Johannes Georg Bednorz

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Johannes Georg Bednorz
Johannes Georg Bednorz
Born	May 16, 1950 Neuenkirchen, North Rhine-Westphalia, Germany
Nationality	German
Fields	physics
Known for	high-temperature superconductivity
Notable awards	1987 Nobel Prize in Physics

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 kelvins, a full 12 K higher than the previous record.

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

[edit] References

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

• Bednorz, J Georg (2007), “A fascination with oxides. Interview by Fabio Pulizzi.”, Nature materials 6 (9): 621-2, 2007 Sep, PMID:17767174, doi:10.1038/nmat1997, <http://www.ncbi.nlm.nih.gov/pubmed/17767174> 
• Staub, U; Meijer, G I; Fauth, F & Allenspach, R (2002), “Direct observation of charge order in an epitaxial NdNiO3 film.”, Phys. Rev. Lett. 88 (12): 126402, 2002 Mar 25, PMID:11909484, <http://www.ncbi.nlm.nih.gov/pubmed/11909484> 
• Frey; Mannhart; Bednorz & Williams (1996), “Reply to "Comment on 'Mechanism of the electric-field effect in the high-Tc cuprates' "”, Phys. Rev., B Condens. Matter 54 (14): 10221, 1996 Oct 1, PMID:9984764, <http://www.ncbi.nlm.nih.gov/pubmed/9984764> 
• Lu; Schmidt; Cummins & Schuppler (1996), “Fermi surface and extended van Hove singularity in the noncuprate superconductor Sr2RuO4.”, Phys. Rev. Lett. 76 (25): 4845-4848, 1996 Jun 17, PMID:10061395, <http://www.ncbi.nlm.nih.gov/pubmed/10061395> 
• Bianchi; Dec; Kleemann & Bednorz (1995), “Cluster and domain-state dynamics of ferroelectric Sr1-xCaxTiO3 (x=0.007).”, Phys. Rev., B Condens. Matter 51 (14): 8737-8746, 1995 Apr 1, PMID:9977508, <http://www.ncbi.nlm.nih.gov/pubmed/9977508> 
• Frey; Mannhart; Bednorz & Williams (1995), “Mechanism of the electric-field effect in the high-Tc cuprates.”, Phys. Rev., B Condens. Matter 51 (5): 3257-3260, 1995 Feb 1, PMID:9979122, <http://www.ncbi.nlm.nih.gov/pubmed/9979122> 
• Gervais; Servoin; Baratoff & Bednorz (1993), “Temperature dependence of plasmons in Nb-doped SrTiO3.”, Phys. Rev., B Condens. Matter 47 (13): 8187-8194, 1993 Apr 1, PMID:10004831, <http://www.ncbi.nlm.nih.gov/pubmed/10004831> 
• Mannhart; Schlom; Bednorz & Müller (1991), “Influence of electric fields on pinning in YBa2Cu3O7- delta films.”, Phys. Rev. Lett. 67 (15): 2099-2101, 1991 Oct 7, PMID:10044335, <http://www.ncbi.nlm.nih.gov/pubmed/10044335> 
• Blazey; Müller; Bednorz & Berlinger (1987), “Low-field microwave absorption in the superconducting copper oxides.”, Phys. Rev., B Condens. Matter 36 (13): 7241-7243, 1987 Nov 1, PMID:9942475, <http://www.ncbi.nlm.nih.gov/pubmed/9942475> 
• Müller & Bednorz (1987), The Discovery of a Class of High-Temperature Superconductors., vol. 237 (published 1987 Sep 4), pp. 1133-1139, PMID:17801637, doi:10.1126/science.237.4819.1133, <http://www.ncbi.nlm.nih.gov/pubmed/17801637> 
• Mota; Pollini; Visani & Müller (1987), “Low-field magnetic relaxation effects in high-Tc superconductors Sr-La-Cu-O and Ba-La-Cu-O.”, Phys. Rev., B Condens. Matter 36 (7): 4011-4013, 1987 Sep 1, PMID:9943366, <http://www.ncbi.nlm.nih.gov/pubmed/9943366> 
• Bednorz; Müller; Riesterer & Reihl (1987), “Electronic structure of the high-Tc superconductor Sr0.2La1.8CuO4.”, Phys. Rev., B Condens. Matter 35 (16): 8804-8806, 1987 Jun 1, PMID:9941258, <http://www.ncbi.nlm.nih.gov/pubmed/9941258> 
• Bednorz; Müller & Takashige (1987), “Superconductivity in Alkaline Earth-Substituted La2CuO4-y.”, Science 236 (4797): 73-75, 1987 Apr 3, PMID:17759207, doi:10.1126/science.236.4797.73, <http://www.ncbi.nlm.nih.gov/pubmed/17759207> 
• Schlesinger; Greene; Bednorz & Müller (1987), “Far-infrared measurement of the energy gap of La1.8Sr0.2CuO4.”, Phys. Rev., B Condens. Matter 35 (10): 5334-5336, 1987 Apr 1, PMID:9940729, <http://www.ncbi.nlm.nih.gov/pubmed/9940729> 
• Müller; Takashige & Bednorz (1987), “Flux trapping and superconductive glass state in La2CuO4-y:Ba.”, Phys. Rev. Lett. 58 (11): 1143-1146, 1987 Mar 16, PMID:10034350, <http://www.ncbi.nlm.nih.gov/pubmed/10034350> 
• Gimzewski; Humbert; Bednorz & Reihl (1985), “Silver films condensed at 300 and 90 K: Scanning tunneling microscopy of their surface topography.”, Phys. Rev. Lett. 55 (9): 951-954, 1985 Aug 26, PMID:10032491, <http://www.ncbi.nlm.nih.gov/pubmed/10032491> 

Persondata
NAME	Bednorz, Johannes Georg
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

[edit] External links

• Pioneers in Electricity and Magnetism - Johannes Georg Bednorz National High Magnetic Field Laboratory

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