Thermal evolution of polar nanoregions identified by the relaxation time of electric modulus in the Bi1/2Na1/2TiO3 systemLaijun Liu, Xin Ma, Michael Knapp, Helmut Ehrenberg, Biaolin Peng, Liang Fang and Manuel HintersteinEPL, 118 4 (2017) 47001DOI: https://doi.org/10.1209/0295-5075/118/47001