WebThe magnetic damping constant is a critical parameter for magnetization dynamics and the efficiency of memory devices and magnon transport. Therefore, its manipulation by electric fields is ... WebThey obtained a minimum of Gilbert damping between 10% to 20% of Co, which was not observed experimentally yet. Turek et al predicted a minimum of Gilbert damping at 25% in their theoretic work [19]. In experiment, the calculation leads to an intrinsic Gilbert damping value of (5.0± −1.8) · 10 4 in out-of-plane (OOP) geometry [17].
Phys. Rev. B 95, 134440 (2024) - Gilbert damping in binary …
WebNov 1, 2006 · The Gilbert damping constant of Fe4N is determined to be α = 0.021±0.02. We have also fabricated and characterized the current-perpendicular-to-plane (CPP) giant magnetoresistance (GMR) device ... WebDec 10, 2024 · First-Principles Calculations for Gilbert Damping Constant at Finite Temperature Ryoya Hiramatsu∗, Daisuke Miura, and Akimasa Sakuma Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan We propose a first-principles calculation method for the Gilbert damping constants at finite temperature. pusha t 18 wheeler
Temperature and Thickness Dependence of Statistical …
WebMar 21, 2024 · Abstract. Tailoring Gilbert damping of metallic ferromagnetic thin films is one of the central interests in spintronics applications. We report a giant Gilbert damping anisotropy in epitaxial Co50Fe50 C o 50 F e 50 thin films with a maximum-minimum damping ratio of 400%, determined by broadband spin-torque ferromagnetic resonance … WebThe spin dynamic process of the IrMn/CoFe system has been investigated by the time-resolved magneto-optical Kerr effect. It is found that both spin pumping and the interfacial exchange spring effect between IrMn and CoFe layers contribute to the total effective Gilbert damping. With the increase in IrMn layer thickness (tIrMn), the saturated … WebThe damping constant is found to be 8.4(0.3)x10^-3 in the Mo(3.5nm) capped CFA(8nm) sample corresponding to a ~42% enhancement of the original Gilbert damping (6.0(0.3)x10^-3) in the uncapped CFA layer. This is further confirmed by inserting a Cu dusting layer which reduces the spin transport across the CFA /Mo interface. pusha t air freshener