Study of the magnetic–Alq3 interface in organic spin-valves

Morley, N. A., Drew, A. J., Zhang, H., Scott, K., Hudziak, S. and Morgan, David John ORCID: https://orcid.org/0000-0002-6571-5731 2014. Study of the magnetic–Alq3 interface in organic spin-valves. Applied Surface Science 313 , pp. 850-857. 10.1016/j.apsusc.2014.06.088

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Abstract

The interface between the organic semiconductor tris(8-hydrixyquinolate) aluminium (Alq3) and two different magnetic electrodes has been investigated using X-ray photoelectron spectroscopy (XPS), Kelvin Probe, atomic force microscopy (AFM) and magneto-optic Kerr effect (MOKE) magnetometry. The transition metal magnetic electrode/Alq3 films were first measured using a XPS, and then washed and remeasured. It was found that Alq3 still existed on the magnetic electrode after washing. This suggests that the Alq3 chemisorbs onto the transition metal electrode surfaces. Using MOKE magnetometry, the surface magnetisation of the transition metal electrodes was studied. It was found that the surface magnetisation of the NiFe electrode changed with the Alq3 layer on top, which was taken to be due to the Alq3 chemisorption onto the NiFe electrode, so changing the electronic states at the interface.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Cardiff Catalysis Institute (CCI) Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Elsevier
ISSN:	0169-4332
Last Modified:	27 Oct 2022 09:35
URI:	https://orca.cardiff.ac.uk/id/eprint/66614

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