Enhancement of THz Generation Using Multilayer Spintronic Emitters

Autor: Sascha Keller, E. Th. Pappaioannou, Laura Scheuer, Rene Beigang, G. Torosyan
Rok vydání: 2018
Předmět:
Zdroj: 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Popis: The properties of a three-layer Ta/Fe/Pt spintronic THz emitter based on the inverse spin Hall effect (ISHE) are investigated. Although Ta shows only a very weak ISHE a considerable enhancement of the generated THz amplitude was observed in comparison with a two-layer Fe/Pt system. The dependence on the total layer thickness is discussed in detail and explained in terms of the modified total impedance of the three-layer system.
Databáze: OpenAIRE