RT info:eu-repo/semantics/article T1 Broadband transverse susceptibility in multiferroic Y-type hexaferrite Ba0.5Sr1.5Co2Fe2O22 A1 Hernández Gómez, Pablo A1 Martín González, Daniel A1 Torres Cabrera, Carlos A1 Muñoz Muñoz, José María K1 Y-type hexaferrites K1 Hexaferritas de tipo Y K1 Multiferroic materials K1 Materiales multiferroicos K1 Transverse susceptibility K1 Susceptibilidad transversal K1 2202.08 Magnetismo AB Single phase multiferroics in which ordered magnetism and ferroelectricity coexist, are of great interest for new multifunctional devices, and among them Y-type hexaferrites are good candidates. Transverse susceptibility measurements, which have been proved to be a versatile tool to study singular properties of bulk and nanoparticle magnetic systems, have been carried out with a broadband system on polycrystalline Y type hexaferrites with composition Ba0.5Sr1.5Co2Fe2O22, optimal to exhibit multiferroic properties. In the temperature range 80–350 K transverse susceptibility measurements with DC fields up to ±5000 Oe reveal different behaviour depending on the sintering temperature. The thermal evolution of the anisotropy field peak exhibits four regions with different slopes: positive in 80–130 K, negative in 130–200 K, constant in 200–280 K and negative in 280–350 K, which can be considered a signature of spin transitions in this compound. PB Elsevier SN 0304-8853 YR 2019 FD 2019 LK http://uvadoc.uva.es/handle/10324/37265 UL http://uvadoc.uva.es/handle/10324/37265 LA eng NO Journal of Magnetism and Magnetic Materials, 2019, vol. 476. p. 478-482 NO Producción Científica DS UVaDOC RD 22-nov-2024