화학공학소재연구정보센터
Thin Solid Films, Vol.520, No.14, 4600-4603, 2012
Magneto-electrical transport in V-patterned La0.7Sr0.3MnO3 nanostructures
We investigate the electrical transport and magnetic field dependence of nano-patterned La0.7Sr0.3MnO3 devices. We find that the resistivity versus temperature dependence is the same as that observed in thin films, indicating that our nano-patterning preserves the fundamental properties of the material. At temperatures below 20K there is resistivity upturn of similar to 5 % in the smallest and thinnest device. Structures in a "V" pattern were fabricated in order to investigate domain wall resistance. We find a much smaller resistance area product as compared to previous reports observed in nanoconstrictions and also that the switching field matches that in micromagnetic simulations. (C) 2011 Elsevier BM. All rights reserved.