Figure 3
From: Insulating phase at low temperature in ultrathin La0.8Sr0.2MnO3 films
Transport properties of LSMO films with different thickness.
(a) Temperature dependent resistivity of LSMO films with various thicknesses. (b) Temperature dependent resistivity of the 9 u.c. and 10 u.c. films, the arrow indicates variation of the resistivity upturn between the two films. The red solid lines in (a,b) show the fitting results of the low temperature insulating behaviors of the films with resistivity upturn by the 3D Mott VRH mechanism. (c) Log plot of resistivity as a function of T−1/2 for the 5 u.c. film. (d) The thickness-dependent Tmin and the localization lengths 
of the ultrathin films with resistivity upturn.
