Open AccessПараметрическое усиление магнитоакустических колебаний в структуре ферромагнетик-пьезоэлектрик
Author(s) -
Д.А. Бурдин,
Д.В. Чашин,
Н.А. Экономов,
Ю.К. Фетисов
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.04.49053.18116
Subject(s) - piezoelectricity , lead zirconate titanate , materials science , rigidity (electromagnetism) , electric field , vibration , excitation , excited state , magnetic field , resonator , condensed matter physics , nuclear magnetic resonance , acoustics , ferroelectricity , physics , dielectric , optoelectronics , atomic physics , composite material , quantum mechanics
Parametric amplification of magnetoacoustic oscillations was observed in a disk resonator containing a ferromagnetic layer of FeBSiC and a piezoelectric layer of lead zirconate-titanate. Oscillations with a frequency of 3.08 kHz were excited and recorded using two coils with orthogonal axes. Pumping was performed by an electric field with a double frequency applied to the piezoelectric layer. The amplification of vibrations arises due to a change in the rigidity of the structure under influence of an electric field. It is shown that the gain can be changed using a permanent bias magnetic field applied to the structure.