| Citation | Distinguished for his contributions in the field of metallic magnetism. His elegant early experiments in Canada on the very slight temperature and pressure dependence of the de Haas-van Alphen frequency in iron provided important evidence for the theoretical interpretation of the saturation magnetisation of ferromagnetics at low temperatures. More recently he and his students at Cambridge have made important contributions to the understanding of weak ferromagnetics such as Ni3Al and nearly ferromagnetic metals such as Ni3Ga and Pr, by a combination of de Haas-can Alphen and neutron scattering studies. On the basis of a novel theory of the effect of magnetic fluctuations he has recently succeeded in obtaining a quantitative interpretation of both the magnetic and thermal properties of such materials. This theory has been well received at several international conferences. Lonzarich combines to an unusual degree high skill and originality in experiment (over techniques ranging from metallurgy to electronics and computing) with a profound theoretical grasp. He bubbles over with ideas for new experiments and new theoretical approaches and his drive and enthusiasm are likely to lead to continued successes. |