TY - JOUR
T1 - Giant magnetoresistance in Co/Cu/Co pseudo spin valves
AU - Wang, J. Q.
AU - Malkinski, L. M.
AU - MacLaren, J. M.
AU - Whittenburg, S. L.
AU - O'Connor, C. J.
PY - 2001
Y1 - 2001
N2 - Co/Cu/Co pseudo-spin-valves (PSVs) were deposited with different buffer and capping layers on natural Si wafers using magnetron sputtering. Improved magnetoresistance (MR) performance was achieved with Fe buffer due to induced anisotropy with sharp magnetization reversal, high MR value (9.2%), and enhanced field sensitivity (>2.0%/Oe) at low switching field (20 Oe). The magnetization reversal of the PSVs with Cr/Cu buffer was found to be dependent on the Cu spacer thickness showing oscillations. The PSVs with Fe buffer showed excellent properties and sharp switching from 5 K to 300 K. The overall switching behavior is strongly influenced by the capping layer by affecting magnetic coupling between the two Co layers. The MR values of the PSVs were accurately interpreted within a model based on first principles solution to the Boltzman transport equations calculations.
AB - Co/Cu/Co pseudo-spin-valves (PSVs) were deposited with different buffer and capping layers on natural Si wafers using magnetron sputtering. Improved magnetoresistance (MR) performance was achieved with Fe buffer due to induced anisotropy with sharp magnetization reversal, high MR value (9.2%), and enhanced field sensitivity (>2.0%/Oe) at low switching field (20 Oe). The magnetization reversal of the PSVs with Cr/Cu buffer was found to be dependent on the Cu spacer thickness showing oscillations. The PSVs with Fe buffer showed excellent properties and sharp switching from 5 K to 300 K. The overall switching behavior is strongly influenced by the capping layer by affecting magnetic coupling between the two Co layers. The MR values of the PSVs were accurately interpreted within a model based on first principles solution to the Boltzman transport equations calculations.
UR - http://www.scopus.com/inward/record.url?scp=0035188590&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/msf.373-376.75
DO - 10.4028/www.scientific.net/msf.373-376.75
M3 - Conference article
AN - SCOPUS:0035188590
SN - 0255-5476
VL - 373-376
SP - 75
EP - 80
JO - Materials Science Forum
JF - Materials Science Forum
T2 - 8th European Magnetic Materials and Applications Conference (EMMA 2000)
Y2 - 7 June 2000 through 10 June 2000
ER -