Anghel, Catalin Anton Marion2017-03-072017-03-071996http://hdl.handle.net/10539/22166A dissertation submitted to the faculty of science, university of Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Master of Science. Johannesburg 1996The purpose of this investigation was to study the supersonic phase transition in pure and doped LaF3 crystals. : [Abbreviated Abstract. Open document to view full version]enThesis