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In a two-dimensional arrangement of closely spaced elliptical nanomagnets with in-plane magnetic anisotropy, whose major axes are aligned along columns and minor axes along rows, dipole coupling will make the magnetic ordering…

介观与纳米尺度物理 · 物理学 2019-08-05 Md Ahsanul Abeed , Supriyo Bandyopadhyay

Recent experimental and theoretical studies show that the switching behavior of magnetic nanoparticles can be well controlled by external time-dependent magnetic fields. In this work, we inspect theoretically the influence of the…

其他凝聚态物理 · 物理学 2013-09-18 Alexander Sukhov , Jamal Berakdar

Interfacing ion qubits in separate traps is among the challenges towards scaling up ion quantum computing. This theoretical study focuses on using a conducting wire to couple the motional quantum states of ions in separate planar traps.…

量子物理 · 物理学 2021-12-01 N. Van Horne , M. Mukherjee

We show results of Monte Carlo simulations of an array of monodispersed magnetic monodomain particles, in a square lattice with dipolar interactions and perpendicular uniaxial anisotropy. We first show the equilibrium phase diagram of the…

材料科学 · 物理学 2008-10-17 Daniel A Stariolo , Orlando V. Billoni

Kinetic equations for magnetic nano particles dispersed in a viscous liquid are developed and analyzed numerically. Depending on the amplitude of an applied oscillatory magnetic field the particles orient their time averaged anisotropy axis…

材料科学 · 物理学 2016-01-20 Klaus D. Usadel , Clemens Usadel

Nanomagnetism concerns the engineering of magnetic interactions in heterostructures that consist of layers of magnetic and non-magnetic materials. Mostly, these interactions are dominated by the minimization of energy. Here, we propose an…

介观与纳米尺度物理 · 物理学 2025-05-21 William Huddie , Laura Filion , Marjolein Dijkstra , Rembert Duine

Conventional and spin-related thermoelectric effects in electronic transport through a nanoscopic system exhibiting magnetic anisotropy $-$with both uniaxial and transverse components$-$ are studied theoretically in the linear response…

介观与纳米尺度物理 · 物理学 2015-11-13 Maciej Misiorny , Józef Barnaś

This work investigates the effects of time-varying media, where optical properties change over time, on electromagnetic wave propagation, focusing on plane waves and free-electron evanescent waves. We introduce a switching parameter,…

We compute the warping of a disc induced by an inclined dipole. We consider a magnetised star surrounded by a thin Keplerian diamagnetic disc with an inner edge that corotates with the star. We suppose the stellar field is a dipole with an…

天体物理学 · 物理学 2007-05-23 Caroline Terquem , John C. B. Papaloizou

Analytical solution has been found for the second-order effective anisotropy of magnetic nanoparticles of a cubic shape due to the surface anisotropy (SA) of the N\'eel type. Similarly to the spherical particles, for the simple cubic…

介观与纳米尺度物理 · 物理学 2018-09-12 D. A. Garanin

We investigate experimentally the influence of a background rotation on the energy transfers in decaying grid turbulence. The anisotropic energy flux density, ${\bf F} ({\bf r}) = < \delta {\bf u}\,(\delta {\bf u})^2 >$, where $\delta {\bf…

流体动力学 · 物理学 2012-05-22 Cyril Lamriben , Pierre-Philippe Cortet , Frédéric Moisy

A rich variety of physical effects in spin dynamics arises at the interface between different magnetic materials. Engineered systems with interlaced magnetic structures have been used to implement spin transistors, memories and other…

We study the interplay of the Kondo effect and spin-polarized tunneling in a class of systems exhibiting uniaxial magnetic anisotropy, such as magnetic molecules, magnetic adatoms, or quantum dots coupled to a single localized magnetic…

介观与纳米尺度物理 · 物理学 2012-06-06 Maciej Misiorny , Ireneusz Weymann , Jozef Barnas

The development of future spintronic applications requires a thorough and fundamental understanding of the magnetisation dynamics. Of particular interest are magnetic nanodisks, in which the vortex state emerges as a stable spin…

介观与纳米尺度物理 · 物理学 2022-04-06 Pieter Gypens , Jonathan Leliaert , Gisela Schütz , Bartel Van Waeyenberge

Understanding heat transfer across solid-liquid interfaces is central to thermal management and energy technologies, yet whether the interfacial thermal conductance (ITC) depends on the timescale of heating remains unclear. Here we use…

材料科学 · 物理学 2026-03-25 Tao Chen , Puqing Jiang

Two magnetic impurities on the edge of a zigzag graphene nanoribbon strongly interact with each other via indirect coupling, which can be mediated by conducting carriers. By means of Quantum Monte Carlo (QMC) simulations, we find that the…

强关联电子 · 物理学 2015-03-09 F. M. Hu , Liangzhi Kou , Thomas Frauenheim

The effects of the coupling between two electronic condensates in two-gap mesoscopic superconductors are studied within the Ginzburg-Landau theory using a finite difference technique. In applied magnetic field, we derive the dependency of…

超导电性 · 物理学 2015-03-17 R. Geurts , M. V. Milošević , F. M. Peeters

We explored the magnetic behavior of a common two-phase nanomagnetic system by Monte Carlo computer simulation of a modified Heisenberg model on a 3D complex lattice with single- and cluster-spins. The effect of exchange coupling between…

材料科学 · 物理学 2007-05-23 Y. Z. Shao , W. R. Zhong , G. M. Lin , X. D. Hu

This paper introduces a physically-intuitive notion of inter-area dynamics in systems comprising multiple interconnected energy conversion modules. The idea builds on an earlier general approach of setting their structural properties by…

系统与控制 · 电气工程与系统科学 2024-05-27 Hiya Akhil Gada , Marija D. Ilic

We focus on an in-depth study of the forced dynamics of a ferromagnetic single-domain uniaxial nanoparticle placed in a viscous fluid and driven by an external rotating magnetic field. The process of conversion of magnetic and mechanical…

介观与纳米尺度物理 · 物理学 2018-12-11 T. V. Lyutyy , O. M. Hryshko , M. Yu. Yakovenko