Enhanced magnetic properties of cobalt-doped bismuth ferrite nanofibers

Autor: Sujian You, Bin Zhang
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Materials Research Express, Vol 7, Iss 4, p 046102 (2020)
Druh dokumentu: article
ISSN: 2053-1591
DOI: 10.1088/2053-1591/ab83a4
Popis: This study demonstrates the effect of Cobalt substitution on the structure, ferroelectric, and magnetic properties of BiFeO _3 (BFO) nanofibers. The BiFe _1−x Co _x O _3 (x = 0, 0.05, 0.1) nanofibers were successfully synthesized by a sol-gel based electrospinning method followed by thermal treatment. The BiFe _1−x Co _x O _3 nanofibers prepared under optimized conditions are a polycrystalline fiber that presents a rhombohedral distorted perovskite structure with a little amount impurity phase. Room temperature polarization and magnetization results indicated the multiferroic behavior of the nanofibers. Especially, the remnant magnetization is increased from 0.18 emu g ^−1 to 1.72 emu g ^−1 on increasing amount of Co substitution. The improvement of magnetism can be attributed to the Cobalt doping and size-effect.
Databáze: Directory of Open Access Journals