E. A. Vilkov, S. G. Chigarev, I. V. Malikov, L. A. Fomin, “Terahertz radiation in the Fe/Mo magnetic transition”, Fizika Tverdogo Tela, 2021, Volume 63, Issue 9,Pages <nobr>1193

XXV International Symposium Nanophysics and Nanoelectronics, Nizhny Novgorod, March 9-12, 2021
Metals

Terahertz radiation in the Fe/Mo magnetic transition

E. A. Vilkov^a, S. G. Chigarev^a, I. V. Malikov^b, L. A. Fomin^b

^a Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences, Fryazino, Moscow oblast, Russia
^b Institute of Microelectronics Technology and High-Purity Materials RAS, Chernogolovka, Moscow oblast, Russia

Abstract: An investigation was made of THz radiation in the Fe/Mo magnetic junction arising from the pumping by a high-density current of the upper spin subband in the induced ferromagnetism layer in Mo. The tensor character of the exchange interaction constant at the Fe/Mo interface, associated with the presence of the Dzyaloshinsky–Moriya interaction, promotes radiative relaxation.

Keywords: THz radiation, spin-polarized current, anisotropic exchange interaction, Dzyaloshinsky–Moriya interaction.

Received: 09.04.2021
Revised: 09.04.2021
Accepted: 19.04.2021

DOI: 10.21883/FTT.2021.09.51237.30H