Investigating the formation and magnetic properties of the Dy0.75Fe1.25O3 orthoferrite prepared by sol-gel method |
| |
| Authors: | Jian-Jun Li Jun-Gang Cao |
| |
| Institution: | a Centre for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, People's Republic of China
b College of Chemistry, Jilin University, Changchun 130012, People's Republic of China |
| |
| Abstract: | In this paper, the Dy0.75Fe1.25O3 orthoferrite nanoparticles were synthesized successfully by sol-gel method. Dy0.75Fe1.25O3 orthoferrite nanoparticles are obtained by calcining the flakes at 600 and 700 °C. The magnetic properties of the different samples are investigated using Quantum Design MPMS SQUID magnetometer and MS-500 Mössbauer spectrometer. Magnetic phase γ-Fe2O3 coexists in the samples calcined at 600 °C and orthoferrite phase is completely recovered in the samples calcined at 700 °C. Although excessive Fe3+ ions were introduced, none of these iron spins couple magnetically with Dy3+ ions. |
| |
| Keywords: | 75 50 Tt 76 30 Kg |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
