Investigation of the temperature-dependence of ferromagnetic resonance and spin waves in Co2FeAl0.5Si0.5
arXiv:1410.0439 · doi:10.1063/1.4883495
Abstract
Co2FeAl0.5Si0.5 (CFAS) is a Heusler compound that is of interest for spintronics applications, due to its high spin polarization and relatively low Gilbert damping constant. In this study, the behavior of ferromagnetic resonance as a function of temperature was investigated in CFAS, yielding a decreasing trend of damping constant as the temperature was increased from 13 to 300 K. Furthermore, we studied spin waves in CFAS using both frequency domain and time domain techniques, obtaining group velocities and attenuation lengths as high as 26 km/s and 23.3 um, respectively, at room temperature.
References in corpus (5)
- Identification of the dominant precession damping mechanism in Fe, Co, and Ni by first-principles calculations
- First-principles study of magnetization relaxation enhancement and spin-transfer in thin magnetic films
- Spin wave nonreciprocity for logic device applications
- Evolution of ferromagnetic and spin-wave resonances with crystalline order in thin films of full-Heusler alloy Co2MnSi
- Characterization of magnetostatic surface spin waves in magnetic thin films: evaluation for microelectronic applications