Static Magnetic Proximity Effect in Pt Layers on Sputter-Deposited NiFe₂O₄ and on Fe of Various Thicknesses Investigated by XRMR

Kuschel, Timo, Klewe, Christoph, Bougiatioti, Panagiota, Kuschel, Olga, Wollschlaeger, Joachim, Bouchenoire, Laurence, Brown, Simon D, Schmalhorst, Jan-Michael, Meier, Daniel and Reiss, Guenter (2016) Static Magnetic Proximity Effect in Pt Layers on Sputter-Deposited NiFe₂O₄ and on Fe of Various Thicknesses Investigated by XRMR. IEEE TRANSACTIONS ON MAGNETICS, 52 (7). 4500104-.

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Abstract

The longitudinal spin Seebeck effect is detected in sputter-deposited NiFe2O4 films using Pt as a spin detector and compared to previously investigated NiFe2O4 films prepared by chemical vapor deposition. Anomalous Nernst effects induced by the magnetic proximity effect in Pt can be excluded for the sputter-deposited NiFe2O4 films down to a certain limit, since x-ray resonant magnetic reflectivity measurements show no magnetic response down to a limit of 0.04 {\mu}B per Pt atom comparable to the case of the chemicallydeposited NiFe2O4 films. These differently prepared films have various thicknesses. Therefore, we further studied Pt/Fe reference samples with various Fe thicknesses and could confirm that the magnetic proximity effect is only induced by the interface properties of the magnetic material.

Item Type:	Article
Additional Information:	4 pages, 4 figures
Uncontrolled Keywords:	Magnetic insulators, magnetic proximity effect (MPE), spin Seebeck effect, X-ray resonant magnetic reflectivity (XRMR)
Depositing User:	Symplectic Admin
Date Deposited:	23 Jan 2020 11:35
Last Modified:	14 Mar 2024 20:01
DOI:	10.1109/TMAG.2015.2512040
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3071713