Publication date: Available online 4 December 2015
Source:Thin Solid Films
Author(s): I.M. Dildar, D.B. Boltje, M.B.S. Hesselberth, J. Aarts
We investigate thin films of La0.7 Sr0.3 MnO3 grown on SrTiO3 in which bridges of 100 μ m long and 1 μ m or 300 nm wide (distance between voltage contacts was 25 μ m) were defined lithographically. In bridges of 1 μ m, we find the current–voltage characteristics to be perfectly linear (ohmic) over the full temperature range between 400 K and 10 K. Strong non-linearities however are observed for a 300 nm wide bridge in the temperature regime below the transition temperature. The non-linearities are present even when applying a high magnetic field of 9 T.
Source:Thin Solid Films
Author(s): I.M. Dildar, D.B. Boltje, M.B.S. Hesselberth, J. Aarts