physics 2022-03-22 Pawel Gruszecki , Konstantin Y. Guslienko , Igor L. Lyubchanskii , Maciej Krawczyk

Magnetic insulators are promising materials for the development of energy-efficient spintronics. Unlike metallic counterparts, the magnetic insulators are characterized by imaginary part of the interfacial spin mixing conductance as well in…

Mesoscale and Nanoscale Physics · Physics 2020-11-24 Kuntal Roy

We study the damping of perpendicular standing spin-waves (PSSWs) in ultrathin Fe films at frequencies up to 2.4 THz. The PSSWs are excited by optically generated ultrashort spin current pulses, and probed optically in the time domain.…

Mesoscale and Nanoscale Physics · Physics 2021-10-06 L. Brandt , R. Verba , N. Liebing , M. Ribow , I. Razdolski , V. Tyberkevych , A. Slavin , G. Woltersdorf , A. Melnikov

Recent observations of considerable spin polarization in photoemission from metal surfaces through monolayers of chiral molecules were followed by several efforts to rationalize the results as the effect of spin-orbit interaction that…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Joel Gersten , Kristen Kaasbjerg , Abraham Nitzan

A review of electronic properties of insulating-, boron- and phosphorus-doped diamond is given. The main goal is, to show data in a wider context, to reveal trends and limitations with respect to carrier mobilities, conductivities, p- and…

Materials Science · Physics 2020-05-11 Christoph E. Nebel

We use tunable dipolar-interactions between the spins of nitrogen-vacancy (NV) centers in diamond to rotate a diamond crystal. Specifically, we employ cross-relaxation between the electronic spin of pairs of NV centers in a trapped diamond…

Mesoscale and Nanoscale Physics · Physics 2021-09-22 C. Pellet-Mary , P. Huillery , M. Perdriat , G. Hétet

Intense spin-down flows allow one to reach high Rm in relatively small laboratory setups using moderate mass of liquid metals. The spin-down flow in toroidal channels was the first flow configuration used for studying dynamo effects in…

Fluid Dynamics · Physics 2017-09-26 Peter Frick , Irina Mizeva

Functional spintronic devices rely on spin-charge interconversion effects, such as the reciprocal processes of electric field-driven spin torque and magnetization dynamics-driven spin and charge flow. Both damping-like and field-like…

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