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The authors have investigated the contribution of the surface spin waves to spin pumping. A Pt/NiFe bilayer has been used for measuring spin waves and spin pumping signals simultaneously. The theoretical framework of spin pumping resulting…

Materials Science · Physics 2015-06-11 Sankha Subhra Mukherjee , Praveen Deorani , Jae Hyun Kwon , Hyunsoo Yang

The modulation of propagating spin-wave amplitude in Ni81Fe19 (Py) films, resulting from constructive and destructive interference of spin wave, has been demonstrated. Spin waves were excited and detected inductively using pulse inductive…

Materials Science · Physics 2015-06-11 Sankha Subhra Mukherjee , Jae Hyun Kwon , Mahdi Jamali , Masamitsu Hayashi , Hyunsoo Yang

Inertial effects in spin dynamics emerge on picosecond time scales, giving rise to nutational excitations at THz frequencies. Here, we describe a general framework for investigating the precessional and nutational excitations in any type of…

Mesoscale and Nanoscale Physics · Physics 2024-05-28 Mikhail Cherkasskii , Ritwik Mondal , Levente Rózsa

We present experimental observations of the interference of spin-wave modes propagating in opposite directions in micron-sized NiFe-waveguides. To monitor the local spin-wave intensity distribution and phase of the formed interference…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Philipp Pirro , Thomas Brächer , Katrin Vogt , Björn Obry , Helmut Schultheiss , Britta Leven , Burkard Hillebrands

The spin wave interference is studied in two dimensional Ising ferromagnet driven by two coherent spherical magnetic field waves by Monte Carlo simulation. The spin waves are found to propagate and interfere according to the classic rule of…

Statistical Mechanics · Physics 2017-07-19 Muktish Acharyya

Recent experimental work has demonstrated optical control of spin wave emission by tuning the shape of the optical pulse (Satoh et al.\ Nature Photonics, 6, 662 (2012)). We reproduce these results and extend the scope of the control by…

Mesoscale and Nanoscale Physics · Physics 2017-09-01 L. J. A. van Tilburg , F. J. Buijnsters , A. Fasolino , T. Rasing , M. I. Katsnelson

Spin waves have been studied experimentally and by simulations in 1000 nm side equilateral triangular Permalloy dots in the Buckle state (B, with in-plane field along the triangle base) and the Y state (Y, with in-plane field perpendicular…

Mesoscale and Nanoscale Physics · Physics 2014-06-30 A. Lara , V. Metlushko , M. Garcia-Hernandez , F. G. Aliev

We theoretically and numerically investigate spin waves that occur in systems of classical magnetic dipoles that are arranged at the vertices of a regular polygon and interact solely via their magnetic fields. There are certain limiting…

Other Condensed Matter · Physics 2017-04-05 H. -J. Schmidt , C. Schröder , M. Luban

In this study, we discuss the observation of spin wave interference generated by magnetic oscillators. We employ micromagnetic simulations for two coherent spin Hall nanowire oscillators positioned nearby, horizontally or vertically. The…

Mesoscale and Nanoscale Physics · Physics 2024-03-25 Mohammad Haidar

The influence of a non-magnetic metallic substrate on the spin wave excitations in ultrathin ferromagnetic overlayers is investigated for different crystalline orientations. We show that spin wave dumping in these systems occur due to the…

Condensed Matter · Physics 2009-10-31 L. H. M. Barbosa , A. T. Costa , J. Mathon , R. B. Muniz

Using an atomistic spin model, we have simulated spin wave injection and propagation into antiferromagnetic IrMn from an exchange coupled CoFe layer. The spectral characteristics of the exited spin waves have a complex beating behavior…

Materials Science · Physics 2020-08-10 Sarah Jenkins , Roy W. Chantrell , Richard F. L. Evans

Spin waves - the elementary excitations of magnetic materials - are prime candidate signal carriers for low dissipation information processing. Being able to image coherent spin-wave transport is crucial for developing interference-based…

We consider spin effects related to the random spin-orbit interaction in graphene. Such a random interaction can result from the presence of ripples and/or other inhomogeneities at the graphene surface. We show that the random spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 V. K. Dugaev , E. Ya. Sherman , J. Barnas

We investigated how the dynamics of a domain wall are affected by the presence of spin density waves in a ferromagnetic wire. Domain walls and other scattering centres can cause coherent spin density waves to propagate through a wire when a…

Mesoscale and Nanoscale Physics · Physics 2011-07-19 Nicholas Sedlmayr , Vitalii Dugaev , Jamal Berakdar

The authors have investigated the possibility of utilizing spin waves for inter- and intra-chip communications, and as logic elements using both simulations and experimental techniques. Through simulations it has been shown that the decay…

Materials Science · Physics 2013-01-24 Jae Hyun Kwon , Sankha Subhra Mukherjee , Praveen Deorani , Masamitsu Hayashi , Hyunsoo Yang

This Letter presents a theoretical analysis of propagation of spin waves in a superconducting ferromagnet. The surface impedance was calculated for the case when the magnetization is normal to the sample surface. We found the frequencies at…

Condensed Matter · Physics 2009-11-10 V. Braude , E. B. Sonin

Spin waves are collective perturbations in the orientation of the magnetic moments in magnetically ordered materials. Their rich phenomenology is intrinsically three-dimensional; however, the three-dimensional imaging of spin waves has so…

The interaction between the propagating spin waves and the current driven motion of a transverse domain wall in magnetic nanowires is studied by micromagnetic simulations. If the speed of domain walls due to current induced spin transfer…

Materials Science · Physics 2011-03-25 Mahdi Jamali , Hyunsoo Yang , Kyung-Jin Lee

The spin effects on electromagnetic waves in a strongly magnetized plasma with rare collisions is considered with the help of relativistic kinetic equations, which takes into account the electron spin dynamics in the selfconsistent electric…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. N. Oraevsky , V. B. Semikoz , A. S. Volokitin

Excitation of spin waves is considered in a superconducting ferromagnetic slab with the equilibrium magnetization both perpendicular and parallel to the surface. The surface impedance is calculated and its behavior near propagation…

Superconductivity · Physics 2009-11-11 V. Braude
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