Gyrator Based on Magneto-elastic Coupling at a Ferromagnetic/Piezoelectric Interface.

ABSTRACT: A gyrator is a non-reciprocal two port device with 180° phase shift in the transmissions between two ports. Though electromagnetic realizations of gyrators have been well studied, devices based on other forms of interaction are relatively unexplored. Here we demonstrate a device in which signal is transmitted via magneto-elastic coupling, can function as a gyrator. The device is built on a piezoelectric substrate: one port of this device has interdigital transducers (IDTs) and the other port has a periodic array of nickel/gold lines. When the magnetizations of Ni lines are excited into precession by magnetic field generated by passing oscillating current through the gold lines, they emit phonons in the form of surface acoustic waves (SAW) due to the magneto-elastic coupling between Ni and

SUBMITTER: Bhuktare S 

PROVIDER: S-EPMC5429798 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature