Low magnetic damping of ferrimagnetic GdFeCo alloys

Abstract

We investigate the Gilbert damping parameter for rare earth (RE)-transition metal (TM) ferrimagnets over a wide temperature range. Extracted from the field-driven magnetic domain-wall mobility, the Gilbert damping parameter was as low as 0.0072 and was almost constant across the angular momentum compensation temperature, starkly contrasting previous predictions that the Gilbert damping parameter should diverge at the angular momentum compensation temperature due to vanishing total angular momentum. Thus, magnetic damping of RE-TM ferrimagnets is not related to the total angular momentum but is dominated by electron scattering at the Fermi level where the TM has a dominant damping role.

arXiv comment20 pages, 3 figures

References in corpus (23)

• Antiferromagnetic spintronics
• Antiferromagnetic spintronics
• Enhanced Gilbert Damping in Thin Ferromagnetic Films
• Electrical switching of an antiferromagnet
• Room-temperature antiferromagnetic memory resistor
• Antiferromagnetic opto-spintronics: Part of a collection of reviews on antiferromagnetic spintronics
• Fast domain wall motion induced by antiferromagnetic spin dynamics at the angular momentum compensation temperature of ferrimagnets
• Ultra-low magnetic damping of a metallic ferromagnet
• Terahertz Antiferromagnetic Spin Hall Nano-Oscillator
• Spin Oscillations in Antiferromagnetic NiO Triggered by Circularly Polarized Light
• Staggering antiferromagnetic domain wall velocity in a staggered spin-orbit field
• Antiferromagnetic domain wall motion driven by spin-orbit torques
• Intrinsic and non-local Gilbert damping in polycrystalline nickel studied by Ti:Sapphire laser fs spectroscopy
• First-principles calculation of the Gilbert damping parameter via the linear response formalism with application to magnetic transition-metals and alloys
• Soliton-like magnetic domain wall motion induced by the interfacial Dzyaloshinskii-Moriya interaction
• Radiative damping in wave guide based FMR measured via analysis of perpendicular standing spin waves in sputtered Permalloy films
• Antiferromagnetic Domain Wall as Spin Wave Polarizer and Retarder
• Correlation between Compensation Temperatures of Magnetization and Angular Momentum in GdFeCo Ferrimagnets
• First-principles calculations of magnetization relaxation in pure Fe, Co, and Ni with frozen thermal lattice disorder
• Effects of Disorder and Internal Dynamics on Vortex Wall Propagation
• Coherent Terahertz Spin-Wave Emission Associated with Ferrimagnetic Domain Wall Dynamics
• Correlation between Magnetic Properties and Depinning Field in Field-Driven Domain Wall Dynamics in GdFeCo Ferrimagnets
• Origin of intrinsic Gilbert damping

Cited by in corpus (23)

• Roadmap of spin-orbit torques
• Gilbert damping phenomenology for two-sublattice magnets
• Spin-transfer torques for domain walls in antiferromagnetically coupled ferrimagnets
• Bidirectional spin-wave-driven domain wall motion in antiferromagnetically coupled ferrimagnets
• Giant effective damping of octupole oscillation in an antiferromagnetic Weyl semimetal
• Unifying femtosecond and picosecond single-pulse magnetic switching in GdFeCo
• Ultrathin ferrimagnetic GdFeCo films with very low damping
• Domain wall dynamics in antiferromagnetically-coupled double-lattice systems
• Temperature dependence of magnetic resonance in ferrimagnetic GdFeCo alloys
• Precession-free domain wall dynamics in compensated ferrimagnets
• Current-driven domain wall dynamics in ferrimagnets: micromagnetic approach and collective coordinates model
• Robust formation of nanoscale magnetic skyrmions in easy-plane thin film multilayers with low damping
• Observation of spin-motive force in ferrimagnetic GdFeCo alloy films
• Universal Critical Exponents of the Magnetic Domain Wall Depinning Transition
• Anomalies in the dynamics of ferrimagnets near the angular momentum compensation point
• Deterministic and stochastic aspects of current-induced magnetization reversal in perpendicular nanomagnets
• Domain-wall roughness in GdFeCo thin films: crossover length scales and roughness exponents
• On field-driven domain wall motion in compensated ferrimagnetic nanowires
• Ferrimagnet GdFeCo characterization for spin-orbitronics: large field-like and damping-like torques
• Temperature dependence of the damping parameter in the ferrimagnet Gd${}_3$Fe${}_5$O${}_{12}$
• Novel interpretation of recent experiments on the dynamics of domain walls along ferrimagnetic strips
• Analytical dispersion relation for forward volume spin waves in ferrimagnets near the angular momentum compensation condition
• Magnetic correlations in polycrystalline $\mathrm{T}{\mathrm{b}}_{0.15}\mathrm{C}{\mathrm{o}}_{0.85}$