His primary research supervisor was Professor Alan Carrington, FRS although he also worked with Professor Leslie Orgel, FRS and Professor Christopher Longuet-Higgins FRS. On leaving Cambridge he moved to Zürich where he worked at the Varian Research Laboratories as the ESR spectroscopist.

Research interests
Since formally retiring in 2004 Geoffrey has maintained an active research programme, both experimental and theoretical, in the field of thermotropic liquid crystals.