Hysteresis in the β–α phase transition in silver iodide

in the $\beta$–$\alpha$ phase transition in silver iodide},
  author={Jon Binner and Georgios Dimitrakis and Duncan M. Price and Mike Reading and B. Vaidhyanathan},
  journal={Journal of Thermal Analysis and Calorimetry},
AbstractThe nature of the β to α phase transition in silver iodide was investigated by conventional and modulated temperature DSC and dielectric property measurements. On cooling, the high temperature phase remained stable 2.5°C below its normal transition temperature even at a very slow cooling rate 0.2°C h–1. Dielectric property measurements under conventional and microwave heating suggested an anomalous effect of the latter on the β to α phase transition in this material. 

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