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Related papers: Electrodynamics in Skyrmions Merging

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The coupling of conduction electrons and magnetic textures leads to quantum transport phenomena described by the language of emergent electromagnetic fields [1-3]. For magnetic skyrmions, spin-swirling particle-like objects, an emergent…

Magnetic skyrmions are vortex-like, swirls of magnetisation whose topological protection and particle-like nature have suggested them to be suitable for a number of novel spintronic devices. One such application is skyrmionic computing,…

We investigate the impact of the local spin texture on the differential conductance by scanning tunneling microscopy. In the focus is the previously found non-collinear magnetoresistance, which originates from spin mixing effects upon…

Materials Science · Physics 2017-04-05 André Kubetzka , Christian Hanneken , Roland Wiesendanger , Kirsten von Bergmann

Spontaneous symmetry breaking plays a pivotal role in many areas of physics, engendering a variety of excitations from sound modes in solids to pions in nuclear physics. Equally important excitations are solitons, nonlinear configurations…

Strongly Correlated Electrons · Physics 2021-05-13 Eslam Khalaf , Shubhayu Chatterjee , Nick Bultinck , Michael P. Zaletel , Ashvin Vishwanath

We investigate the torque field and skyrmion movement at an interface between a ferromagnet hosting a skyrmion and a material with strong spin-orbit interaction. We analyze both semiconductor materials and topological insulators using a…

Mesoscale and Nanoscale Physics · Physics 2022-08-08 Javier Osca , Bart Sorée

We show that the interplay between spin-orbit coupling (SOC) and the paramagnetic response of itinerant electrons in proximitized superconductor/paramagnet systems gives rise to the inverse spin galvanic effect, i.e. generation of magnetic…

Superconductivity · Physics 2024-06-25 S. V. Mironov , A. S. Mel'nikov , A. I. Buzdin

The anti-symmetric and anisotropic symmetric exchange interactions between two magnetic dipole moments - responsible for intriguing magnetic textures (e.g., magnetic skyrmions) - have been discovered since last century, while their electric…

Materials Science · Physics 2024-04-19 Longju Yu , Hong Jian Zhao , Peng Chen , Laurent Bellaiche , Yanming Ma

We introduce a topologically distinct skyrmion, termed a spin-flux skyrmion, which shares the same real-space magnetization profile as a conventional skyrmion but differs fundamentally in its underlying topological structure. This…

Mesoscale and Nanoscale Physics · Physics 2025-11-25 Sandip Bera , Sajeev John

In a magnetic multilayer, magnetizations can be manipulated by spin transfer torque. Both spin transfer torque and its reciprocal effect, spin pumping, are governed by spin mixing conductance. The magnitude of spin mixing conductance at the…

Mesoscale and Nanoscale Physics · Physics 2021-12-15 Adam B. Cahaya , Muhammad Aziz Majidi

Magnetic skyrmions are topological spin textures promising for future high-density and nonvolatile memory. It is crucial to understand the current-driven skyrmion dynamics in the presence of deformation, of which an analytical model,…

Mesoscale and Nanoscale Physics · Physics 2022-01-13 Zehan Chen , Xichao Zhang , Yan Zhou , Qiming Shao

Using both atomistic and particle-based simulations, we investigate the current-driven dynamics of skyrmions on two-dimensional periodic substrates when there are multiple skyrmions per substrate minimum. At zero drive, the system forms…

Mesoscale and Nanoscale Physics · Physics 2025-04-03 J. C. Bellizotti Souza , C. J. O. Reichhardt , C. Reichhardt , N. P. Vizarim , P. A. Venegas

Emergent electromagnetic induction (EEMI) induced through current-driven spin dynamics was recently predicted and subsequently observed in helical spin magnets, opening a new direction in spintronics and paving the way towards further…

Mesoscale and Nanoscale Physics · Physics 2025-03-14 Ludwig Scheuchenpflug , Sebastian Esser , Robert Gruhl , Max Hirschberger , Philipp Gegenwart

We show that superconducting correlations in the presence of non-zero condensate velocity can mediate the peculiar interaction between localized spins that breaks the global inversion symmetry of magnetic moments. The proposed interaction…

Superconductivity · Physics 2018-11-26 D. S. Rabinovich , I. V. Bobkova , A. M. Bobkov , M. A. Silaev

Defects, i.e. inhomogeneities of the underlying lattice, are ubiquitous in magnetic materials and can have a crucial impact on their applicability in spintronic devices. For magnetic skyrmions, localized and topologically non-trivial spin…

Materials Science · Physics 2023-04-26 Philipp Rieger , Markus Weißenhofer , Ulrich Nowak

The well-known Hall effect describes the transverse deflection of charged particles (electrons or holes) in an electric-current carrying conductor under the influence of perpendicular magnetic fields, as a result of the Lorentz force.…

A unified theoretical treatment is presented to describe the physics of electron dynamics in semiconductor and graphene systems. Electron spin fast alignment with the Zeeman magnetic field (physical or effective) is treated as a form of…

Quantum Physics · Physics 2015-05-13 S. G. Tan , M. B. A. Jalil , Takashi Fujita

We consider the effect of electron-electron interactions on the current-in-plane (CIP) conductivity and exchange coupling energy of a disordered metallic magnetic multilayer. We analyze its dependence on the value of ferromagnetic splitting…

Mesoscale and Nanoscale Physics · Physics 2010-09-29 Vladimir A. Zyuzin , A. Yu. Zyuzin

We find numerically skyrmionic textures with skyrmion number Q=0 in ferromagnets with the Dzyaloshinskii-Moriya interaction and perpendicular anisotropy. These have the form of a skyrmion-antiskyrmion pair and may be called chiral droplets.…

Mesoscale and Nanoscale Physics · Physics 2021-01-27 Naveen Sisodia , Pranaba Kishor Muduli , Nikos Papanicolaou , Stavros Komineas

I construct a minimal formalism to describe transport of non separable correlations arising when a superconductor is in contact with several electrodes (being ferromagnetic or normal metal). Transport theory is expressed in terms of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 R. Mélin

The skyrmion is a topologically stable spin texture, in which the spin direction wraps a sphere. The topological nature gives rise to emergent electromagnetic phenomena such as topological Hall effect. Recently, the crystallization of…

Materials Science · Physics 2015-06-04 Y. Onose , Y. Okamura , S. Seki , S. Ishiwata , Y. Tokura