Dear Rajshree

The multi-component character of the sample is revealed in other systems. The presence of two dips in the derivative of the thermomagnetic curve in Cu-substituted M-type is evident and is associated with phase separation and magnetic enhomogeneity as described in our recent article (attached). Also, the multi-component character in Y-type hexaferrites is evident in the thermomagnetic curves of samples showing M- and Y-type mixture as discussed in a recent article (attached). I hope this is helpful.

The difference of the particle size in samples prepared with different surfactants could indicative of the effect of the different surfactants in promoting crystallization in the sample.   

Respected Prof. Sami,

thanks for your reply and comments too. I will read attached pdf articles and will try to analyse our results. Complex and multi-component character of the samples are difficult to understand. Yes definitely  some hint and suggessions are very useful

with best regards

Rajshree