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相关论文: Perturbation Theory for Propagating Magnetic Dropl…

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The propagation and controlled manipulation of strongly nonlinear, two-dimensional solitonic states in a thin, anisotropic ferromagnet are theoretically demonstrated. It has been recently proposed that spin-polarized currents in a…

斑图形成与孤子 · 物理学 2012-07-23 M. A. Hoefer , M. Sommacal , T. J. Silva

Droplet solitons are coherently precessing solitary waves that have been recently realized in thin ferromagnets with perpendicular anisotropy.In the strongly nonlinear regime, droplets can be well approximated by a slowly precessing,…

斑图形成与孤子 · 物理学 2013-11-12 Lake Bookman , Mark Hoefer

The magnetic droplet soliton is a large amplitude, coherently precessing wave state that exists in ferromagnetic thin films with perpendicular magnetic anisotropy. To effectively sustain a droplet, magnetic damping can be locally…

斑图形成与孤子 · 物理学 2019-07-10 Richard O. Moore , Mark A. Hoefer

Magnetic droplet solitons are dynamical magnetic textures that form due to an attractive interaction between spin waves in thin films with perpendicular magnetic anisotropy. Spin currents and the spin torques associated with these currents…

介观与纳米尺度物理 · 物理学 2020-09-10 Ferran Macià , Andrew D. Kent

The magnetic dissipative droplet is a strongly nonlinear wave structure that can be stabilized in a thin film ferromagnet exhibiting perpendicular magnetic anisotropy by use of spin transfer torque. These structures have been observed…

介观与纳米尺度物理 · 物理学 2016-04-12 P. Wills , E. Iacocca , M. A. Hoefer

The interaction behavior of solitons are defining characteristics of these nonlinear, coherent structures. Due to recent experimental observations, thin ferromagnetic films offer a promising medium in which to study the scattering…

介观与纳米尺度物理 · 物理学 2014-07-18 M. D. Maiden , L. D. Bookman , M. A. Hoefer

Magnetic droplets are nanoscale, non-topological, dynamical solitons that can be nucleated in different spintronic devices, such as spin torque nano-oscillators (STNOs) and spin Hall nano-oscillators (SHNOs). This chapter first briefly…

介观与纳米尺度物理 · 物理学 2024-11-12 Martina Ahlberg , Sheng Jiang , Roman Khymyn , Sunjae Chung , Johan Åkerman

Magnetic droplets are dynamical solitons that can be generated by locally suppressing the dynamical damping in magnetic films with perpendicular anisotropy. To date, droplets have been observed only in nanocontact spin-torque oscillators…

介观与纳米尺度物理 · 物理学 2017-12-18 B. Divinskiy , S. Urazhdin , V. E. Demidov , A. Kozhanov , A. P. Nosov , A. B. Rinkevich , S. O. Demokritov

Magnetic thin films with perpendicular magnetic anisotropy (PMA) have localized excitations that correspond to reversed dynamically precessing magnetic moments, known as magnetic droplet solitons. Fundamentally, these excitations are…

材料科学 · 物理学 2015-04-08 Ferran Macià , Dirk Backes , Andrew D. Kent

Magnetic droplet solitons are non-linear dynamical modes that can be excited in a thin film with perpendicular magnetic anisotropy with a spin-transfer-torque. Although droplet solitons have been proved to be stable with a hysteretic…

介观与纳米尺度物理 · 物理学 2015-12-09 Sergi Lendínez , Nahuel Statuto , Dirk Backes , Andrew D. Kent , Ferran Macià

Magnetic droplets are dissipative magnetodynamical solitons that can form under current driven nanocontacts in magnetic layers with large perpendicular magnetic anisotropy. Here, we extend the original droplet theory by studying the impact…

应用物理 · 物理学 2021-01-27 H. F. Yazdi , G. Ghasemi , Majid Mohseni , Morteza Mohseni

A novel type of solitary wave is predicted to form in spin torque oscillators when the free layer has a sufficiently large perpendicular anisotropy. In this structure, which is a dissipative version of the conservative droplet soliton…

材料科学 · 物理学 2010-09-01 M. A. Hoefer , T. J. Silva , Mark W. Keller

Magnetic droplets are strongly nonlinear and localized spin-wave solitons that can be formed in current-driven nanocontacts. Here, we propose a simple way to launch droplets in an inhomogeneous nanoscopic waveguide. We use the drift motion…

介观与纳米尺度物理 · 物理学 2020-02-18 Morteza Mohseni , Qi Wang , Majid Mohseni , Thomas Brächer , Burkard Hillebrands , Philipp Pirro

Ubiquitous nonlinear waves in dispersive media include localized solitons and extended hydrodynamic states such as dispersive shock waves. Despite their physical prominence and the development of thorough theoretical and experimental…

斑图形成与孤子 · 物理学 2018-04-11 Michelle D. Maiden , Dalton V. Anderson , Nevil A. Franco , Gennady A. El , Mark A. Hoefer

Magnetic droplet soliton is a localized dynamic spin state which can serve as a nanoscale information carrier and nonlinear oscillator. The present opinion is that the formation of droplet solitons requires the compensation of magnetic…

材料科学 · 物理学 2022-09-07 Andrei I. Nikitchenko , Nikolay A. Pertsev

Magnetic droplets are non-topological dynamical solitons that can be nucleated and sustained in nano-contact based spin torque nano-oscillators (NC-STNOs) with perpendicular anisotropy free layers. While originally predicted in…

Magnetic dissipative droplets are localized, strongly nonlinear dynamical modes excited in nano-contact spin valves with perpendicular magnetic anisotropy. These modes find potential application in nanoscale structures for magnetic storage…

介观与纳米尺度物理 · 物理学 2015-06-17 Ezio Iacocca , Randy K. Dumas , Lake Bookman , Majid Mohseni , Sunjae Chung , Mark A. Hoefer , Johan Åkerman

A three dimensional small deformation theory is developed to examine the motion of a magnetic droplet in a uniform rotating magnetic field. The equations describing the droplet's shape evolution are derived using two different approaches -…

流体动力学 · 物理学 2022-05-20 Andris P. Stikuts , Régine Perzynski , Andrejs Cēbers

Magnetic solitons are nonlinear, local excitations in magnetic systems. In this study, we theoretically and numerically investigate the properties and generation of one-dimensional (1D) topologically trivial magnetic solitons in…

介观与纳米尺度物理 · 物理学 2026-04-21 Kai-Tao Huang , X. S. Wang

We demonstrate that a spin current flowing through a nano-contact into a uniaxial antiferromagnet with first- and second-order anisotropy can excite a self-localized dynamic magnetic soliton, known as a spin-wave droplet in ferromagnets.…

介观与纳米尺度物理 · 物理学 2024-06-14 Roman V. Ovcharov , Mohammad Hamdi , Boris A. Ivanov , Johan Åkerman , Roman S. Khymyn
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