Giant magnetoresistance in spin valves

+184hlm.;24c

Current-in-plane magnetoresistance : a new approach to boundary conditions

We have rigorously calculated all the possible two-body rate constants associated with population dynamics of the hyperfine levels of atomic hydrogen as a function of magnetic field at T=0 K. These results are important in view of the recently suggested use of magnetic traps to obtain Bose-Einstein condensation

Analysis of scattering lengths in Co/Cu/Co and Co/Cu/Co/Cu spin-valves using a Ru barrier

We use uncoupled Co/Cu/Co and Co/Cu/Co/Cu spin-valve structures with a Ru barrier shifted through the top Co and Cu layer, respectively, to measure the longest of the electron mean free paths in Co and Cu as originally suggested by Parkin. From semiclassical transport calculations and careful analysis of the magnetoresistance data we conclude that the exponential behavior of ¿G is uniquely related to the longest of the Co and Cu mean free paths under the condition of effective spin-dependent filtering at the interfaces or in the bulk of the Co. In this regime we have compared ¿long in Co and Cu with bulk conductivities (~¿short+¿long), yielding no strong evidence for bulk spin-dependent scattering in Co

Giant Magneto Resistance in Spin Valves

+184hlm.;24c