INFLUENCE OF AL3+ DOPING ON THE STRUCTURAL AND ELECTRICAL PROPERTIES OF NANOCRYSTALLINE NI0.7MG0.3ALXFE2-XO4 FERRITES

Razia Nongjai¹*, Khalid Mujasam Batoo², Shakeel Khan^3
1Department of Applied Physics, Z.H. College of Engineering & Technology, Aligarh Muslim University Aligarh-202002, India
²Department of Applied Physics, Z.H. College of Engineering & Technology, Aligarh Muslim University Aligarh-202002, India
³Department of Applied Physics, Z.H. College of Engineering & Technology, Aligarh Muslim University Aligarh-202002, India
* Corresponding Author : razianongjai@gmail.com

Received : -     Accepted : -     Published : 15-06-2010
Volume : 1     Issue : 1       Pages : 1 - 3
Nanotechnol Nanosci 1.1 (2010):1-3

Conflict of Interest : None declared

Nanoparticles of Ni0.7Mg0.3 AlxFe2-xO4 (0.0 ≤ x ≤ 0.5) were prepared through sol-gel method to study the effect of Al3+ doping on structural and electrical properties using dielectric spectroscopy as a function of frequency at room temperature. The average particle size has been found between 25~30 nm. The dispersion in e’ , e’’, tanδ and σac with frequency shows that the dispersion is due to Maxwell-Wagner type of interfacial polarization in general and the hopping of charge between Fe2+ and Fe3+ as well as between Ni2+ and Ni3+ ions at B-sites.

[1] B. Viswanathan, V.R.K. Murthy, Ferrite Materials: Science and technology, Narosa Publishing House, 1990  
» CrossRef   » Google Scholar   » PubMed   » DOAJ   » CAS   » Scopus  

[2] Khalid Mujasam Batoo, Shalendra Kumar, Chan Gyu Lee, Alimuddin, Current Applied Physics 9 (2009) 826–832  
» CrossRef   » Google Scholar   » PubMed   » DOAJ   » CAS   » Scopus  

[3] H.E. Schaefer, H. Kisker, H. Kronmuller, R. Wurschum, Nanostruct. Mater. 6 (1995) 533  
» CrossRef   » Google Scholar   » PubMed   » DOAJ   » CAS   » Scopus  

[4] S.S. Bellad, B.K. Chougule, Mater. Chem. Phys. 66 (2000) 58.  
» CrossRef   » Google Scholar   » PubMed   » DOAJ   » CAS   » Scopus