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Related papers: Monopoles in ferromagnetic metals

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We present theoretical evidence that a magnetic monopole emerges in dynamic magnetic systems in the presence of the spin-orbit interaction. The monopole field is expressed in terms of spin damping associated with magnetization dynamics. We…

Mesoscale and Nanoscale Physics · Physics 2012-02-28 Akihito Takeuchi , Gen Tatara

Magnetic monopoles are hypothetical particles that may exist as quantized sources and sinks of the magnetic field. In materials, they may appear in an emergent quantum electrodynamics described by a U(1) lattice gauge theory. Particularly,…

Strongly Correlated Electrons · Physics 2019-05-01 Sho Nakosai , Shigeki Onoda

The close connection of electricity and magnetism is one of the cornerstones of modern physics. This connection plays crucial role from the fundamental point of view and in practical applications, including spintronics and multiferroic…

Strongly Correlated Electrons · Physics 2013-07-01 D. I. Khomskii

The existence of magnetic monopoles is predicted by many theories of particle physics beyond the Standard Model. However, in spite of extensive searches, there is no experimental or observational sign of them. I review the role of magnetic…

High Energy Physics - Theory · Physics 2013-02-28 Arttu Rajantie

Using the $\phi$-mapping method, we argue that ferromagnetic spin-triplet superconductors allow formation of unstable magnetic monopoles. In particular, we show that the limit points and the bifurcation points of the $\phi$-mapping will…

Superconductivity · Physics 2008-09-02 Li-Da Zhang , Yi-Shi Duan , Yu-Xiao Liu

Magnetism and magnetic monopole are classical issues in basic physics. Conventional magnets are generally composed of rigid materials with shapes and structures unchangeable which may face challenges sometimes to answer the above questions.…

Soft Condensed Matter · Physics 2021-11-05 Ying-Xin Zhou , Jia-Sheng Zu , Jing Liu

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

Thermal fluctuations of the gauge field lead to monopole formation at the grand unified phase transition in the early Universe, even if the transition is merely a smooth crossover. The dependence of the produced monopole density on various…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Rajantie

We propose a method to create a monopole structure in a spin-1 spinor condensate by applying the basic methods used to create vortices and solitons experimentally in single-component condensates. We show, however, that by using a…

Soft Condensed Matter · Physics 2009-11-07 Jani-Petri Martikainen , A. Collin , K. -A. Suominen

Magnetic monopoles can appear as emergent structures in a wide range of physical settings, ranging from spin ice to Weyl points in semimetals. Here, a distribution of synthetic (Berry) monopoles in parameter space of a slowly changing…

Quantum Physics · Physics 2020-07-01 Andreas Eriksson , Erik Sjöqvist

One of the basic properties of magnetism is that a magnet has always two poles, north and south, which cannot be separated into isolated poles, the magnetic monopoles. There are strong theoretical arguments in favour of monopoles'…

High Energy Physics - Experiment · Physics 2026-05-05 Vasiliki A. Mitsou

It is argued that in magnetoelectrics with diagonal magnetoelectric coupling there should be a monopole-like distribution of magnetization around electric charge. It may lead to nontrivial transport properties of such materials, to…

Strongly Correlated Electrons · Physics 2015-09-15 D. I. Khomskii

Ferromagnetic semiconductors play a crucial role in spintronic devices, enabling effective control of electron spin over charge. This study explores their unique properties, ongoing advancements in spin control, and potential integration…

Applied Physics · Physics 2024-02-01 Nazmul Hasan

Motivated by recent results on small and hollow magnetic monopoles and on core and shell bimagnetic nanoparticles, we propose the construction of bimagnetic monopoles, which are structures that accommodate a magnetic monopole inside another…

High Energy Physics - Theory · Physics 2018-09-12 D. Bazeia , M. A. Marques , R. Menezes

Emergent quasiparticles that arise from the fractionalization of the microscopic degrees of freedom have been one of the central themes in modern condensed matter physics. The notion of magnetic monopoles, freely moving quasiparticles…

Strongly Correlated Electrons · Physics 2016-06-10 Gia-Wei Chern , Paula Mellado

I give a theoretical overview of magnetic monopoles, focusing on the physical perspective of monopoles as hypothetical particles rather than as mathematical objects. I argue that monopoles are exceptionally interesting hypothetical…

High Energy Physics - Phenomenology · Physics 2024-11-11 Arttu Rajantie

Damping in magnetization dynamics characterizes the dissipation of magnetic energy and is essential for improving the performance of spintronics-based devices. While the damping of ferromagnets has been well studied and can be artificially…

Materials Science · Physics 2017-11-15 Qian Liu , H. Y. Yuan , Ke Xia , Zhe Yuan

Frustration in magnetic systems is fertile ground for complex behaviour, including unconventional ground states with emergent symmetries, topological properties, and exotic excitations. A canonical example is the emergence of…

Strongly Correlated Electrons · Physics 2022-03-02 M. J. Pearce , K. Götze , A. Szabó , T. S. Sikkenk , M. R. Lees , A. T. Boothroyd , D. Prabhakaran , C. Castelnovo , P. A. Goddard

One of the most basic properties of magnetism is that a magnet always has two poles, north and south, which cannot be separated into isolated poles, i.e., magnetic monopoles. However, there are strong theoretical arguments why magnetic…

High Energy Physics - Theory · Physics 2015-03-13 Arttu Rajantie

Magnetic monopoles, if they exist, would be produced amply in strong magnetic fields and high temperatures via the thermal Schwinger process. Such circumstances arise in heavy ion collisions and in neutron stars, both of which imply lower…

High Energy Physics - Phenomenology · Physics 2017-12-20 Oliver Gould , Arttu Rajantie
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