Bednorz

Johannes Georg Bednorz is a German physicist and, along with Karl Alexander Müller, a pioneer in the field of superconductivity. In 1986, while at the IBM Zürich Research Laboratory, Bednorz and Müller discovered superconductivity in a ceramic copper oxide (cuprate) material, La2−xBaxCuO4 (lanthanum barium copper oxide). The material exhibited a critical temperature around 35 kelvin, higher than any previously known superconductor, and the result opened a new research area in high-temperature superconductivity.

Their breakthrough sparked extensive exploration of cuprate materials and unconventional superconductivity, driving rapid progress in the understanding of how superconductivity can occur at relatively high temperatures compared with earlier materials. The significance of their work was recognized with the Nobel Prize in Physics in 1987, which Bednorz shared with Müller for the discovery.

In the years following the Nobel Prize, Bednorz continued his career in academia and research, holding positions and collaborating at institutions in Germany and Switzerland. His work contributed to condensed matter physics and materials science, with a focus on superconductivity and related quantum phenomena.