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Spin-injection radiation of terahertz waves in ferromagnetic structures |
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| Authors: | Yu. V. Gulyaev E. A. Vilkov P. E. Zil’berman G. M. Mikhailov S. G. Chigarev |
| Affiliation: | 1. Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, ul. Mokhovaya 11, bld. 7, Moscow, 125009, Russia 2. Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, ul. Institutskaya 6, Chernogolovka, Moscow oblast, 142432, Russia |
| Abstract: | We propose and discuss the mechanisms of terahertz sd exchange radiation during transmission of the spin-polarized current in a structure from a thin steel rod pressured to an ultrathin ferromagnetic film. The two mechanisms considered are quantum transitions between the quasi-Fermi levels in the film near the rod and precession of injected spins around the film magnetization. |
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