Pyroelectric effect in crystals of m-dinitrobenzene

Abstract
Measurements of the pyroclectric properties of m-dinitrobenzene single crystals were carried out over the temperature range 120-320 K. A separation of the experimentally determined total pyroelectric coefficient into the primary and secondary ones was made. All these coefficients exhibit inversion of sign at 150 ± 25 K. A tentative explanation of the anomaly of the primary coefficient was suggested.