JOHANNES GEORG BEDNORZ (born 16 May 1950) is a German physicist who, together with K. Alex Müller , discovered high-temperature superconductivity in ceramics , for which they shared the 1987 Nobel Prize in Physics .
* 1 Life and work * 2 Awards and honors * 3 References * 4 External links
LIFE AND WORK
Bednorz in 2013
Bednorz was born in Neuenkirchen ,
North Rhine-Westphalia , Germany
to elementary-school teacher Anton and piano teacher Elisabeth
Bednorz, as the youngest of four children. His parents were both from
As a child, his parents tried to get him interested in classical music, but he was more practically inclined preferring to work on motorcycles and cars. (Although as a teenager he did eventually learn to play the violin and trumpet.) In high school he developed an interest in the natural sciences, focusing on chemistry , which he could learn in a hands-on manner through experiments.
In 1968, Bednorz enrolled at the
University of Münster
After another visit in 1973, he came to Zurich in 1974 for six months to do the experimental part of his diploma work. Here he grew crystals of SrTiO3, a ceramic material belonging to the family of perovskites . Müller, himself interested in perovskites, urged him to continue his research, and after obtaining his master's degree from Münster in 1977 Bednorz started a PhD at the ETH Zurich (Swiss Federal Institute of Technology) under supervision of Heini Gränicher and Alex Müller. In 1978, his future wife, Mechthild Wennemer, whom he had met in Münster, followed him to Zürich to start her own PhD.
In 1982, after obtaining his PhD, he joined the IBM lab. There, he
joined Müller's ongoing research on superconductivity . In 1983,
Bednorz and Müller began a systematic study of the electrical
properties of ceramics formed from transition metal oxides , and in
1986 they succeeded in inducing superconductivity in a lanthanum
barium copper oxide (LaBaCuO, also known as LBCO). The oxide's
critical temperature (Tc) was 35 K, a full 12 K higher than the
previous record. This discovery stimulated a great deal of additional
research in high-temperature superconductivity on cuprate materials
with structures similar to LBCO, soon leading to the discovery of
compounds such as
In 1987, Bednorz and Müller were jointly awarded the Nobel Prize in Physics "for their important break-through in the discovery of superconductivity in ceramic materials". In the same year Bednorz was appointed an IBM Fellow .
AWARDS AND HONORS
* Thirteenth Fritz London Memorial Award (1987) * Dannie Heineman Prize of the Göttingen Academy (1987) * Robert Wichard Pohl Prize (1987) * Hewlett-Packard Europhysics Prize (1988) * Marcel Benoist Prize (1986) * Nobel Prize for Physics (1987) * James C. McGroddy Prize for New Materials (1988) * Minnie Rosen Award (1988) * Viktor Mortiz Goldschmidt Prize * Otto Klung Prize
* ^ A B C D E F G H I J K L M N J.