Proximity effects induced by a gold layer on La0.67Sr0.33MnO3 thin films

R. Bertacco; S. Brivio; M. Cantoni; A. Cattoni; D. Petti; M. Finazzi; F. Ciccacci; A. A. Sidorenko; M. Ghidini; G. Allodi; R. De Renzi

doi:10.1063/1.2778353

Proximity effects induced by a gold layer on La0.67Sr0.33MnO3 thin films

Materials Science 2009-11-13 v1

Authors: R. Bertacco , S. Brivio , M. Cantoni , A. Cattoni , D. Petti , M. Finazzi , F. Ciccacci , A. A. Sidorenko , M. Ghidini , G. Allodi , R. De Renzi

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Abstract

We 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 4 nm-thick manganite films reveal a dramatic reduction (about 185 K) of the Curie temperature TC and a lower saturation low-temperature magnetization M0. A sizeable TC reduction (about 60 K) is observed even when an inert SrTiO3 layer is inserted between the gold film and the 4 nm-thick manganite layer, suggesting that this effect might have an electrostatic origin.

Keywords

La0.67Sr0.33MnO3 manganite thin films gold capping layer proximity effects Curie temperature saturation magnetization electrostatic origin SrTiO3

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@article{arxiv.0706.2688,
  title  = {Proximity effects induced by a gold layer on La0.67Sr0.33MnO3 thin films},
  author = {R. Bertacco and S. Brivio and M. Cantoni and A. Cattoni and D. Petti and M. Finazzi and F. Ciccacci and A. A. Sidorenko and M. Ghidini and G. Allodi and R. De Renzi},
  journal= {arXiv preprint arXiv:0706.2688},
  year   = {2009}
}

Proximity effects induced by a gold layer on La0.67Sr0.33MnO3 thin films

Abstract

Keywords

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