Highly Bi-doped Cu thin films with large spin-mixing conductance

Ruiz-Gómez, S. ; Serrano, A. ; Guerrero, R. ; Muñoz, M. ; Lucas, I. (Universidad de Zaragoza) ; Foerster, M. ; Aballe, L. ; Marco, J.F. ; Amado, M. ; McKenzie-Sell, L. ; Di Bernardo, A. ; Robinson, J.W.A. ; González Barrio, M.Á. ; Mascaraque, A. ; Pérez, L.

Resumen: The spin Hall effect (SHE) provides an efficient tool for the production of pure spin currents, essentially for the next generation of spintronics devices. Giant SHE has been reported in Cu doped with 0.5% Bi grown by sputtering, and larger values are predicted for larger Bi doping. In this work, we demonstrate the possibility of doping Cu with up to 10% of Bi atoms without evidence of Bi surface segregation or cluster formation. In addition, YIG/BiCu structures have been grown, showing a spin mixing conductance larger that the one shown by similar Pt/YIG structures, reflecting the potentiality of these new materials.

Idioma: Inglés

DOI: 10.1063/1.5049944

Año: 2018

Publicado en: APL Materials 6, 10 (2018), 101107 [8 pp]
ISSN: 2166-532X

Factor impacto JCR: 4.296 (2018)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 61 / 293 = 0.208 (2018) - Q1 - T1
Categ. JCR: PHYSICS, APPLIED rank: 28 / 148 = 0.189 (2018) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 35 / 94 = 0.372 (2018) - Q2 - T2

Factor impacto SCIMAGO: 1.53 - Materials Science (miscellaneous) (Q1) - Engineering (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2014-52477-C5
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2015-64110-C2-2-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2017-87072-C4
Financiación: info:eu-repo/grantAgreement/ES/MINECO/SEV-2016-0686

Tipo y forma: Article (Published version)

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