Exploring the structural and magnetic trends in Ba0.9Sm0.1Fe12−xAlxO19 M-type Hexaferrites. (1st January 2023)

• Record Type: Journal Article
• Authors: Asif, Sana Ullah; Ranjha, Qasim Ali; Ghori, Ubaid-ur-Rehman; Nisa, Mehrun; Ahmad, Muhammad Saeed; Bukhari, Mehak; Jabeen, Nawishta; Hussain, Ahmad; Hassan, NajamUl; Ahmed, Fahim
• Is Part Of: Physica scripta. Volume 98:Number 1(2023)
• Publication Date: 2023-01-01
• Subjects: M type hexa ferrites -- coercivity -- magnetic properties -- x ray diffraction -- permanent magnets; Physics -- Periodicals; 530.05
• DOI: 10.1088/1402-4896/acac54
• Languages: English
• ISSNs: 0031-8949

Abstract

Abstract: The current study describes the structural and magnetic properties of Ba0.9 Sm0.1 Fe12− x Al x O19 ( x = 0.0, 0.5, 1.0, 2.0, 3.0) M-type hexaferrites. The conventional ceramic route was implied to prepare all the nominal samples. Morphological analysis suggested the non-presence of secondary phases as well as the formation of the hexaferrites material. X-ray Diffraction technique was used for structural analysis from which microstructural parameters are calculated and discussed. Magnetic properties are measured at room temperature. The saturation magnetization (Ms) and coercivity (Hc) values show a cyclic and converse trend for synthesized samples. Firstly, a decrease in Ms and an increase in Hc was observed up to intermediate dopant incorporation and becomes converse for higher doping levels. The maximum coercivity and minimum magnetization are observed for Ba0.9 Sm0.1 Fe11 Al1 O19 . The c/a and Mr/Ms ratio suggest the formation of perfect M-type hexaferrites. This work suggests that synthesized material is a good option for magnetic applications e.g., transformer and inductor cores, microwave devices, recording heads, and magnetic shielding.