magnetism

Nature Communications, Published online: 05 September 2026; doi:10.1038/s41467-026-77568-z This work proposes a novel approach to achieve all-electrical magnetization switching by tilting the crystal structure of the spin source material, thereby manipulating the spin transport and polarization direction.

Suppose I have a steel bar sitting on a desk, inside the Earth's magnetic field. Suppose the bar is solid and it a cylinder, 1 meter tall and 25cm in radius. The Earth's field points uniformly through the long axis of the cylinder. Is there some way to determine the magnetic contribution coming from the steel bar? Is there even a magnetic signature since the time derivative of the magnetic field …

This problem set from Space Math at NASA provides 17 math exercises exploring the shapes, geometry, and scale of magnetic fields. For students grades K-12+, the problems serve as an engaging tool to supplement physics and solar science units, allowing students to apply practical mathematical concepts to heliophysics topics like coronal mass ejections and magnetospheres. […] The post Space Math at…

I am trying to understand a bit better Lenz's Law and magnetism. Can you guys double check my thought experiment and let me know what I might be misunderstanding? Suppose the following. We have a huge ring with a current in the XY plane, so that it is generating a magnetic field on the $z$ axis. The magnetic field is $B_z(z) = \frac{\mu_0 I R_1^2}{2 (R_1^2 + z^2)^{3/2}} \hat{z}$ We then drop a sm…

Researchers at JGU have visualized the interaction of magnetic vortices and shown that antiferromagnetic skyrmions move in line with an applied current

Researchers have shown that defects in lattices of magnetic quasiparticles called skyrmions can be created, stabilized, and manipulated.

Nature Communications, Published online: 03 June 2026; doi:10.1038/s41467-026-73780-z It is well established that intense laser pulses can demagnetize magnetic matter; however, the inverse process of magnetic moment enhancement by ultrafast laser light is generally precluded. Here, Sharma and coauthors show how combining a spin-orbit-induced spin texture with strong optical drive in CrSBr and CrI…

All over the world, researchers are working on an urgent and surprisingly difficult challenge: creating a cost-effective yet powerful permanent magnet that doesn’t use rare earth elements . Rare earth magnets are essential components of the motors for electric vehicles, heating and cooling systems, robots, tools, and appliances, and they’re also essential for wind turbines, audio speakers, and ot…

We've all seen a traditional compass.  A ferromagnetic, magnetized needle is mounted on a rotating bearing (or floated on the surface of a liquid) so that it can rotate in the \(x-y\) plane.  If there is an in-plane magnetic field \(\mathbf{B}\), the needle will rotate to align with that component of the field.  (It stops in the aligned state because of friction; otherwise it would "librate", osc…

A hidden magnetic order could unlock superconductivity Hidden magnetic order inside the pseudogap may be the missing link to understanding superconductivity. - Date: - January 26, 2026 - Source: - Simons Foundation - Summary: - Physicists have discovered that hidden magnetic order plays a key role in the pseudogap, a puzzling state of matter that appears just before certain materials become super…