Born 1943 in Schroda. Study of physics at Braunschweig Technical Univ., doctorate Würzburg Univ. (1972), German Habilitation Würzburg Univ. (1978), Professor Munich Technical Univ. (1980-1984), Honorary Professor Stuttgart Univ. (1985), Director and Scientific Member at the Max Planck Institute for Solid State Research (since 1985).