Directional Spin Wave in Spin-Torque Oscillators Induced by Interfacial Dzyaloshinskii–Moriya Interaction

Wenqing Liu

Research output: Contribution to journalArticlepeer-review

85 Downloads (Pure)


Spin-torque oscillators (STOs) have tunable frequencies, low energy consumption, and high-quality factor compared to traditional oscillators. Here, we report the characteristics of nanocontact-STOs in the presence of interfacial Dzyaloshinskii–Moriya interaction (DMI) based on micromagnetic simulations. The DMI can decrease the STO frequency by about 2 GHz. More importantly, the DMI is able to break the isotropy of the spin-wave spectrum and turn the emitted microwave into directional spin-wave beams, potentially facilitating the synchronization of multiple STOs.
Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalIEEE Magnetic Letters
Early online date21 Sept 2017
Publication statusPublished - 2017

Cite this