Antiresonance in (Ni,Zn) ferrite-carbon nanofibres nanocomposites

作者：Fernandez Garcia Lucia^*; Suarez Marta; Luis Menendez Jose; Pecharroman Carlos; Torrecillas Ramon; Peretyagin Pavel Y; Petzelt Jan; Savinov Maxim; Frait Zdenek

来源：Materials Research Express, 2015, 2(5): 055003.

DOI：10.1088/2053-1591/2/5/055003

• ceramic composites
• ferromagnetic resonance
• ferrite devices

(NiZn)Fe2O4 carbon nanofiber (CNF) nanocomposites with concentrations up to 5% in volume of CNFs were prepared by traditional ceramic processing and a subsequent spark plasma sintering at 860 degrees C with a holding time of 1 min. Low-frequency conductivity and magnetic properties were studied, revealing the appearance of a ferromagnetic antiresonance when a certain value of conductivity is reached due to the introduction of a conductive second-phase CNF in the ferromagnetic matrix (ferrite), thereby opening a route to induce magnetically tunable transparency in these composites.

• 出版日期2015-5