Detection of microwave radiation by a ferromagnetic/normal metal heterostructure in the near field of an antenna

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The operation of a spintronic detector in the near field of an antenna emitting a microwave signal at a frequency of 10 GHz has been investigated. The feasibility of using a detector based on a Lu₃Fe₅O₁₂/Pt heterostructure, operating due to the inverse spin Hall effect, has been studied. A comparison was made between the experimentally measured output voltage of the detector and theoretical calculations of the power distribution of the electromagnetic field, performed using COMSOL Multiphysics. The sensitivity of the detector was determined, and the dependence of the output signal on the distance to the radiation source was measured. The obtained results confirm the feasibility of using spintronic heterostructures in wireless data and energy transmission systems. The prospects for using the detector in wireless communication and data transmission systems operating in the near field of an antenna, such as RFID (Radio Frequency Identification) and NFC (Near Field Communication), are considered.

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作者简介

D. Volkov

Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; National Research University “Moscow Power Engineering Institute” (MPEI)

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Email: d.a.volkov.work@gmail.com
俄罗斯联邦, Mokhovaya Str., 11, Build. 7, Moscow, 125009; Krasnokazarmennaya Str., 14, build. 1, Moscow, 111250

A. Matveev

Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University)

Email: d.a.volkov.work@gmail.com
俄罗斯联邦, Mokhovaya Str., 11, Build. 7, Moscow, 125009; Institutskiy per., 9, Dolgoprudny, Moscow Region, 141700

D. Gabrielyan

Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; National Research University “Moscow Power Engineering Institute” (MPEI)

Email: d.a.volkov.work@gmail.com
俄罗斯联邦, Mokhovaya Str., 11, Build. 7, Moscow, 125009; Krasnokazarmennaya Str., 14, build. 1, Moscow, 111250

A. Safin

Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; National Research University “Moscow Power Engineering Institute” (MPEI)

Email: d.a.volkov.work@gmail.com
俄罗斯联邦, Mokhovaya Str., 11, Build. 7, Moscow, 125009; Krasnokazarmennaya Str., 14, build. 1, Moscow, 111250

M. Mikhailov

Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; National Research University “Moscow Power Engineering Institute” (MPEI)

Email: d.a.volkov.work@gmail.com
俄罗斯联邦, Mokhovaya Str., 11, Build. 7, Moscow, 125009; Krasnokazarmennaya Str., 14, build. 1, Moscow, 111250

S. Nikitov

Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University); Saratov National Research State University named after N.G. Chernyshevsky

Email: d.a.volkov.work@gmail.com
俄罗斯联邦, Mokhovaya Str., 11, Build. 7, Moscow, 125009; Institutskiy per., 9, Dolgoprudny, Moscow Region, 141700; Astrakhanskaya Str., 83, Saratov, 410012

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2. Fig. 1. Experimental setup.

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3. Fig. 2. Dependences of the ISHE voltage V ISHE on the constant magnetic field H0 applied to Lu3Fe5O12/Pt at different distances between the emitter and the heterostructure.

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4. Fig. 3. Graphic explanations for the conducted electrodynamic modeling. Schematic diagram of the numerical model and the coordinate system. Inside the computational domain with dimensions dx × dy × dz, there is a simulated waveguide with dimensions a × b × c. The H10 mode was fed to the left face of the waveguide, parallel to the XOZ plane (a). The normalized moduli of the electric e = || and magnetic h = || fields obtained in the calculation in the z = dz /2 plane. The scale corresponds to the relative magnitude of the field modulus. Data were taken along the white line for comparison with the experiment (b).

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5. Fig. 4. Dependence of the resonant ISHE voltage VISHE on the distance to the microwave emitter Ly, which is the open end of the waveguide. The dots show the experimental data. The solid line shows the simulation results.

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