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

Martin-Rio, Sergi ; Pomar, Alberto ; Frontera, Carlos ; Wang, Hailin ; Manzorro, Ramon ; Magen, Cesar (Universidad de Zaragoza) ; Balcells, Lluis ; Mestres, Narcis ; Martinez, Benjamin

Resumen: 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 up arrow down arrow(eff) = 0.76 x 10(15) cm(-2), suggest that significant spin transport across the LMO/Pt interface could be achieved. Spin pumping experiments generate a transversal voltage signal V-ISHE, 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, theta(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.

Idioma: Inglés

DOI: 10.1039/d2tc00048b

Año: 2022

Publicado en: JOURNAL OF MATERIALS CHEMISTRY C 10, 15 (2022), 5914-5921
ISSN: 2050-7526

Factor impacto JCR: 6.4 (2022)

Categ. JCR: PHYSICS, APPLIED rank: 32 / 160 = 0.2 (2022) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 86 / 343 = 0.251 (2022) - Q2 - T1

Factor impacto CITESCORE: 11.8 - Chemistry (Q1) - Materials Science (Q1)

Factor impacto SCIMAGO: 1.534 - Materials Chemistry (Q1) - Chemistry (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/EC/H2020/823717/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM3
Financiación: info:eu-repo/grantAgreement/ES/MCIU/PID2020-112914RB-I00
Financiación: info:eu-repo/grantAgreement/ES/MCIU/099960-B-I00
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CEX2019-000917-S

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)