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Related papers: Magnetization dynamics in a three-dimensional inte…

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Magnetic-domain structure and dynamics play an important role in understanding and controlling the magnetic properties of two-dimensional magnets, which are of interest to both fundamental studies and applications[1-5]. However, the probe…

We demonstrate a strong dependence of the effective damping on the nanomagnet size and the particular spin-wave mode that can be explained by the theory of intralayer transverse-spin-pumping. The effective Landau-Lifshitz damping is…

Mesoscale and Nanoscale Physics · Physics 2013-03-15 Hans T. Nembach , Justin M. Shaw , Carl T. Boone , T. J. Silva

We investigate the magnetic thermal noise in magnetic nanowires with and without a domain wall by employing micromagnetic simulations. The magnetic thermal noise due to random thermal fluctuation fields gives important physical quantities…

Materials Science · Physics 2015-05-19 Jungbum Yoon , Chun-Yeol You , Younghun Jo , Seung-Young Park , Myung-Hwa Jung

In this work we investigate the emergence of the localization regime for diffusion in various geometries: inside slabs, inside cylinders and around rods arranged on a square array. At high gradients, the transverse magnetization is strongly…

Medical Physics · Physics 2019-11-05 Nicolas Moutal , Kerstin Demberg , Denis Grebenkov , Tristan Anselm Kuder

We consider the different structures that a magnetic nanowire adsorbed on a surface may adopt under the influence of external magnetic or electric fields. First, we propose a theoretical framework based on an Ising-like extension of the 1D…

Hybrid elastic and spin waves hold promises for energy-efficient and versatile generation and detection of magnetic signals, with potentially long coherence times. Here we report on the combined elastic and magnetic dynamics in a…

Mesoscale and Nanoscale Physics · Physics 2024-06-26 P. Carrara , M. Brioschi , R. Silvani , A. O. Adeyeye , G. Panaccione , G. Gubbiotti , G. Rossi , R. Cucini

We consider the three-dimensional magnetohydrodynamics system forced by noise that is white in both time and space. Its complexity due to four non-linear terms makes its analysis very intricate. Nevertheless, taking advantage of its…

Analysis of PDEs · Mathematics 2023-03-13 Kazuo Yamazaki

Supramolecular chemistry has allowed the production, by self-assembly, of inorganic complexes with a [N x N] square matrix-like configuration of N^2 metal centers. Interest in these systems is driven by the potential applications in…

Strongly Correlated Electrons · Physics 2007-05-23 O. Waldmann

In nanocomposite magnetic materials the exchange coupling between phases plays a central role in the determination of the extrinsic magnetic properties of the material: coercive field, remanence magnetization. Exchange coupling is therefore…

Materials Science · Physics 2013-03-12 V. Russier , K. Younsi , L. Bessais

We demonstrate theoretically a strong local enhancement of the intensity of the in-plane microwave magnetic field in multilayered structures made from a magneto-insulating yttrium iron garnet (YIG) layer sandwiched between two non-magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Ivan S. Maksymov , Jessica Hutomo , Donghee Nam , Mikhail Kostylev

The increasing need to store large amounts of information with an ultra-dense, reliable, low power and low cost memory device is driving aggressive efforts to improve upon current perpendicular magnetic recording technology. However, the…

Mesoscale and Nanoscale Physics · Physics 2019-01-09 Ozhan Ozatay , Aisha Gokce , Thomas Hauet , Liesl Folks , Anna Giordano , Giovanni Finocchio

Magnetic materials host a wealth of nonlinear dynamics, textures, and topological defects. This is possible due to the competition between strong nonlinearity and dispersion that act at the atomic scale as well as long-range interactions.…

Mesoscale and Nanoscale Physics · Physics 2024-07-02 Kyle Rockwell , Joel Hirst , Thomas A. Ostler , Ezio Iacocca

The research on the properties of spin waves (SWs) in three-dimensional nanosystems is an innovative idea in the field of magnonics. Mastering and understanding the nature of magnetization dynamics and binding of SWs at surfaces, edges, and…

Mesoscale and Nanoscale Physics · Physics 2023-08-29 Mateusz Gołębiewski , Hanna Reshetniak , Uladzislau Makartsou , Maciej Krawczyk , Arjen van den Berg , Sam Ladak , Anjan Barman

Artificial spin ices are periodic arrangements of interacting nanomagnets successfully used to investigate emergent phenomena in the presence of geometric frustration. Recently, it has been shown that artificial spin ices can be used as…

Mesoscale and Nanoscale Physics · Physics 2021-04-07 Susmita Saha , Jingyuan Zhou , Kevin Hofhuis , Attila Kákay , Valerio Scagnoli , Laura J. Heyderman , Sebastian Gliga

We investigate the current induced magnetization dynamics and magnetization switching in an unconventional p-wave superconductor sandwiched between two misaligned ferromagnetic layers by numerically solving Landau-Lifshitz-Gilbert equation…

Superconductivity · Physics 2019-10-15 Saumen Acharjee , Umananda Dev Goswami

In this work we discuss the use of interferometric measurement technique to study microwave magnetization dynamics on ferromagnetic nanostructures. We demonstrate that in this way one can resolve features which are impossible to resolve…

Mesoscale and Nanoscale Physics · Physics 2014-02-17 Eugene N. Ivanov , Mikhail Kostylev

Ferrofluids, composed of magnetic nanoparticles suspended in a non-magnetic carrier liquid, have attracted considerable attention since their discovery in the 1960s. Their combination of liquid and magnetic properties gives rise to complex…

We theoretically describe a mechanism of low-field linear magnetoconductivity in helical magnetic metals. Two ingredients for the mechanism in three-dimensional metals are identified to be the spin-orbit coupling and momentum-dependent…

Mesoscale and Nanoscale Physics · Physics 2022-09-28 Vladimir A. Zyuzin

Mechanical resonator networks are currently discussed in the context of model systems giving insight into problems of condensed matter physics including effects in topological phases. Here, we discuss networks based on three high-quality…

Mesoscale and Nanoscale Physics · Physics 2020-11-17 Daniel Schwienbacher , Thomas Luschmann , Rudolf Gross , Hans Huebl

Ferromagnetic materials have been utilised as recording media within data storage devices for many decades. Confinement of the material to a two dimensional plane is a significant bottleneck in achieving ultra-high recording densities and…