T-SHNO: Terahertz Spin Hall Nano Oscillator

Wireless surfing creates substantial digital footprints, demanding vast data storage and energy, equivalent to 1% of global energy consumption. Spin-based electronics offer a solution, outperforming conventional electronics.

However, conventional spin devices using ferromagnetic (FM) materials suffer from limited operating frequencies and high power consumption.This proposal aims to create a device achieving 1000 times faster speed while reducing power consumption by 16 times and understanding the underlying physics.

It uses two-dimensional transition metal dichalcogenides (TMDs) with ferrimagnetic (FiM) thin films to develop an energy-efficient, high-speed spin Hall nano oscillator (SHNO).

Objectives include integrating FiM with 2D-TMDs, investigating spin dynamics and orbital transport effects, and analyzing operational frequency and power consumption.The project´s first two objectives will be pursued in collaboration with Prof. Dario Arena at the University of South Florida using lab-based and X-ray resonance techniques, and the third with Prof.

Johan Åkerman at the University of Gothenburg using Brillouin light scattering microscopy.Exploring FiM/TMDs-based heterostructures offers advancements in SHNOs, especially the first-time demonstration of terahertz SHNO, and possibilities in two-dimensional materials, including skyrmion technology and neuromorphic computing, promising avenues for innovation.