A large magnetoinductance effect in La0.67Ba0.33MnO3

Naik, V. B.; Rebello, A.; Mahendiran, R.
August 2009
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p082503
Academic Journal
We report four probe impedance (Z=R+iX) of La0.67Ba0.33MnO3 at f=100 kHz under different dc bias magnetic fields. The ac resistance (R) exhibits a peak around TP=325 K which is accompanied by a rapid increase and a peak in the reactance (X) in a zero field. The magnetoreactance (ΔX/X) exhibits a sharp peak close to TP and its magnitude (≈60% in H=1 kG) exceeds that of the ac magnetoresistance (ΔR/R=5%). It is suggested that the magnetoreactance arises from changes in the self inductance of the sample rather than the capacitance.


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