3:15 PM - 3:30 PM
▼ [11p-W810-8] Spin wave detection by CPW with additional electrodes for external field modulation for neuromorphic application
Keywords:spin wave, magnonics, neuromorphic
A local disturbance in a magnetically ordered body can be propagated through a magnetic material, which is known as spin wave. It can carry information in the form of wave rather than translational motion of electron, rendering the possibility of joul heating free data processing and transmission. The sub 10 nm wavelength of spin wave also paves the way of GHz to THz computation with and shrinking the device size down to 10 nm and lower. However, the detection of spin wave is challenging. Researcher usually use brillouin light spectroscopy to detect spin wave signal which is good for basic characterization of spin wave. However, for practical device application we need to detect and transfer this signal to other subsystem. For this reason we focused on co-planner waveguide (CPW) for detecting spin wave. Moreover, for implementing the spin wave in data processing, we need to control and modulate it by external means. Among plenty of modulation techniques, we focused on current based modulation of spin wave considering the integration with existing technology. In this report, we would like to report the spin wave excitation and detection by using coplanar wave guide and vector network analyzer, and the modulation via magnetic fields using electric current flow.