Terahertz Emission Amplitude-based 2D Mapping Of The Fe Thickness Profile In Fe/Pt Spintronic Heterostructure
Poster (OPTO-P3)Fri, 13 Nov 2020 01:15am to 03:00am
We demonstrate the feasibility of mapping metallic layer thickness profile in 2D based on the amplitude of the terahertz emission of a large area spintronic heterostructure. A circular Fe/Pt bilayer was deposited on glass substrate such that a 100 mm diameter circular space was covered with 4 nm Pt throughout and with a gradient of 0.5 nm to 7 nm thick Fe by magnetron sputtering. The Fe thickness dependence of the spintronic THz emission is clearly observed in just one sample by two-dimensional amplitude mapping.
Presenter: Anonymous
Authors: KOIKE, YOHEI; TETSUKAWA, SHOEI; NISHITANI, MIKIHIKO; KITAHARA, HIDEAKI; Mag-urasa, Varin; ASAKAWA, MAKOTO; YOSHIMURA, MASASHI; TANI, MASAHIKO; NAKAJIMA, MAKOTO
Institute of Laser Engineering, Kansai University, Panasonic Science Research Alliance Laboratories, Research center for the development of Far-Infrared region, Fukui University