TY - JOUR
T1 - Universal relationship between giant magnetoresistance and anisotropic magnetoresistance in spin valve multilayers
AU - Miller, B. H.
AU - Stojković, Branko P.
AU - Dahlberg, E. D.
N1 - Funding Information:
We wish to thank A. Balatsky for useful conversations. This work has been supported by the US Department of Energy and by the AFOSR under grant no. AF/FA9620-92-J-0185.
PY - 1999
Y1 - 1999
N2 - We measure the giant magnetoresistance (GMR) with the current both parallel and perpendicular to the direction of the magnetization in the ferromagnetic (FM) layers and thus probe the anisotropy of the effective mean free paths for the spin-up and spin-down electrons, seen in the anisotropic magnetoresi stance. We find that the difference of the GMR in the two configurations, when expressed in terms of the sheet conductance, displays a nearly universal behavior as a function of GMR. On interpreting the results within the Boltzmann transport formalism we demonstrate the importance of bulk scattering for GMR.
AB - We measure the giant magnetoresistance (GMR) with the current both parallel and perpendicular to the direction of the magnetization in the ferromagnetic (FM) layers and thus probe the anisotropy of the effective mean free paths for the spin-up and spin-down electrons, seen in the anisotropic magnetoresi stance. We find that the difference of the GMR in the two configurations, when expressed in terms of the sheet conductance, displays a nearly universal behavior as a function of GMR. On interpreting the results within the Boltzmann transport formalism we demonstrate the importance of bulk scattering for GMR.
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U2 - 10.1016/S0375-9601(99)00166-8
DO - 10.1016/S0375-9601(99)00166-8
M3 - Article
AN - SCOPUS:0000436301
SN - 0375-9601
VL - 256
SP - 294
EP - 298
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 4
ER -