Figure 4.

aThe linear dependence of resistance as function of the lnTand for different magnetic field intensities. The expected lnTdependence of the resistivity is clearly observed until ∼0.3 T and for higher magnetic fields, the resistance does not exhibit the negative temperature coefficient.bThe magnetoresistance measurements providing additional confirmation of weak localization effects

Berengue et al. Nanoscale Research Letters 2009 4:921-925   doi:10.1007/s11671-009-9336-4