TY - JOUR
T1 - Origin of the anomalous low temperature upturn in the resistivity of the electron-doped cuprate superconductors
AU - Dagan, Y.
AU - Barr, M. C.
AU - Fisher, W. M.
AU - Beck, R.
AU - Dhakal, T.
AU - Biswas, A.
AU - Greene, R. L.
PY - 2005/2/11
Y1 - 2005/2/11
N2 - The temperature, doping, and field dependences of the magnetoresistance (MR) in Pr2-xCexCuO4-δ films are reported. We distinguish between orbital MR, found when the magnetic field is applied perpendicular to the ab planes, and the nearly isotropic spin MR. The latter, the major MR effect in the superconducting samples, appears in the region of the doping-temperature phase diagram where dp/dT < 0, or an upturn in the resistivity appears. We conclude that the upturn originates from spin scattering processes.
AB - The temperature, doping, and field dependences of the magnetoresistance (MR) in Pr2-xCexCuO4-δ films are reported. We distinguish between orbital MR, found when the magnetic field is applied perpendicular to the ab planes, and the nearly isotropic spin MR. The latter, the major MR effect in the superconducting samples, appears in the region of the doping-temperature phase diagram where dp/dT < 0, or an upturn in the resistivity appears. We conclude that the upturn originates from spin scattering processes.
UR - http://www.scopus.com/inward/record.url?scp=18244407539&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.94.057005
DO - 10.1103/PhysRevLett.94.057005
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AN - SCOPUS:18244407539
SN - 0031-9007
VL - 94
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
M1 - 057005
ER -