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相关论文: Magnetic Bubble Domain Blowing with Electric Probe

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Unidirectional motion of magnetic domain walls is the key concept underlying next-generation domain-wall-mediated memory and logic devices. Such motion has been achieved either by injecting large electric currents into nanowires or by…

We construct a new 2-parameter family of static topological solitons in 5D minimal supergravity which are endowed with magnetic charge and mass. The solitons are asymptotically ${\mathbb R}^4\times S^1$, where the radius of the $S^1$ has a…

高能物理 - 理论 · 物理学 2015-05-28 Sean Stotyn , Robert B. Mann

The nucleation and evolution of bubbles are investigated in the model of an $O(3)$-symmetric scalar field coupled to gravity in the high temperature limit. It is shown that, in addition to the well-known bubble of which the inside region is…

广义相对论与量子宇宙学 · 物理学 2009-10-28 Yoonbai Kim , Kei-ichi Maeda , Nobuyuki Sakai

High spatial resolution X-ray photo-emission electron microscopy technique has been used to study the influence of the dipolar coupling taking place between the NiFe and the Co ferromagnetic electrodes of micron sized, elliptical shaped…

Weak first-order phase transitions proceed with percolation of new phase. The kinematics of this process is clarified from the point of view of subcritical bubbles. We examine the effect of small subcritical bubbles around a large domain of…

高能物理 - 理论 · 物理学 2009-10-30 Tetsuya Shiromizu , Masahiro Morikawa

The successful realization of skyrmion-based spintronic devices depends on the easy manipulation of underlying magnetic interactions in the skyrmion-hosting materials. Although the mechanism of skyrmion formation in non-centrosymmetric…

材料科学 · 物理学 2022-07-28 Dola Chakrabartty , Sk Jamaluddin , Subhendu K. Manna , Ajaya K. Nayak

We theoretically study equilibrium and dynamic properties of nanosized magnetic skyrmions in thin magnetic films with broken inversion symmetry, where electric field couples to magnetization via spin-orbit coupling. Based on a…

介观与纳米尺度物理 · 物理学 2015-10-21 Pramey Upadhyaya , Guoqiang Yu , Pedram Khalili Amiri , Kang L. Wang

Magnetic skyrmions are nontrivial spin textures which resist external perturbations, being promising candidates for the next generation recording devices. Nevertheless, a major challenge in realizing skyrmion-based devices is the…

We study the dynamics of skyrmions in chiral magnets in the presence of a spin polarized current. The motion of skyrmions in the ferromagnetic background excites spin waves and contributes to additional damping. At a large current, the spin…

强关联电子 · 物理学 2013-05-15 Shi-Zeng Lin , Charles Reichhardt , Cristian D. Batista , Avadh Saxena

We study the dynamics of axions at first-order phase transitions in non-Abelian gauge theories. When the duration of the phase transition is short compared to the timescale of the axion oscillations, the axion dynamics is similar to the…

高能物理 - 唯象学 · 物理学 2024-03-19 Junseok Lee , Kai Murai , Fuminobu Takahashi , Wen Yin

We clarify the conditions for the emergence of multiple-${\bf Q}$ structures out of lattice and easy-axis spin anisotropy in frustrated magnets. By considering magnets whose exchange interaction has multiple global minima in momentum space,…

介观与纳米尺度物理 · 物理学 2016-05-16 Satoru Hayami , Shi-Zeng Lin , Cristian D. Batista

The creation and manipulation of magnetic skyrmions in magnetic bilayer heterostructures via spin-orbit torque have been intensively studied in spintronics because of their potential application as information carriers in next-generation…

介观与纳米尺度物理 · 物理学 2025-05-09 Yuto Uwabo , Masahito Mochizuki

We investigate the scattering of fermions off domain walls at the electroweak phase transition in presence of a magnetic field. We consider both the bubble wall and the kink domain wall. We derive and solve the Dirac equation for fermions…

天体物理学 · 物理学 2011-07-19 P. Cea , G. L. Fogli , L. Tedesco

Topological superconductors are associated with the appearance of Majorana bound states, with promising applications in topologically protected quantum computing. In this Letter, we study a system where a skyrmion crystal is interfaced with…

超导电性 · 物理学 2023-04-14 Kristian Mæland , Asle Sudbø

We have performed an experimental and modeling-based study of the spin-orbit torque-induced growth of magnetic stripe domains in heavy metal/ferromagnet thin-film heterostructures that possess chiral N\'eel-type domain walls due to an…

介观与纳米尺度物理 · 物理学 2023-05-04 Jeffrey A. Brock , Daan Swinkels , Bert Koopmans , Eric E. Fullerton

In the present research, we demonstrate the usage of plasmonic effects in thin film structures to control magnetic topological textures, specifically skyrmions and skyrmioniums. We investigate numerically the generation and alteration of…

应用物理 · 物理学 2024-03-13 W. Al Saidi , R. Sbiaa , Y. Dusch , N. Tiercelin

Magnetic skyrmion motion induced by an electric current has drawn much interest because of its application potential in next-generation magnetic memory devices. Recently, unidirectional skyrmion motion driven by an oscillating magnetic…

We consider the formation of a ring-like magnetic field in collisions of bubbles of broken phase in an abelian Higgs model. Particular attention is paid on multiple collisions. The small collision velocity limit, appropriate to the…

高能物理 - 唯象学 · 物理学 2009-12-30 Jarkko Ahonen , Kari Enqvist

We numerically demonstrate an ultrafast method to create $\textit{single}$ skyrmions in a $\textit{collinear}$ ferromagnetic sample by applying a picosecond (effective) magnetic field pulse in the presence of Dzyaloshinskii-Moriya…

介观与纳米尺度物理 · 物理学 2017-12-01 Vegard Flovik , Alireza Qaiumzadeh , Ashis K. Nandy , Changhoon Heo , Theo Rasing

When a horizontal resistive wire is heated up to the boiling point in a subcooled liquid bath, some vapor bubbles nucleate on its surface. Traditional nucleate boiling theory predicts that bubbles generated from active nucleate sites, grow…

流体动力学 · 物理学 2017-08-02 Alexis Duchesne , Hervé Caps