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Johannes Georg Bednorz

German physicist (1950–)

Bednorz was educated at the Federal Institute of Technology, Zurich, where he gained his PhD in 1982. He immediately joined the staff of the IBM Research Center in Zurich.

Here he was invited by his senior colleague, Alex Muller, to collaborate in a search for superconductors with higher critical temperatures. Little progress had been made in this area for a decade and, as a young unknown scientist, Bednorz's decision to work in such an unpromising field appeared to many to be somewhat rash. Success, however, came relatively quickly and in 1986 Bednorz and Muller found a mixed lanthanum, barium, and copper oxide that had a critical temperature of 35 K (–238°C), which was significantly higher than that of any other superconductor known at the time. Their work was quickly recognized and in 1987 Muller and Bednorz were awarded the Nobel Prize for physics.

 
 
Columbia Encyclopedia: Bednorz, Johannes Georg
(yōhän'əs gāôrkh' bĕd'nôrts) , 1950–, German physicist. After earning his doctorate from the Swiss Federal Institute of Technology, he began (1982) work at the IBM Zürich Research Laboratory with Karl Alex Müller. In 1983 they discovered superconductivity in a ceramic fragment at temperatures much higher than had been previously thought possible. Their discovery made possible applications in power lines, generators, and computers. In 1987, Bednorz and Müller were awarded the Nobel Prize in Physics.
 
Wikipedia: Johannes Georg Bednorz

Johannes Georg Bednorz (May 16, 1950) is a German physicist who shared the 1987 Nobel Prize in Physics for work in high-temperature superconductivity. He was born in Neuenkirchen, North Rhine-Westphalia, Germany to Anton and Elisabeth Bednorz.

In 1968, Bednorz started his studies in Mineralogy at the University of Münster.

In 1982, Bednorz was hired by IBM to work in their Zurich laboratories. There, he joined Karl Alexander Müller's ongoing research into superconductivity.[1]

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 barium lanthanum copper oxide (BaLaCuO, also known as LBCO); the oxide's critical temperature was 35 K, a full 12 kelvins higher than the previous record.

In 1987, Bednorz and Müller were jointly awarded the Nobel Prize in Physics.

References

  1. ^ J. G. Bednorz and K. A. Müller (1986). "Possible highTc superconductivity in the Ba−La−Cu−O system". Z. Physik, B 64: 189-193. DOI:10.1007/BF01303701. 


Persondata
NAME Barros, Renz Angelo
ALTERNATIVE NAMES
SHORT DESCRIPTION Physicist
DATE OF BIRTH May 16, 1950
PLACE OF BIRTH Neuenkirchen, North Rhine-Westphalia, Germany
DATE OF DEATH
PLACE OF DEATH



 
 

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Scientist. A Dictionary of Scientists. Copyright © Market House Books Ltd 1993, 1999, 2003. All rights reserved.  Read more
Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Johannes Georg Bednorz" Read more

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