Fig. 31
From: Research Progress in Rare Earth-Doped Perovskite Manganite Oxide Nanostructures
a Top view SEM image of a core-shell nanowire device showing four Ag/Au contact electrodes with even spacing. b, c Four-probe resistance (R) vs. temperature (T) curves measured under two different magnetic fields B = 0 T (red) and B = 1 T (blue), with b MgO/LaCaMnO3(LCMO) nanowire and c MgO/LaSrMnO3 (LSMO) nanowire. Insets of panels b, c magnetoresistance (MR) recorded at temperature T = 140 K for panel b and T = 240 K for panel c, respectively. Reproduced with permission of [229]