Vincent Baltz : Altermagnetism скачать в хорошем качестве

Vincent Baltz : Altermagnetism

Résumé : Altermagnets are characterized by anisotropic and asymmetric spin densities across their magnetic sublattices (Figure) and are described by a multipolar order parameter, sharing conceptual similarities with frameworks developed for superconductors and multiferroics [1,2]. This anisotropy is rooted in crystal symmetry, whether intrinsic or engineered through growth, and gives rise to a range of distinctive physical properties. In particular, altermagnets combine the best of both worlds: the spin-polarized currents of ferromagnets with the ultrafast dynamics and zero net magnetization of antiferromagnets. As such, they offer promising opportunities for the next generation of spintronic devices. In this presentation, I will showcase this emerging class of materials, with particular emphasis on our workhorse light-element altermagnet Mn5Si3 Références: [1] C Song et al, Altermagnets as a new class of functional materials, Nat. Rev. Mater. 10, 473 (2025) [2] V. Baltz et L. Michez, Altermagnétisme : la face cachée du monde magnétique, Reflets Phys. 83, 25 (2026) Biographie : Vincent Baltz is a CNRS researcher at SPINTEC. He aims to explore the unique spin transport properties of compensated magnets, including antiferromagnets and altermagnets, and their spin textures for spintronics.