He was born as son of Conrad Heusler the owner of the Isabellenhütte
Dillenburg, a non-ferrous metal works. He studied at the
University of Bonn and
University of Berlin and was awarded with his Ph.D. in 1887 in Berlin. After working at the
University of Göttingen he did his habilitation in Berlin 1894. In 1901 he discovered the
ferromagnetic intermetallics, now known as
Heusler phases, and did some research in collaboration with the
University of Marburg. Due to patent controversies it took until 1903 for the publication of the results. From 1902 he was head of the Isabellenhütte. ==References==