Resumen de Non-collinear magnetism in chiral, spinel and organic magnets
Magnetism has intrigued humans for centuries, transitioning from early discoveries of lodestones to a core element in modern technology and physics, impacting daily life and global issues such as climate change and energy sustainability. Recently, the eld of non-collinear magnetism, featuring unique, tilted magnetic alignments within materials, has emerged, o ering new potential for developing intricate and e cient magnetic structures. In this doctoral thesis, conducted in joint supervision between the University of Zaragoza and the Osaka Prefecture University, we consider three factors that can contribute to non-collinear magnetism: the anti-symmetric Dzyaloshinskii-Moriya (DM) interaction, magnetic frustration in Heisenberg exchange interactions, and magnetic anisotropy due to the crystal eld e ect. These factors, in uenced by crystal symmetry and geometry, can lead to topologically non-trivial magnetic textures with a variety of length scales and physical properties. Speci cally, this thesis focuses on the sources of non-collinear magnetism in three key types of materials: chiral, spinel, and organic magnets, each presenting unique challenges and opportunities. The study of these materials opens the door not only to theoretical advances but also to revolutionary technological applications, from high-density and energy-e cient information storage solutions to the forefront of quantum computing and the development of next-generation sensors.
