| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7991835 | Journal of Alloys and Compounds | 2018 | 25 Pages |
Abstract
The magnetic properties of conical magnetic structure (CMS) hexaferrites BaFe10.2Sc1.8O19 (BFSO) and SrFe10.2Sc1.8O19 (SFSO) have been investigated under different magnetic fields and different temperatures. Results show that the single phase CMS hexaferrites BFSO and SFSO can be obtained as the sintering temperature exceeds 1473â¯K. Both the coercivity Hc and remanent magnetization Mr of the CMS BFSO and SFSO decrease sharply with increasing temperature below 100â¯K, and they become very small and almost invariant when the temperature exceeds 100â¯K. For both BFSO and SFSO, the field-cooling and zero-field-cooling curves differ greatly at low temperatures and resemble at high temperatures. A magnetic transition temperature Tz2 from noncollinear CMS to collinear ferrimagnetic structure is observed in both BFSO and SFSO with BFSO having higher Tz2 than that of SFSO. Moreover, the Tz2 decreases with increasing the magnetic field in both samples generally.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Weihu Zhang, Qishan Zhu, Rujun Tang, Hao Zhou, Jianmin Zhang, Jiaxing Jiang, Hao Yang, Xiaodong Su,