Beam fanning used to study thermal disorder and decay of polar structures in the ferroelectric relaxor M. Goulkov, O. Shinkarenko, T. Granzow, Th. Woike and M. ImlauEurophys. Lett., 66 1 (2004) 48-54DOI: https://doi.org/10.1209/epl/i2003-10185-0
