Email this article Increasing the Efficiency of Terahertz Generation during the Current Flow through Magnetic Junctions Formed by Inhomogeneous Ultrathin Films of a Ferromagnetic Metal
- Authors: Gulyaev Y.V.1, Vilkov E.A.1, Chigarev S.G.1, Kulikov R.S.2, Safin A.R.2, Udalov N.N.2, Davydenko R.S.3, Kolesnikov A.G.3, Ognev A.V.3, Mikhailov G.M.4, Chernykh A.V.4, Il’in S.V.5
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Affiliations:
- Kotel’nikov Institute of Radio Engineering and Electronics
- Moscow Power Engineering Institute (National Research University)
- Far Eastern Federal University
- Institute of Microelectronics Technology and High-Purity Materials
- Ogarev Mordovia State University
- Issue: Vol 63, No 8 (2018)
- Pages: 928-932
- Section: Radio Phenomena in Solids and Plasma
- URL: https://journal-vniispk.ru/1064-2269/article/view/200064
- DOI: https://doi.org/10.1134/S1064226918080065
- ID: 200064
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Abstract
Operating modes of terahertz (THz) generators with “rod–film” magnetic junctions formed by a Fe rod with one pointed end with a diameter of 10–50 nm and various nanometer-thick (single-layer and multilayer) Со films are studied. It is demonstrated that the efficiency of the THz radiation increases (due to an increase in the current density) if the thickness of a single-layer film decreases to the point when it becomes discontinuous (ultrathin) while retains its conductivity. If a multilayer structure with several such films separated by nonmagnetic conductive layers is used, the radiation power can also be increased.
About the authors
Yu. V. Gulyaev
Kotel’nikov Institute of Radio Engineering and Electronics
Email: chig50@mail.ru
Russian Federation, Moscow, 125009
E. A. Vilkov
Kotel’nikov Institute of Radio Engineering and Electronics
Email: chig50@mail.ru
Russian Federation, Moscow, 125009
S. G. Chigarev
Kotel’nikov Institute of Radio Engineering and Electronics
Author for correspondence.
Email: chig50@mail.ru
Russian Federation, Moscow, 125009
R. S. Kulikov
Moscow Power Engineering Institute (National Research University)
Email: chig50@mail.ru
Russian Federation, Moscow, 111250
A. R. Safin
Moscow Power Engineering Institute (National Research University)
Email: chig50@mail.ru
Russian Federation, Moscow, 111250
N. N. Udalov
Moscow Power Engineering Institute (National Research University)
Email: chig50@mail.ru
Russian Federation, Moscow, 111250
R. S. Davydenko
Far Eastern Federal University
Email: chig50@mail.ru
Russian Federation, Vladivostok, 690090
A. G. Kolesnikov
Far Eastern Federal University
Email: chig50@mail.ru
Russian Federation, Vladivostok, 690090
A. V. Ognev
Far Eastern Federal University
Email: chig50@mail.ru
Russian Federation, Vladivostok, 690090
G. M. Mikhailov
Institute of Microelectronics Technology and High-Purity Materials
Email: chig50@mail.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432
A. V. Chernykh
Institute of Microelectronics Technology and High-Purity Materials
Email: chig50@mail.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432
S. V. Il’in
Ogarev Mordovia State University
Email: chig50@mail.ru
Russian Federation, Saransk, 430005
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