N. Hosoito et al., NEUTRON-DIFFRACTION STUDIES ON A NON-COUPLED GIANT MAGNETORESISTANCE SYSTEM, CO CU/NIFE/CU MULTILAYER/, Journal of the Physical Society of Japan, 64(2), 1995, pp. 581-587
By polarized neutron diffraction, a long range antiparallel alignment
of Co and NiFe(permalloy) layer magnetizations is confirmed in a non-c
oupled Co(10 Angstrom) /Cu(36 Angstrom)/NiFe(10 Angstrom)/Cu(36 Angstr
om) giant magnetoresistance system. A general relationship between the
magnetoresistance and the magnetization vectors of the Co and NiFe la
yers under various magnetic fields and temperatures is experimentally
derived. The observed large temperature change in the magnetoresistanc
e ratio is understood with this relationship.