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Автор(ы) : Babitskii A. N., Belyaev B. A., Boev N. M., Skomorokhov G. V., Izotov A. V., Galeev R. G.
Заглавие : A magnetometer of weak quasi-stationary and high-frequency fields on resonator microstrip transducers with thin magnetic fields
Место публикации : Instrum. Exp. Tech.: MAIK Nauka-Interperiodica / Springer, 2016. - Vol. 59, Is. 3. - P.425-432. - ISSN 00204412 (ISSN), DOI 10.1134/S0020441216030131
Примечания : Cited References: 23. - This study was performed within the framework of the State Job of the Ministry of Education and Science of the Russian Federation for the research at the Siberian Federal University in 2014 (project no. 3.528.2014K).
Предметные рубрики: Ferromagnetic-resonance
Films
Susceptibility
Anisotropy
Sensors
Trends
Аннотация: A high-sensitivity magnetometer for simultaneous measurements of three components of a weak quasi-stationary or high-frequency magnetic-field vector was developed and investigated. Microstrip structures that are based on irregular resonators serve as the magnetometer transducers. An anisotropic thin-film magnetic structure is used as the sensing element. This structure consists of two thin magnetic films that are prepared by magnetron sputtering of a Ni75Fe25 permalloy target and separated by a silicon monoxide layer. It is demonstrated that the transducer exhibits the maximum sensitivity, when the easy magnetization axis of the film structure is orthogonal to the polarization direction of the pumping microwave magnetic field in the microstrip resonator and at an optimal value of a constant magnetic bias field and its optimal deflection from the pumping-field polarization direction which is parallel to it. The magnetometer is characterized by a wide dynamic range of measured magnetic fields, 10–10–10–4 Т, and a wide frequency range, 10–1–105 Hz. © 2016, Pleiades Publishing, Inc.
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