Dielectric constant was measured in sintered pellets of the compound with silver paste as electrodes using a Wayne-Kerr impedance analyzer. Note that the tan d peaks correspond to the points where k crosses the ordinate. What could be the explanation for this phenomenon? Contacts were ohmic as evidenced by same current in both forward and reverse applied voltages.
Thank you for the answer. Do you mean inductance of the sample or inductance from some other source ? Any idea on how I could measure either ?
Sample, wiring to sample can contribute to stray inductance especially at high frequencies.
AC(aiternative current)-type dielectric constant sometimes shows negative value.
The main reason may be attributed to cluster or wall.
cf) Hutiray, "charge density waves in solids" in Lecture notes in physics
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