RT Journal Article
T1 Tunnel conduction in epitaxial bilayers of ferromagnetic LaCoO3/La2/3Sr1/3MnO3 deposited by a chemical solution method
A1 Lucas, Irene
A1 Vila Fungueiriño, José Manuel
A1 Jiménez-Cavero, Pilar
A1 Rivas Murias, Beatriz
A1 Magén, César
A1 Morellón, Luis
A1 Rivadulla Fernández, José Francisco
K1 Spintronics
K1 Tunnel junction
K1 Conductive AFM
K1 Polymer assisted desposition
K1 Thin films
K1 Strain-induced ferromagnetism
AB We report magnetic and electronic transport measurements across epitaxial bilayers of ferromagnetic insulator LaCoO3 and half-metallic ferromagnet La2/3Sr1/3MnO3 (LCO/LSMO: 3.5 nm/20 nm) fabricated by a chemical solution method. The I–V curves at room temperature and 4K measured with conducting atomic force microscopy (CAFM) on well-defined patterned areas exhibit the typical features of a tunneling process. The curves have been fitted to the Simmons model to determine the height (φ) and width (s) of the insulating LCO barrier. The results yield φ = 0.40 ± 0.05 eV (0.50 ± 0.01 eV) at room temperature (4K) and s = 3 nm, in good agreement with the structural analysis. Our results demonstrate that this chemical method is able to produce epitaxial heterostructures with the quality required for this type of fundamental studies and applications.
PB American Chemical Society
SN 1944-8244
YR 2014
FD 2014-11
LK https://hdl.handle.net/10347/45783
UL https://hdl.handle.net/10347/45783
LA eng
NO Lucas, I., Vila-Fungueiriño, J. M., Jiménez-Cavero, P., Rivas-Murias, B., Magén, C., Morellón, L., & Rivadulla, F. (2014). Tunnel Conduction in Epitaxial Bilayers of Ferromagnetic LaCoO3/La2/3Sr1/3MnO3 Deposited by a Chemical Solution Method. ACS Applied Materials & Interfaces, 6(23), 21279-21285. https://doi.org/10.1021/am506259p
NO “This document is the Accepted Manuscript version of a Published Article that appeared in final form in [ACS Applied Materials & Interfaces], copyright © [ 2014 American Chemical Society]. To access the final published article, see DOI: 10.1021/am506259p”
NO The authors aknowledge the support to this work from Spanish Ministry of Science through project Nos. MAT2011-28532-C03-02, MAT2013-44673-R, and MAT2011-27553-C02 including FEDER funding, the Aragón Regional Government (Project No. E26), ERC-StG-259082(2DTHERMS) and Xunta de Galicia (2012-CP071). Jose Manuel Vila-Fungueiriño aknowledges MINECO of Spain for support through the FPI program, and Irene Lucas and Cesar Magen aknowledge Fundación Aragonesa para la I+D for support through ARAID program
DS Minerva
RD 23 may 2026