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8 papers · 2 filters
Influence of stress on magneto-impedance in Co71-xFexCr7Si8B14 (x = 0, 2) amorphous ribbons
B. Kaviraj, S. K. Ghatak
Systematic measurements of stress-impedance (SI) have been carried out using Co-rich amorphous ribbons of nominal composition Co71-xFexCr7Si8B14 (x = 0, 2) at various excitation fr…
Very large Magneto-impedance and its scaling behavior in amorphous Fe73.5Nb3Cu1Si13.5B9 ribbon
B. Kaviraj, S. K. Ghatak
Magneto-impedance (MI) effects have been observed for amorphous Fe73.5Nb3Cu1Si13.5B9 ribbon which has been excited by an a.c. magnetic field parallel to the length of the ribbon. M…
Thermodynamic investigation of an insulator irradiated by a low-energy electron beam
F. Pesty, P. Garoche
The surface of an insulating material irradiated by a beam of low energy electrons charges positively if the yield of secondary electron is greater than unity. For such a dynamical…
Current-driven microwave oscillations in current perpendicular-to-plane spin-valve nanopillars
Q. Mistral, Joo-Von Kim, T. Devolder +5
We study the current and temperature dependences of the microwave voltage emission of spin-valve nanopillars subjected to an in-plane magnetic field and a perpendicular-to-plane cu…
Magnetism of iron: from the bulk to the monoatomic wire
Gabriel Autes, Cyrille Barreteau, Daniel Spanjaard +1
The magnetic properties of iron (spin and orbital magnetic moments, magnetocrystalline anisotropy energy) in various geometries and dimensionalities are investigated by using a par…
Stochastic theory of spin-transfer oscillator linewidths
Joo-Von Kim
We present a stochastic theory of linewidths for magnetization oscillations in spin-valve structures driven by spin-polarized currents. Starting from a nonlinear oscillator model d…