Ferrimagnetic materials are composed of several different, non-parallel but coupled magnetic sublattices. When a spin current is injected in a ferrimagnet, it can exert different torques on the sublattices. Moreover, the dynamical response of the ferrimagnet is also fundamentally marked by its multiple spin populations. This makes ferrimagnetic spintronics intrinsically distinct from the usual ferromagnetic case, and makes it interesting both to the study of its fundamental aspects as well as to applications. Indeed, recent results – be it the higher mobility of current-driven domain walls and skyrmions in ferrimagnets, or the very large spin current generation in ferrimagnets – illustrate the great potential of ferrimagnetic materials for spintronic devices.
This Special Issue aims to cover the recent developments of the complete field of Ferrimagnetic Spintronics, from the study of materials, modelling of its dynamics, driving of magnetic textures, up to applications. It will cover the study of the origin of spin currents in ferrimagnets and their effects, be it on ferrimagnetic textures and spinwaves or on fast demagnetization and switching processes.
Topics covered include, but are not limited to:
- Spin currents in ferrimagnets (FiMs): quantifying new generation mechanisms, applications.
- Dynamics of magnetic textures in FiMs
- Spin-wave dynamics in FiMs
- Novel devices employing FiMs: Switching (MRAM-like), “passive features”: exchange bias, reference layers.
- Fast demagnetisation of FiM by spin currents
- Material combinations offering improved functionality
- Comprehension of FiM function through modelling: micromagnetism, atomistic models, etc.
Information for Authors
For details on the scope and criteria of Applied Physics Letters, please see the journal’s Editorial Policies. For guidelines on manuscript preparation, including manuscript length, please see the journal’s Author Instructions.
Lucas Caretta, Brown University
Claudia Felser, Max Planck Institute for Chemical Physics of Solids
Se Kwon Kim, KAIST
Thomas Ostler, University of Hull
Juan-Carlos Rojas-Sánchez, Institute Jean Lamour, CNRS
João Sampaio, Laboratoire de Physique des Solides, CNRS
Liza Herrera Diez, Centre for Nanoscience and Nanotechnologies, CNRS