Fabrication and characterization of a Vacodur49/PZT/Vacodur49 magnetoelectric sensor
Küçük Resim Yok
Tarih
2025
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, we report for the first time the fabrication and characterization of a Vacodur49/PZT/Vacodur49 trilayer magnetoelectric (ME) sensor. Vacodur49, a cobalt-iron-vanadium alloy, was employed as the magnetostrictive component due to its high saturation magnetization and significant magnetostriction (70 ppm). Structural and magnetic analyses confirmed the crystalline quality, magnetic softness, and favourable anisotropy of the alloy. The fabricated device exhibited a strong resonance-enhanced ME coupling, achieving a maximum ME coefficient of 361 V center dot cm(-1)center dot Oe(-1) under an AC magnetic field of 0.047 Oe at similar to 49.2 kHz. The sensor demonstrated ultra-high sensitivity with a minimum detectable AC magnetic field of 100 pT, excellent linearity, and fast response. Compared to many other magnetic materials, Vacodur49 provides superior mechanical robustness and enables thicker magnetostrictive layers. These results establish Vacodur49 as a novel and promising material platform for next-generation ME sensors, with potential applications in biomedical diagnostics, ultra-low-field detection, and precision magnetic sensing technologies.
Açıklama
Anahtar Kelimeler
Magnetoelectric effect, PZT, Vacodur49
Kaynak
Journal of Magnetism and Magnetic Materials
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
635
