Ferromagnetism articles from across Nature Portfolio

Intrinsic anomalous Hall effect has been observed in twisted graphene multilayers, but these structures are typically not energetically favorable. This study extends these observations to Bernal-stacked tetralayer graphene, which is the most stable configuration of four-layer graphene.

Topological spin textures, such as skyrmions and antiskyrmions are of interest for use in information storage, owing to their inherent robustness. Critical to this use is the ability to manipulate these spin textures. Here, Yasin et al. demonstrate heat current driven transformation of a topological spin texture in a ferromagnet at room temperature.

Thermally assisted spin–orbit torque is used to switch the edge current chirality in mesoscopic quantum anomalous Hall devices.

Superconducting spintronics has the potential to enhance device functionality by realising spin polarised supercurrents with greater coherence and reduced dissipation. Here, using ferromagnetic resonance, the authors investigate the temperature dependence of the Gilbert damping for the Fe layer of Nb/Fe/Nb and Nb/Cr/Fe/Cr/Nb stacks and the impact superconducting spin triplets have on the spin pumping behaviour.

The interplay between ferromagnetism and superconductivity plays an important role in trying to understand the mechanisms of superconductivity in iron-based pnictides. Here, the authors investigate a phenomenon called intertype superconductivity which appears due to a crossover from type II to type I between the superconducting transition temperature and magnetic ordering one.

Stacking a bilayer of chromium triiodide, a layered antiferromagnet, onto another with a twist angle gives rise to a moiré magnet with rich magnetic phases, including ferromagnetic and antiferromagnetic orders. The magnetic orders can be controlled through the twist angle, temperature and electrical gating, with the system also showing voltage-assisted magnetic switching.

Ultrathin CrSBr, a two-dimensional magnet, has been shown to exhibit very rich magnetic behaviours, from an unexpected magnetic order to optical emissions coupled to its magnetic state. This material has great potential for use in ultra-compact spintronics devices.

Thin flakes of Cr₅Te₈, which exhibit a colossal anomalous Hall effect, can be synthesized using a phase-controlled chemical vapour deposition technique.

Using resonant inelastic X-ray scattering, a new experimental window is opened on fundamental magnetic excitations in mesoscopic ferromagnets.

High-magnetic-field experiments on the recently discovered unconventional superconductor UTe₂ are consistent with p-wave pairing arising while time-reversal symmetry is broken. In turn, this suggests that this material is a candidate for a chiral superconductor that may be exploited for topological quantum computing.

The ferromagnetism of iron has been known for millennia. Now a rotational form of spontaneous crystallographic ordering has been discovered. This touches upon fundamental questions about the relation between symmetry, structure and order in matter.