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| | Articles of Volume : 1 Issue : 21 ( 12, December - 2013) | | | | 55 | The Structural And Macro Magnetic Properties Of Ni Mg Al Fe O Mixed Ferrite System | | By : G M Agnihotril , N R Shamkuwar And G K Bichile | | Abstract : The structural and bulk magnetic properties mixed spinel ferrite system
Ni Mg Al Fe O (x = x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) have been investigated by 0.5 0.5 x 2-x 4
means of X-ray diffraction, magnetization and ac susceptibility
measurements. The cation distribution determined through x-ray data are
supported by the magnetization and susceptibility measurements. The study
2+ 2+ 3+ 3+ has revealed the strong octahedral (B) site preference of Ni , Mg , Al & Fe as
2+ 3+ 2+ 3+ Ni > Al > Mg > Fe It is also found that the magnetic ordering in the system
is of collinear type and also indicated a strong A-B interaction even though a
nonmagnetic cation is substituted. The Curie temperature determined from ac
3+ susceptibility is found to decrease rapidly with small addition of Al . | | | | Author Profile | Full-Text PDF | |
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