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We estimate the conjectured interaction between the Earth gravitational field and a superconductor immersed in external, static electric and magnetic field. The latter is close to the sample upper critical field and generates the presence…

General Relativity and Quantum Cosmology · Physics 2022-02-04 Giovanni Ummarino , Antonio Gallerati

This paper devoted to proof the existence of stable quasi-periodic motions of the magnetic dipole that is under the action of the external magnetic field and homogeneous field of gravity. For proof this we used the group-theoretic methods…

Mathematical Physics · Physics 2013-07-10 Stanislav S. Zub

A permanent magnet can be levitated simply by placing it in the vicinity of another permanent magnet that rotates in the order of 200 Hz. This surprising effect can be easily reproduced in the lab with off-the-shelf components. Here we…

A possible theoretical basis is given for propulsive force generation by both conventional and unconventional means.

General Relativity and Quantum Cosmology · Physics 2007-05-23 C. C. Briggs

The realization of negative refraction in atomic gases requires a strong magnetic response of the atoms. Current proposals for such systems achieve an enhancement of the magnetic response by a suitable laser field configuration, but still…

Quantum Physics · Physics 2009-11-13 B. Jungnitsch , J. Evers

The possibility of spontaneous magnetization due to the "asymmetry in mass" of charge carriers in a system is investigated. Analysis shows that when the masses of positive and negative charge carriers are identical, no magnetization is…

Plasma Physics · Physics 2013-11-04 Shi Chen , JiaKun Dan , ZiYu Chen , JianFeng Li

We demonstrate experimentally with a prototype for the first time, that an artificial emergent magnetic unipole hedgehog field in a simply connected three dimensional domain is possible, emulating effectively the Dirac model by simply using…

Instrumentation and Detectors · Physics 2021-09-28 Emmanouil Markoulakis , John Chatzakis , Anthony Konstantaras , Emmanuel Antonidakis

Magnetization behavior of long nanowires with square cross-section under influence of strong perpendicular spin-polarized current is studied theoretically. The study is based on Landau-Lifshitz-Slonczewski phenomenology. In the no current…

Mesoscale and Nanoscale Physics · Physics 2013-06-12 Volodymyr P. Kravchuk , Oleksii M. Volkov , Denis D. Sheka , Yuri Gaididei

Theory and recent experiments concerning exchange-driven magnetic excitation (EDME) are reviewed. This phenomenon employs the exchange field produced by a narrowly distributed spin-polarized electron current to excite Larmor precession in a…

Condensed Matter · Physics 2007-05-23 J. C. Slonczewski

Rectangular pinning arrays of Ni dots define a potential landscape for vortex motion in Nb films. Magnetotransport experiments in which two in-plane orthogonal electrical currents are injected simultaneously allow selecting the direction…

Superconductivity · Physics 2009-11-10 J. E. Villegas , E. M. Gonzalez , M. I. Montero , Ivan K. Schuller , J. L. Vicent

Teaching magnetism is one of the most challenging topics at undergraduate level in programmes with scientific background. A basic course includes the description of the magnetic interaction along with empirical results such as the…

Physics Education · Physics 2024-02-16 Jorge Enrique García-Farieta , Alejandro Hurtado

We present an interaction modeling for the relativistic spin-0 charged particles moving in a uniform magnetic field. In the absence of an improved perturbative way, we solve directly Kummer's differential equation including principal…

Quantum Physics · Physics 2023-08-02 Sami Ortakaya

The flow of a matter, accreting onto a magnetized neutron star, is accompanied by an electric current. The closing of the electric current occurs in the crust of a neutron stars in the polar region across the magnetic field. But the…

High Energy Astrophysical Phenomena · Physics 2016-04-01 Ya. N. Istomin , I. A. Semerikov

The out-of-plane magnetic field, generated by fast magnetic reconnection, during collisionless, stressed $X$-point collapse, was studied with a kinetic, 2.5D, fully electromagnetic, relativistic particle-in-cell numerical code, using both…

Solar and Stellar Astrophysics · Physics 2014-10-16 J. Graf von der Pahlen , D. Tsiklauri

The magnetar magnetosphere is gradually twisted by shearing from footpoint motion, and stored magnetic energy also increases at the same time. When a state exceeds a threshold, flares/outbursts manifest themselves as a result of a…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Yasufumi Kojima

Magnetic Levitation (MagLev) systems fundamentally increase the flexibility of in-machine material flow in industrial automation. Therefore, these systems enable dynamic throughput optimization, which is especially beneficial for high-mix…

Robotics · Computer Science 2026-03-03 Lara Bergmann , Noah Greis , Klaus Neumann

In this paper a new method is derived for constructing electromagnetic surface sources for stationary axisymmetric electrovac spacetimes endowed with non-smooth or even discontinuous Ernst potentials. This can be viewed as a generalization…

General Relativity and Quantum Cosmology · Physics 2016-08-31 L. Fernandez-Jambrina

Hybrid magnetic shields with both active field generating components and high-permeability magnetic shielding are increasingly needed for a variety of technologies and experiments that require precision-controlled magnetic field…

Applied Physics · Physics 2021-06-04 M. Packer , P. J. Hobson , N. Holmes , J. Leggett , P. Glover , M. J. Brookes , R. Bowtell , T. M. Fromhold

Three-dimensional MEMS magnetometers with use of residual stresses in thin multilayers cantilevers are presented. Half-loop cantilevers based on Lorentz-force deflection convert magnetic flux in changes, thanks to piezoresistive transducers…

Other Computer Science · Computer Science 2008-02-22 M. El Ghorba , N. André , S. Sobieski , J. -P. Raskin

Dependence of magnetic field generation on the rotation rate is explored by direct numerical simulation of magnetohydrodynamic convective attractors in a plane layer of conducting fluid with square periodicity cells for the Taylor number…

Chaotic Dynamics · Physics 2015-05-13 R. Chertovskih , S. M. A. Gama , O. Podvigina , V. Zheligovsky