Title :
Comparison of Room Temperature Polymeric Spin-Valves With Different Organic Components
Author :
Dhandapani, D. ; Morley, N.A. ; Rao, A. ; Das, A. ; Grell, M. ; Gibbs, M.R.J.
Author_Institution :
Dept. of Eng. Mater., Univ. of Sheffield, Sheffield
Abstract :
We have compared the magnetoresistance of organic spin-valve (SV) structures with regioregular and regiorandom poly (3-hexylthiophene) (RR-P3HT and RRa-P3HT), hole transporting polymers, as the spacer layers sandwiched between two ferromagnetic electrodes. A SV structure of Fe50Co50 /RRa-P3HT/Ni81 Fe19 was the test structure used. At room temperature, we observed the co-occurrence of two magnetoresistance effects, the spin magnetoresistance and magnetoresistance in the electrodes.
Keywords :
cobalt alloys; ferromagnetic materials; interface magnetism; iron alloys; magnetic thin films; magnetoresistance; nickel alloys; organic semiconductors; polymers; spin valves; Fe50Co50-Ni81Fe19; ferromagnetic electrodes; hole transporting polymers; organic components; polymeric spin-valves; regiorandom poly (3-hexylthiophene); regioregular poly (3-hexylthiophene); spacer layers; spin magnetoresistance effects; temperature 293 K to 298 K; Magnetoresistance; spin valves and spintronics;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2003060
