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Transverse spin of surface waves is a universal phenomenon which has recently attracted significant attention in optics and acoustics. It appears in gravity water waves, surface plasmon-polaritons, surface acoustic waves, and exhibits…

Imprinting magnetism into graphene makes an important step to its applications in spintronics. An actively explored approach is proximity coupling of graphene to a 2D magnet. In these endeavors, the use of epitaxial graphene may bring…

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

It has been a long-standing goal to create magnetism in a nonmagnetic material by manipulating its structure at the nanometer scale. This idea may be realized in graphitic carbon: evidence suggests magnetic states at the edges of graphene…

Materials Science · Physics 2010-09-01 Steven C. Erwin , Franz J. Himpsel

Terahertz emission spectroscopy of ultrathin multilayers of magnetic and heavy metals has recently attracted much interest. This method not only provides fundamental insights into photoinduced spin transport and spin-orbit interaction at…

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

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…

Applied Physics · Physics 2020-07-29 Morteza Mohseni , Burkard Hillebrands , Philipp Pirro , Mikhail Kostylev

Coherent manipulation of magnetism through the lattice provides unprecedented opportunities for controlling spintronic functionalities on the ultrafast timescale. Such nonthermal control conventionally involves nonlinear excitation of…

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

Spin waves propagating in magnetic materials exhibit nonlinear behavior at large amplitudes due to the competition between excitation and relaxation, providing an attractive platform for exploring nonlinear wave dynamics. In particular,…

The capability of magnons to hybridize and strongly couple with diverse excitations offers a promising avenue for realizing and controlling emergent properties that hold significant potential for applications in devices, circuits, and…

Materials Science · Physics 2024-02-22 D. -Q. To , A. Rai , J. M. O. Zide , S. Law , J. Q. Xiao , M. B. Jungfleisch , M. F. Doty

Nanoscale inhomogeneities and impurity clustering are often found to drastically affect the magnetic and transport properties in disordered/diluted systems, giving rise to rich and complex phenomena. However, the physics of these systems…

Disordered Systems and Neural Networks · Physics 2014-03-10 Akash Chakraborty , Paul Wenk , Stefan Kettemann , Richard Bouzerar , Georges Bouzerar

The calculations of the inelastic spin wave scattering by flexure vibrations of the Bloch domain wall (Winters magnons) in thin magnetic films are presented. The approach is based on the interaction of the propagating spin waves with the…

Mesoscale and Nanoscale Physics · Physics 2019-04-02 N. N. Dadoenkova , Y. S. Dadoenkova , I. L. Lyubchanskii , M. Krawczyk , K. Y. Guslienko

Ferro- and ferrimagnets play host to small-signal, microwave-frequency magnetic excitations called spin waves, the quanta of which are known as magnons. Over the last decade, the field of spin-wave dynamics has contributed much to our…

Mesoscale and Nanoscale Physics · Physics 2015-02-24 Alexy D. Karenowska , Andrew D. Patterson , Michael J. Peterer , Einar B. Magnússon , Peter J. Leek

In this work, the area and edges spin wave calculations were carried out using the Heisenberg Hamiltonian and the tridiagonal method for the 2D ferromagnetic square lattice stripe, where the SW modes are characterized by a 1D in-plane wave…

Mesoscale and Nanoscale Physics · Physics 2011-10-21 Maher Z. Ahmed

We have previously found experimental evidence for several quantum phenomena in oxygen-ion implanted of hydrogenated graphite: ferromagnetism, antiferromagnetism, paramagentism, triplet superconductivity, Andreev states, Little-Parks…

Superconductivity · Physics 2023-11-23 Nadina Gheorghiu , Charles R. Ebbing , Timothy J. Haugan

We study collective excitations in a helical electron liquid on a surface of three-dimensional topological insulator. Electron in helical liquid obeys Dirac-like equation for massless particless and direction of its spin is strictly…

Mesoscale and Nanoscale Physics · Physics 2012-07-10 D. K. Efimkin , Yu. E. Lozovik , A. A. Sokolik

Spin Hall magnetoresistance (SMR) refers to a resistance change in a metallic film reflecting the magnetization direction of a magnet attached to the film. The mechanism of this phenomenon is spin exchange between conduction-electron spins…

We study low energy collective modes and transport properties of the "helical metal" on the surface of a topological insulator. At low energies, electrical transport and spin dynamics at the surface are exactly related by an operator…

Mesoscale and Nanoscale Physics · Physics 2010-10-19 S. Raghu , Suk Bum Chung , Xiao-Liang Qi , Shou-Cheng Zhang

The formation of periodic wrinkles in soft layered materials due to mechanical instabilities is prevalent in nature and has been proposed for use in multiple applications. However, such phenomena have been explored predominantly in…