1. Spin to charge conversion in chemically deposited epitaxial La0.9MnO3 thin films capped with Pt.
- Author
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Martin-Rio, Sergi, Pomar, Alberto, Frontera, Carlos, Wang, Hailin, Manzorro, Ramón, Magén, César, Balcells, Lluis, Mestres, Narcis, and Martinez, Benjamin
- Abstract
Spin to charge conversion process in a broad range of temperatures is studied in La
0.92 MnO3 /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,SH , 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. [ABSTRACT FROM AUTHOR]- Published
- 2022
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