Why Ni doped Barium Titante ceramics show diamagnetic even though it is a TM ion?

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P. Grima Gallardo

It is possible that doping is not enought to change the mean characteristic of the matrix compound. Moreover, because Ni is not strong ferromagnet. Try to amplify the region near H=0 and seeing if there is a little (may be very little) magnetic component (deviation of the linear behavior).

Best regards,

Pedro