Abstract
Polycrystalline Sm3(Fe1−xAlx)5O12 (x =0, 0.1, 0.2, 0.3, 0.4) samples were prepared in single phase form. Rietveld analysis of X-ray diffraction patterns shows that samples crystallize in cubic structure (space group: $$Ia\overline{3} d$$ ) with a systematic decrease in lattice constant with Al doping. Magnetization measurements show that all these samples exhibit ferrimagnetic transition whose transition temperature (Tc) decreases from 562 K for x =0 to 350 K for x =0.4 due to the dilution of Fe3+–O–Fe3+ networks. In addition to that they undergo spin reorientation transition at TSR~ 70 K with considerable magnetic irreversibility below TSR. Interestingly the x =0.4 sample undergoes magnetic compensation at 26 K. Improvement of frequency response of dielectric constant ( $$\varepsilon^{\prime}$$ ) and loss tangent (tan $$\delta$$ ) is observed upon Al doping in a wide frequency range of 102–109 Hz.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
