1. Low-temperature magnetic properties of erbium doped bismuth nano-ferrites.
- Author
-
Naveena, Gadwala, Ravinder, D., Babu, T. Anil, Reddy, B. Ravinder, Sumalatha, Edapalli, Vani, K., Rajender, Thota, and Prasad, N. V. Krishana
- Subjects
MAGNETIC properties ,ERBIUM ,BISMUTH ,BISMUTH iron oxide ,TRANSMISSION electron microscopy ,FERRITES - Abstract
Nanocrystalline pure and erbium (Er
3+ )-substituted bismuth ferrite nanoparticles were synthesized by the citrate-gel auto-combustion method. Prepared powders were sintered at 500 °C for five hours in the air and characterized by XRD, TEM, and HR-TEM. X-ray diffraction (XRD) analysis showed the distorted rhombohedral structure of the ferrites. The surface morphology and particle size of the samples were observed by high-resolution transmission electron microscopy. The lattice parameter, crystalline size, X-ray density has been calculated from d-spacing. The perceived results can be explained depending on doping concentration. The temperature dependence of magnetic properties of Bi-Er nanoparticles was carried out by using a vibrating sample magnetometer (VSM). The magnetization as a function of applied field at ± 100 Oe was carried out at 3 and 300 K. Zero-field-cooled and (ZFC) and field-cooled (FC) magnetization measurements under an applied field of 100 Oe in the temperature range of 3-360 K. These measurements give the results of blocking temperature (Tb ) at around 350 K. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
- View/download PDF