中文
相关论文

相关论文: Spin-Torque Driven Magnetization Dynamics: Microma…

200 篇论文

We report the dynamic characterization of the spin-torque-driven in-plane precession modes of a spin-torque nano-oscillator based on two different synthetic ferrimagnets: a pinned one characterized by a strong RKKY interaction which is…

介观与纳米尺度物理 · 物理学 2024-03-07 E. Monteblanco , F. Garcia-Sanchez , M. Romera , D. Gusakova , L. D. Buda-Prejbeanu , U. Ebels

We present numerical simulation studies of the steady-state magnetization dynamics driven by a spin-polarized current in a point contact geometry for the case of a relatively large contact diameter (D = 80 nm) and small external field (H =…

介观与纳米尺度物理 · 物理学 2015-05-13 D. V. Berkov , N. L. Gorn

The spin-charge coupled dynamics in a thin, magnetized metallic system are investigated. The effective driving force acting on the charge carriers is generated by a dynamical magnetic texture, which can be induced, e.g., by a magnetic…

介观与纳米尺度物理 · 物理学 2017-03-06 Sebastian Tölle , Ulrich Eckern , Cosimo Gorini

In a nanomagnet (whose total spin S< 1000), very small polarized currents can lead to magnetic reversal. Treating on the same footing the transport and magnetic properties of a nanomagnet connected to magnetic leads via tunneling barriers,…

介观与纳米尺度物理 · 物理学 2009-11-10 X. Waintal , O. Parcollet

Magnetic Skyrmions belong to the most interesting spin structures for the development of future information technology as they have been predicted to be topologically protected. To quantify their stability, we use an innovative multiscale…

材料科学 · 物理学 2017-07-19 Andrea De Lucia , Kai Litzius , Benjamin Krüger , Oleg A. Tretiakov , Mathias Kläui

The field of spin hydrodynamics aims to describe magnetization dynamics from a fluid perspective. For ferromagnetic materials, there is an exact mapping between the Landau-Lifshitz equation and a set of dispersive hydrodynamic equations.…

介观与纳米尺度物理 · 物理学 2019-09-13 Ezio Iacocca , Mark A. Hoefer

We introduce the general formalism to describe spin torques induced by the supercurrents injected from the adjacent superconducting electrodes into the spin-textured ferromagnets. By considering the adiabatic limit for the equal-spin…

超导电性 · 物理学 2018-08-28 I. V. Bobkova , A. M. Bobkov , M. A. Silaev

This letter introduces a micromagnetic model able to characterize the magnetization dynamics in three terminal magnetic tunnel junctions, where the effects of spin-transfer torque and spin-orbit torque are taken into account. Our results…

材料科学 · 物理学 2015-06-18 R. Tomasello , M. Carpentieri , G. Finocchio

There is a storied scientific history in the role of mechanical instruments for the measurement of fundamental physical interactions. Among these include the detection of magnetic torques via a displacement of a compliant mechanical sensor…

介观与纳米尺度物理 · 物理学 2018-09-26 Joseph E. Losby , Vincent T. K. Sauer , Mark R. Freeman

We study the dynamics of a spin torque nano oscillator that consists of parallelly magnetized free and pinned layers by numerically solving the associated Landau-Lifshitz-Gilbert-Slonczewski equation in the presence of a field-like torque.…

介观与纳米尺度物理 · 物理学 2022-02-02 R. Arun , R. Gopal , V. K. Chandrasekar , M. Lakshmanan

The nature of spin wave modes excited by spin-polarized direct current in a spin-torque auto-oscillator based on a magnetic nanocontact was studied by a micromagnetic simulation in the case when the external bias magnetic field was rotated…

介观与纳米尺度物理 · 物理学 2009-11-13 G. Consolo , B. Azzerboni , L. Lopez-Diaz , G. Gerhart , E. Bankowski , V. Tiberkevich , A. N. Slavin

We consider various methods and techniques for measuring electron magnetization and susceptibility, which are used in experimental condensed matter physics. The list of considered methods for macroscopic measurements includes…

材料科学 · 物理学 2023-02-20 V. M. Pudalov

Effects of an incoming spin-polarized current on a magnetic moment are explored. We found that the spin torque occurs only when the incoming spin changes as a function of time inside of the magnetic film. This implies that some…

材料科学 · 物理学 2007-05-23 Wonkee Kim , F. Marsiglio

Recent developments in the magnetization dynamics in spin textures, particularly skyrmions, offer promising new directions for magnetic storage technologies and spintronics. Skyrmions, characterized by their topological protection and…

材料科学 · 物理学 2024-08-21 Satadeep Bhattacharjee , Seung-Cheol Lee

In this paper we show that the spin transfer torque can be described by a pseudo magnetic field, proportional to the magnetic moment of the itinerant electrons that enters the Landau-Lifshitz-Gilbert equation in the same way as other…

介观与纳米尺度物理 · 物理学 2008-11-24 Sayeef Salahuddin , Deepanjan Datta , Supriyo Datta

We theoretically investigate the supercurrent-induced magnetization dynamics of a two-dimensional lattice of ferromagnetically ordered spins placed on a conventional superconductor with broken spatial inversion symmetry and strong…

介观与纳米尺度物理 · 物理学 2016-06-29 Kjetil M. D. Hals

Thermally induced magnetization dynamics is currently a flourishing field of research due to its potential application in information technology. We study the paradigmatic system of a magnetic domain wall in a thermal gradient which is…

超导电性 · 物理学 2022-02-08 I. V. Bobkova , A. M. Bobkov , Wolfgang Belzig

The field of magnonics, which utilizes propagating spin waves for nano-scale transmission and processing of information, has been significantly advanced by the advent of the spin-orbit torque. The latter phenomenon can allow one to overcome…

介观与纳米尺度物理 · 物理学 2020-05-05 V. E. Demidov , S. Urazhdin , A. Anane , V. Cros , S. O. Demokritov

Current-induced magnetization dynamics in a trilayer structure composed of two ferromagnetic free layers and a nonmagnetic spacer is examined. Both free layers are treated as a monodomain magnetic body with an uniform agnetization. The…

材料科学 · 物理学 2009-11-11 Kiwamu Kudo , Rie Sato , Koichi Mizushima

The purpose of this article is to review the current status of a frontier in dynamic spintronics and contemporary magnetism, in which much progress has been made in the past decade, based on the creation of a variety of micro- and…

材料科学 · 物理学 2016-11-17 Michael Harder , Yongsheng Gui , Can-Ming Hu