Georg Bednorz

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Johannes Georg Bednorz
Fritz London Memorial Prize (1987)
Nobel Prize in Physics (1987)
EPS Europhysics Prize (1988)
Scientific career
FieldsPhysics
ThesisIsovalent and heterovalent ionic substitution in SrTiO3 (1982)
Doctoral advisorHeini Gränicher,
K. Alex Müller

Johannes Georg Bednorz (German pronunciation: [ˈɡeːɔʁk ˈbɛdnɔʁt͡s] ; 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.

Life and work

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 Silesia in Central Europe, but were forced to move westwards in turbulences of World War II.[1]

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.[1]

In 1968, Bednorz enrolled at the

IBM Zurich Research Laboratory as a visiting student. The experience here would shape his further career: not only did he meet his later collaborator K. Alex Müller, the head of the physics department, but he also experienced the atmosphere of creativity and freedom cultivated at the IBM lab, which he credits as a strong influence on his way of conducting science.[1][2]

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.[1][2]

In 1982, after obtaining his PhD, he joined the IBM lab. There, he joined Müller's ongoing research on

YBCO
(Tc 92K).

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".[4] In the same year Bednorz was appointed an IBM Fellow.

Awards and honors

References

  1. ^ a b c d e f g h i Georg Bednorz on Nobelprize.org Edit this at Wikidata, accessed 20 April 2020 including the Nobel Lecture, December 8, 1987 Perovskite-Type Oxides – The New Approach to High-Tc Superconductivity
  2. ^ a b "Georg Bednorz (1950–Present)". Pioneers in Electricity and Magnetism. Magnet Lab. Archived from the original on January 9, 2008.
  3. S2CID 118314311
    .
  4. ^ The Nobel Prize in Physics 1987. nobelprize.org

External links