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The authors report about La0.67Sr0.33MnO3 single crystal manganite thin films in interaction with a gold capping layer. With respect to uncoated manganite layers of the same thickness, Au-capped 4nm thick manganite films reveal a dramatic reduction (≃185K) of the Curie temperature TC and a lower saturation low temperature magnetization M0. A sizable TC reduction (≃60K) is observed even when an inert SrTiO3 layer is inserted between the gold film and the 4nm thick manganite layer, suggesting that this effect might have an electrostatic origin.
American Institute of Physics
Publication date: 
3 Sep 2007

Riccardo Bertacco, Stefano Brivio, Matteo Cantoni, Andrea Cattoni, Daniela Petti, Marco Finazzi, Franco Ciccacci, AA Sidorenko, M Ghidini, G Allodi, R De Renzi

Biblio References: 
Volume: 91 Issue: 10 Pages: 102506
Applied Physics Letters