Issue 15, 2022

Spin to charge conversion in chemically deposited epitaxial La0.9MnO3 thin films capped with Pt

Abstract

Spin to charge conversion process in a broad range of temperatures is studied in La0.92MnO3/Pt bilayers prepared by polymer-assisted deposition (PAD). It is shown that an excellent LMO/Pt interface can be obtained in spite of using ex situ deposition of the Pt layer. The values obtained for the effective spin-mixing conductance, g↑↓eff = 0.76 × 1015 cm−2, suggest that significant spin transport across the LMO/Pt interface could be achieved. Spin pumping experiments generate a transversal voltage signal VISHE, due to spin to charge conversion via inverse spin Hall effect, that has been detected down to about 100 K with values of the spin-Hall angle, θSH, of about 2.5%, slightly decreasing on reducing temperature in the analyzed temperature range. These results indicate that LMO is a promising perovskite building block for all-oxide multifunctional high-frequency spintronics devices and that PAD technique provides oxide epitaxial thin films of good quality adequate for spintronic applications.

Graphical abstract: Spin to charge conversion in chemically deposited epitaxial La0.9MnO3 thin films capped with Pt

Supplementary files

Article information

Article type
Paper
Submitted
04 Jan 2022
Accepted
14 Mar 2022
First published
15 Mar 2022
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. C, 2022,10, 5914-5921

Spin to charge conversion in chemically deposited epitaxial La0.9MnO3 thin films capped with Pt

S. Martin-Rio, A. Pomar, C. Frontera, H. Wang, R. Manzorro, C. Magén, L. Balcells, N. Mestres and B. Martinez, J. Mater. Chem. C, 2022, 10, 5914 DOI: 10.1039/D2TC00048B

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