title: Mode locking of spin waves excited by direct currents in microwave nano-oscillators.
abstract: A spin-wave theory is presented which explains the frequency pulling and mode locking observed when two closely spaced spin-transfer nanometer-scale oscillators with slightly different frequencies are separately driven in the same magnetic thin film by spin-polarized carriers at high direct-current densities. The theory confirms recent experimental evidence that the origin of the phenomena lies in the nonlinear interaction between two overlapping spin waves excited in the magnetic nanostructure.
authors.affiliation: Departamento de Física, Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil.
authors.forename: S M
authors.initials: SM
authors.lastname: Rezende
authors.forename: F M
authors.initials: FM
authors.lastname: de Aguiar
authors.forename: R L
authors.initials: RL
authors.lastname: Rodríguez-Suárez
authors.forename: A
authors.initials: A
authors.lastname: Azevedo