Please use this identifier to cite or link to this item:
|Title:||Magnetotransport properties of nano-constriction array in La 0.67Sr0.33MnO3 film|
|Source:||Liu, H.J., Yang, T., Goh, W.C., Sow, C.H., Piramanayagam, S.N., Ong, C.K. (2005-11). Magnetotransport properties of nano-constriction array in La 0.67Sr0.33MnO3 film. European Physical Journal B 48 (1) : 37-40. ScholarBank@NUS Repository. https://doi.org/10.1140/epjb/e2005-00371-4|
|Abstract:||Nano-constriction array in La0.67Sr0.33MnO 3 film was fabricated by using ion beam etching masked by a monolayer of packed and ordered array of SiO2 microspheres. Nano-constrictions of around 50 nm in width were fabricated. The low field magnetoresistance (LFMR) exhibited in the samples were observed to be current dependent and the I-V characteristics of the film were found to be nonlinear. These observations were attributed to the co-existence of the ferromagnetic regions and the nano-constricted region of weakened ferromagnetic coupling where Mn 3+-O-Mn4+ bond were distorted due to the ion beam bombardment. The spin polarized bias current would strengthen local ferromagnetic coupling when passing through this nano-constricted regions. This current effect is relatively large comparing to the external magnetic field to the drop of resistance.|
|Source Title:||European Physical Journal B|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Apr 2, 2018
WEB OF SCIENCETM
checked on Feb 14, 2018
checked on Mar 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.