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Superconductivity allows to construct and operate magnets at field values beyond 2 Tesla, the practical limitation of normal-conducting magnets exploiting ferro-magnetism. The field of superconducting magnets is dominated by the field…

Accelerator Physics · Physics 2021-07-08 Gijs de Rijk

It has been shown that under joint action of DC magnetic and AC electric fields neutral particles (atoms,molecules,nano-size particles etc.) nearby interface move with permanent velocity along the surface. The driving force depends on…

Statistical Mechanics · Physics 2007-05-23 A. A. Ovchinnikov

It is demonstrated, owing to the nonlinearity of QED, that a static charge placed in a strong magnetic field\ $B$\ is a magnetic dipole (besides remaining an electric monopole, as well). Its magnetic moment grows linearly with $B$ as long…

High Energy Physics - Theory · Physics 2014-03-04 T. C. Adorno , D. M. Gitman , A. E. Shabad

Omnigenity is a desirable property of toroidal magnetic fields that ensures confinement of trapped particles. Confining charged particles is a basic requirement for any fusion power plant design, but it can be difficult to satisfy with the…

Plasma Physics · Physics 2024-04-05 Daniel W. Dudt , Alan G. Goodman , Rory Conlin , Dario Panici , Egemen Kolemen

Dirac monopoles have been widely studied and searched, though never found. A way out of this impasse is the idea that monopoles are not seen freely because they are confined by their strong magnetic forces forming a monopole-antimonopole…

High Energy Physics - Phenomenology · Physics 2011-07-20 Luis N. Epele , Huner Fanchiotti , Carlos A. Garcia-Canal , Vasiliki A. Mitsou , Vicente Vento

Geomagnetism is characterized by intermittent polarity reversals and rapid fluctuations. We have recently proposed a coupled macro-spin model to describe these dynamics based on the idea that the whole dynamo mechanism is described by the…

Earth and Planetary Astrophysics · Physics 2015-05-28 A. Nakamichi , H. Mouri , D. Schmitt , A. Ferriz-Mas , J. Wicht , M. Morikawa

The cause of magnetostriction is revealed by analyzing this phenomenon in a polydomain crystal of Fe. It is based on the two fundamentals: (a) magnetization is a rearrangement of spins by rearrangement of the crystal structure, and (b) the…

General Physics · Physics 2014-04-15 Yuri Mnyukh

We quantize the electromagnetic field in the presence of a static magnetic monopole, within the loop-representation formalism. We find that the loop-dependent wave functional becomes multivalued, in the sense that it acquires a dependence…

High Energy Physics - Theory · Physics 2015-06-26 Lorenzo Leal , Alexander Lopez

Since there is 3P2 neutron superfluid in neutron star interior, it can be treated as a system of magnetic dipoles. Under the presence of background magnetic field, the magnetic dipoles tend to align in the same direction. When the…

High Energy Astrophysical Phenomena · Physics 2016-12-15 Qiu-he Peng , Jie Zhang , Men-quan Liu , Chich-gang Chou

We study static magnetic monopoles in the context of varying alpha theories and show that there is a group of models for which the t'Hooft-Polyakov solution is still valid. Nevertheless, in general static magnetic monopole solutions in…

High Energy Physics - Phenomenology · Physics 2014-11-18 J. Menezes , P. P. Avelino , C. Santos

It is proven that if more than a single magnetic charge exists it is impossible to define a proper quantum mechanical angular momentum operator for an electrically charged particle in the field of the magnetic charges. Assuming that quantum…

High Energy Physics - Theory · Physics 2008-02-03 Douglas Singleton

Spin ice systems display a variety of very nontrivial properties, the most striking being the existence in them of magnetic monopoles. Such monopole states can also have nontrivial electric properties: there exist electric dipoles attached…

Strongly Correlated Electrons · Physics 2021-06-09 D. I. Khomskii

We construct the multi-charge generalizations for the electroweak magnetic monopole solution of Cho and Maison within a wide range of values of the magnetic charge. We use the same ansatz for the axially symmetric fields as the one…

High Energy Physics - Theory · Physics 2023-03-01 Romain Gervalle , Mikhail S. Volkov

The deterministic switching of magnetic order parameters is critically important, as it forms the fundamental basis for manipulating information states in magnetic memory devices. This work presents a general theoretical framework that…

Other Condensed Matter · Physics 2026-04-01 Xizhi Fu , Lei Han , Xi Liu , Cheng Song , Junwei Liu

A regular charge-monopole theory is derived from simple and self-evident postulates. It is shown that this theory provides explanations for effects of strong and nuclear interactions. The theory is compared with Dirac's monopole theory.…

General Physics · Physics 2007-05-23 E. Comay

A magnetic bipolar transistor is a bipolar junction transistor with one or more magnetic regions, and/or with an externally injected nonequilibrium (source) spin. It is shown that electrical spin injection through the transistor is possible…

Other Condensed Matter · Physics 2007-05-23 Jaroslav Fabian , Igor Zutic , S. Das Sarma

It is shown how to break the symmetry of a Lagrangian with duality symmetry between electric and magnetic monopoles, so that at low energy, electric monopole interactions continue to be observed but magnetic monopole interactions become…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jay R. Yablon

We describe new solutions of Yang-Mills-Higgs theories consisting of magnetic monopoles in a phase with fully broken gauge symmetry. Rather than spreading out radially, the magnetic field lines form flux tubes. The solution is topologically…

High Energy Physics - Theory · Physics 2009-11-10 David Tong

Diamagnetism, in which the magnetisation in a medium opposes the direction of an applied magnetic field, is a weak but familiar effect in a wide class of materials. Being weak it is also a linear response to any applied field. The problem…

Quantum Physics · Physics 2025-09-15 Niclas Westerberg , Stephen M. Barnett

The effects of a magnetic field on a modulated phase is studied. A modulated phase is found to have two critical fields $H_{1}$ and $H_{2}$. For a large enough magnetic field. $H_1$ can be approximated by a linear law. As a result, the…

Condensed Matter · Physics 2015-06-25 Bambi Hu , Jian Zhou