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Phenomena of rotation and oscillations of particle spin are discussed for particles rotating in storage ring. The fact that these effects are described by spin-dependent part of zero-angle scattering amplitude allows to use them for the…

高能物理 - 唯象学 · 物理学 2009-11-07 Vladimir G. Baryshevsky

A scroll wave in a very thin layer of excitable medium is similar to a spiral wave, but its behaviour is affected by the layer geometry. We identify the effect of sharp variations of the layer thickness, which is separate from filament…

斑图形成与孤子 · 物理学 2015-02-13 I. V. Biktasheva , H. Dierckx , V. N. Biktashev

A lattice of particles with dipolar magnetic moments is considered under the presence of quadratic Zeeman effect. Two types of this effect are taken into account, the effect due to an external nonresonant magnetic field and the effect…

其他凝聚态物理 · 物理学 2018-08-01 V. I. Yukalov , E. P. Yukalova

Multiband systems, which possess a wide parameter space, allow to explore a variety of competing ground states. Bright examples are the Fe-based pnictides and chalcogenides, which demonstrate metallic, superconducting, and various magnetic…

超导电性 · 物理学 2018-01-30 Maxim M. Korshunov

Thin elastic sheets supported on compliant media form wrinkles under lateral compression. Since the lateral pressure is coupled to the sheet's deformation, varying it periodically in time creates a parametric excitation. We study the…

软凝聚态物质 · 物理学 2021-06-25 Haim Diamant

Electromagnetic temporal boundaries, emerging when the constitutive parameters of a medium undergo abrupt temporal variations, have garnered significant interest for their role in facilitating unconventional wave phenomena and enabling…

Spin waves are ideal candidates for wave-based computing, but the construction of magnetic circuits is blocked by a lack of an efficient mechanism to excite long-running exchange spin waves with normalised amplitudes. Here, we solve the…

We theoretically demonstrate linear spin-wave nonreciprocity in a Ni80Fe20 nanostripe waveguide, based on interband magnonic transitions induced by a time-reversal and spatialinversion symmetry breaking magnetic field. An analytical…

介观与纳米尺度物理 · 物理学 2015-06-16 Kai Di , Hock Siah Lim , Vanessa Li Zhang , Ser Choon Ng , Meng Hau Kuok

We consider electronic current transport through a ballistic one-dimensional quantum wire connected to two ferromagnetic leads. We study the effects of the spin-dependence of interfacial phase shifts (SDIPS) acquired by electrons upon…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Cottet , T. Kontos , W. Belzig , C. Schonenberger , C. Bruder

We study how a population of spin waves can be characterized from the analysis of the electrical microwave noise delivered by an inductive antenna placed in its vicinity. The measurements are conducted on a synthetic antiferromagnetic thin…

材料科学 · 物理学 2024-12-19 T. Devolder , S. -M. Ngom , A. Mouhoub , J. Létang , J. -V. Kim , P. Crozat , J. -P. Adam , A. Solignac , C. Chappert

We develop a theory of spin noise in semiconductor nanowires considered as prospective elements for spintronics. In these structures spin-orbit coupling can be realized as a random function of coordinate correlated on the spatial scale of…

介观与纳米尺度物理 · 物理学 2013-05-29 M. M. Glazov , E. Ya. Sherman

Energy dissipation is studied for a hard magnetic tip that scans a soft magnetic substrate. The dynamics of the atomic moments are simulated by solving the Landau-Lifshitz-Gilbert (LLG) equation numerically. The local energy currents are…

其他凝聚态物理 · 物理学 2011-06-27 Martin P. Magiera , Lothar Brendel , Dietrich E. Wolf , Ulrich Nowak

We consider the magnetic response of a two-dimensional electron gas (2DEG) with a spin-orbit interaction to a long-wave-length electromagnetic excitation. We observe that the transverse electric field creates spin polarization perpendicular…

介观与纳米尺度物理 · 物理学 2007-05-23 Alexander Shnirman , Ivar Martin

A new current induced spin-torque transfer effect has been observed in a single ferromagnetic layer without resorting to multilayers. At a specific current density of one polarity injected from a point contact, abrupt resistance changes due…

凝聚态物理 · 物理学 2009-11-07 Y. Ji , C. L. Chien

The formation and properties of envelope dispersive shock wave (DSW) excitations from repulsive nonlinear waves in a magnetic film are studied. Experiments involve the excitation of a spin-wave step pulse in a low-loss magnetic…

介观与纳米尺度物理 · 物理学 2017-07-19 P. A. Praveen Janantha , Patrick Sprenger , Mark A. Hoefer , Mingzhong Wu

We calculate the dynamical spin structure factor of spin waves for weakly coupled stripes. At low energy, the spin wave cone intensity is strongly peaked on the inner branches. As energy is increased, there is a saddlepoint followed by a…

超导电性 · 物理学 2007-05-23 D. X. Yao , E. W. Carlson , D. K. Campbell

Vortices in a narrow superconducting strip with a square array of pinning sites are studied. The interactions of vortices with other vortices and with external sources (applied magnetic field and transport current) are calculated via a…

超导电性 · 物理学 2009-11-07 Clécio C. de Souza Silva , Leonardo R. E. Cabral , J. Albino Aguiar

Electrical generation of THz spin waves is theoretically explored in an antiferromangetic nanostrip via the current-induced spin-orbit torque. The analysis based on micromagnetic simulations clearly illustrates that the Neel-vector…

介观与纳米尺度物理 · 物理学 2019-06-14 Xinyi Xu , Yuriy G. Semenov , Ki Wook Kim

Magnetic zigzag edges of graphene are considered as a basis for novel spintronics devices despite the fact that no true long-range magnetic order is possible in one dimension. We study the transverse and longitudinal fluctuations of…

材料科学 · 物理学 2008-01-31 Oleg V. Yazyev , M. I. Katsnelson

This paper presents a theoretical description of the spin distributions of fragments from low-energy induced and spontaneous nuclear fission, expressed in an analytical form. The mechanism of pumping high spin values for deformed fission…