Theoretical Proposal for Determining Angular Momentum Compensation in Ferrimagnets
arXiv:1712.04624 · doi:10.1103/PhysRevB.97.184410
Abstract
This work demonstrates that the magnetization and angular momentum compensation temperature (TMC and TAMC) in ferrimagnets (FiM) can be unambiguously determined by performing two sets of temperature dependent current switching, with the symmetry reverses at TMC and TAMC, respectively. A theoretical model based on the modified Landau-Lifshitz-Bloch equation is developed to systematically study the spin torque effect under different temperatures, and numerical simulations are performed to corroborate our proposal. Furthermore, we demonstrate that the recently reported linear relation between TAMC and TMC can be explained using the Curie-Weiss theory.
4 pages, 4 figures
References in corpus (5)
- Fast domain wall motion induced by antiferromagnetic spin dynamics at the angular momentum compensation temperature of ferrimagnets
- Anomalous current-induced spin torques in ferrimagnets near compensation
- Thickness Dependence of Spin-Orbit Torques in Ferrimagnetic GdFeCo Alloys
- Self-Focusing Skyrmion Racetracks in Ferrimagnets
- Correlation between Compensation Temperatures of Magnetization and Angular Momentum in GdFeCo Ferrimagnets
Cited by in corpus (7)
- Electrical generation and detection of terahertz signal based on spin-wave emission from ferrimagnets
- Spatially Nonuniform Oscillations in Ferrimagnets Based on an Atomistic Model
- Spin-torque-induced magnetization dynamics in ferrimagnets based on Landau-Lifshitz-Bloch Equation
- Enhancement of domain-wall mobility detected by NMR at the angular momentum compensation temperature
- Spin-Transfer-Torque Induced Spatially Nonuniform Switching in Ferrimagnets
- Anomalous impact of thermal fluctuations on spintransfer torque induced ferrimagnetic switching
- Anomalous switching pattern in the ferrimagnetic memory cell