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

Volume

44

Issue

11

fYear

2008

Firstpage

2670

Lastpage

2673

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2008.2003060

Filename

4717329