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We demonstrate that electron wave functions change their dimensionality at some commensurate directions of a magnetic field in conductors with open [quasi-one-dimensional (Q1D)] sheets of Fermi surface. These 1D -> 2D dimensional crossovers…

Superconductivity · Physics 2009-11-10 A. G. Lebed , Heon-Ick Ha , M. J. Naughton

We have used time-resolved scanning Kerr microscopy (TRSKM) and micromagnetic simulations to demonstrate that, when driven by spatially uniform microwave field, the edges of patterned magnetic samples represent both efficient and highly…

Materials Science · Physics 2017-08-02 F. B. Mushenok , R. Dost , C. S. Davies , D. A. Allwood , B. J. Inkson , G. Hrkac , V. V. Kruglyak

We show that an unpolarized electric current incident perpendicular to the plane of a thin ferromagnet can excite a spin-wave instability transverse to the current direction if source and drain contacts are not symmetric. The instability,…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. L. Polianski , P. W. Brouwer

We describe novel physics of nonlinear magnetoinductive waves in left-handed composite metamaterials. We derive the coupled equations for describing the propagation of magnetoinductive waves, and show that in the nonlinear regime the…

Materials Science · Physics 2007-05-23 Ilya V. Shadrivov , Alexander A. Zharov , Nina A. Zharova , Yuri S. Kivshar

The transmission of a dipole-dominated spin wave in a ferromagnetic film through a localised inhomogeneity in the form of a magnetic field produced by a dc current through a wire placed on the film surface was studied experimentally and…

Materials Science · Physics 2009-03-05 M. P. Kostylev , A. A. Serga , T. Schneider , B. Leven , B. Hillebrands , R. L. Stamps

Magnetoelastic coupling mediated by magnetic dipolar interactions is theoretically investigated in ferromagnetic thin films under an in-plane magnetic field. We develop a theoretical description that incorporates dipolar fields derived from…

An asymptotically exact theory of spectrum and transverse distribution of magnetization in long-wave magnons is presented. It is based on exact analytical solution of linearized Landau-Lifshitz equation in a film. The quantization of the…

Mesoscale and Nanoscale Physics · Physics 2018-08-08 Gang Li , Chen Sun , Thomas Nattermann , Valery L. Pokrovsky

Asteroseismology has reached a level of accuracy that may allow us to detect the effect of a deep magnetic field on oscillation modes. We thus aim to develop an asymptotic theory for short-wavelength waves in radiative zones of rotating…

Solar and Stellar Astrophysics · Physics 2018-10-15 Aurélien Valade , Vincent Prat , Stéphane Mathis , Kyle Augustson

Analytical expressions for the dispersion relations and polarizations of low-frequency waves in magnetized plasmas based on two-fluid model are obtained. The properties of waves propagating at different angles (to the ambient magnetic field…

Plasma Physics · Physics 2015-05-29 Jinsong Zhao

The problem of radio wave reflection from an optically thick plane monotonous layer of magnetized plasma is considered at present work. The plasma electron density irregularities are described by spatial spectrum of an arbitrary form. The…

Plasma Physics · Physics 2009-10-31 N. A. Zabotin , A. G. Bronin , G. A. Zhbankov

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

We have investigated the directional dichroism of magnetic resonance spectra in the polar ferromagnet GaV$_4$S$_8$. While four types of structural domains are energetically degenerated under zero field, the magnetic resonance for each…

Strongly Correlated Electrons · Physics 2021-01-08 Y. Okamura , S. Seki , S. Bordács , Á. Butykai , V. Tsurkan , I. Kézsmárki , Y. Tokura

The possibility of generation of stable self-focusing beams in in-plane magnetized thin magnetic films is considered and theoretical conditions for the existence of such localized solutions are discussed. It is shown that for the definite…

Other Condensed Matter · Physics 2009-11-10 Ramaz Khomeriki

Parametric oscillation occurs when the resonance frequency of an oscillator is periodically modulated. Owing to time-reversal symmetry breaking in magnets, nonreciprocal magnons can be parametrically excited when spatial-inversion symmetry…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 Sohei Horibe , Hiroki Shimizu , Koujiro Hoshi , Takahiko Makiuchi , Tomosato Hioki , Eiji Saitoh

Thermal effects on the properties of four electromagnetic waves propagating in the pulsar magnetosphere are analyzed. It is shown that thermal effects change only quantitatively the dispersion properties of superluminal ordinary O-mode…

High Energy Astrophysical Phenomena · Physics 2019-12-10 A. G. Mikhaylenko , V. S. Beskin , Ya. N. Istomin

The accretion disk around a rotating magnetic star (neutron star, white dwarf or T Tauri star) is subjected to periodic vertical magnetic forces from the star, with the forcing frequency equal to the stellar spin frequency or twice the spin…

Astrophysics · Physics 2009-11-13 Dong Lai , Hang Zhang

We investigate the wave propagation in the anisotropic metamaterial with single-sheeted hyperboloid dispersion relation. Based on boundary conditions and dispersion relations, we find that the opposite amphoteric refraction, such that E-…

Optics · Physics 2007-05-23 Hailu Luo , Zhongzhou Ren , Weixing Shu , Fei Li

Drift wave is a prominent mode of a magnetized plasma of inhomogeneous density. It plays an important role in the transport of particles, energy and momentum perpendicular to the ambient magnetic field. The frequency of this mode is…

Plasma Physics · Physics 2019-03-07 Atul Kumar , Amita Das , Predhiman Kaw

We investigate the propagation of electromagnetic waves through a static wormhole. It is shown that the problem can be reduced to a one-dimensional Schr\"odinger-like equation with a barrier-type potential. Using numerical methods, we…

General Relativity and Quantum Cosmology · Physics 2009-10-31 S. E. Perez Bergliaffa , K. E. Hibberd

In this overview paper, we investigate the dispersion of electromagnetic waves for dissipative and non-dissipative dielectric-magnetic uniaxial mediums. Changing the sign of one component of dielectric permittivity ({\epsilon}) or magnetic…

Optics · Physics 2017-03-01 Omid Khakpour , Seyed Mojtaba Rezaei Sani
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