ABSTRACT
This paper investigates the possibilities of creating magnetic field sensors using the direct magnetoelectric (ME) effect in a monolithic heterostructure of amorphous ferromagnetic material/langatate. Layers of 1.5 µm-thick FeCoSiB amorphous ferromagnetic material were deposited on the surface of the langatate single crystal using magnetron sputtering. At the resonance frequency of the structure, 107 kHz, the ME coefficient of linear conversion of 76.6 V/(Oeâcm) was obtained. Furthermore, the nonlinear ME effect of voltage harmonic generation was observed with an increasing excitation magnetic field. The efficiency of generating the second and third harmonics was about 6.3 V/(Oe2âcm) and 1.8 V/(Oe3âcm), respectively. A hysteresis dependence of ME voltage on a permanent magnetic field was observed due to the presence of α-Fe iron crystalline phases in the magnetic layer. At the resonance frequency, the monolithic heterostructure had a sensitivity to the AC magnetic field of 4.6 V/Oe, a minimum detectable magnetic field of ~70 pT, and a low level of magnetic noise of 0.36 pT/Hz1/2, which allows it to be used in ME magnetic field sensors.
ABSTRACT
The data presented in this article are related to the research article entitled "Phase stability and transport characteristics of (ZrO2)1-x(Sc2O3)x(СeO2)y and (ZrO2)1-x-y-z(Sc2O3)x(СeO2)y(Y2O3)z solid solution crystals" https://www.sciencedirect.com/science/article/pii/S2352340917302329 [1]. It contains data on densities and microhardness of the as-grown crystals. The data on the specific conductivity of the as-grown and annealing at 1000 °Ð¡ for 400 h ScCeSZ and ScCeYSZ crystals in the temperature range 623-1173 K is also included in this article. The article describes also the growth of the (ZrO2)1-x(Sc2O3)x(СeO2)y and (ZrO2)1-x-y-z(Sc2O3)x(СeO2)y(Y2O3)z solid solution crystals using directional melt crystallization in a cold crucible.
