Recent progress in antiferromagnetic dynamics
arXiv:2010.14940 · doi:10.1209/0295-5075/132/57001
Abstract
Spintronics, since its inception, has mainly focused on ferromagnetic materials for manipulating the spin degree of freedom in addition to the charge degree of freedom, whereas much less attention has been paid to antiferromagnetic materials. Thanks to the advances of micro-nano-fabrication techniques and the electrical control of the Néel order parameter, antiferromagnetic spintronics is booming as a result of abundant room temperature materials, robustness against external fields and dipolar coupling, and rapid dynamics in the terahertz regime. For the purpose of applications of antiferromagnets, it is essential to have a comprehensive understanding of the antiferromagnetic dynamics at the microscopic level. Here, we first review the general form of equations that govern both antiferromagnetic and ferrimagnetic dynamics. This general form unifies the previous theories in the literature. We also provide a survey for the recent progress related to antiferromagnetic dynamics, including the motion of antiferromagnetic domain walls and skyrmions, the spin pumping and quantum antiferromagnetic spintronics. In particular, open problems in several topics are outlined. Furthermore, we discuss the development of antiferromagnetic quantum magnonics and its potential integration with modern information science and technology.
7 pages, 2 figures
References in corpus (17)
- Spin pumping and spin-transfer torques in antiferromagnets
- Phenomenology of Current-Induced Dynamics in Antiferromagnets
- Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
- Superfluid spin transport through antiferromagnetic insulators
- Staggered Dynamics in Antiferromagnets by Collective Coordinates
- Spin transfer in an antiferromagnet
- Observation of spin current in quantum spin liquid
- Propulsion of a domain wall in an antiferromagnet by magnons
- Spin-transfer torques in anti-ferromagnetic metals from first principles
- Spin pumping and shot noise in ferrimagnets: bridging ferro- and antiferromagnets
- Topological spin Hall effects and tunable skyrmion Hall effects in uniaxial antiferromagnetic insulators
- Inelastic scattering in ferromagnetic and antiferromagnetic metal spintronics
- Gilbert damping in noncollinear ferromagnets
- Mode-Dependent Damping in Metallic Antiferromagnets Due to Inter-Sublattice Spin Pumping
- Damping and Anti-Damping Phenomena in Metallic Antiferromagnets: An ab-initio Study
- Ultrafast depinning of domain wall in notched antiferromagnetic nanostructures
- Reliable magnetic domain wall propagation in cross structures for advanced multi-turn sensor devices