Spintronic based THz emitters

We develop THz sources of strong, tunable in broad range pulsed THz radiation by employing hetero-structures of ferromagnetic/antiferromagnetic and non-magnetic films and the physics of the spin Hall effect. We also use the property of inverse spin Hall effect in heterostructures of layers of ferromagnetic materials and non-ferromagnetic films to generate a powerful pulsed THz signal. 

Our publications in this area:

1. Strong impact of crystalline twins on the amplitude and azimuthal dependence of THz emission from epitaxial NiO/Pt, Rekha Agarwal, Sandeep Kumar, Niru Chowdhury, Kacho Imtiyaz Ali Khan, Ekta Yadav, Sunil Kumar and P. K. Muduli, Appl. Phy. Lett., 122, 082403 (2023).

2. Efficient terahertz emission from R-plane 𝛼⁢-Fe2⁢O3/Pt, Rekha Agarwal, Ziqi Li, Kacho Imtiyaz Ali Khan, Elbert E. M. Chia, and P. K. Muduli

Phys. Rev. B 109, 224408  (2024)