title: Coupling Ferroelectricity with Spin-Valley Physics in Oxide-Based Heterostructures.
abstract: The coupling of spin and valley physics is nowadays regarded as a promising route toward next-generation spintronic and valleytronic devices. In the aim of engineering functional properties for valleytronic applications, we focus on the ferroelectric heterostructure BiAlO3/BiIrO3, where the complex interplay among a trigonal crystal field, layer degrees of freedom, and spin-orbit coupling mediates a strong spin-valley coupling. Furthermore, we show that ferroelectricity provides a nonvolatile handle to manipulate and switch the emerging valley-contrasting spin polarization.
authors.affiliation: ISIR-SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Yamauchi
authors.affiliation: Consiglio Nazionale delle Ricerche (CNR-SPIN), 67100 L'Aquila, Italy.
authors.forename: Paolo
authors.initials: P
authors.lastname: Barone
authors.affiliation: Department of Quantum Matter, ADSM, Hiroshima University, Higashihiroshima 739-8530, Japan.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Shishidou
authors.affiliation: ISIR-SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
authors.forename: Tamio
authors.initials: T
authors.lastname: Oguchi
authors.affiliation: Consiglio Nazionale delle Ricerche (CNR-SPIN), 67100 L'Aquila, Italy.
authors.forename: Silvia
authors.initials: S
authors.lastname: Picozzi