Johannes Georg Bednorz

Johannes Georg Bednorz

German physicist
Date of Birth: 16.05.1950
Country: Germany

  1. Biography of Johannes Georg Bednorz
  2. Early Life and Education
  3. Research at IBM
  4. Discovery of High-Temperature Superconductivity
  5. Later Career

Biography of Johannes Georg Bednorz

Early Life and Education

Johannes Georg Bednorz is a German physicist and Nobel Laureate in Physics. He was born on May 16, 1950, in Neuenkirchen, Germany. Bednorz attended the Martinum Gymnasium in Emsdetten, where he completed his secondary education and preparatory course for university admission (Abitur).

In 1968, he enrolled at the University of Münster in Germany. However, due to feeling uncomfortable among the large number of students and failing the entrance exam for chemistry laboratory work, Bednorz switched his major to mineralogy. Under the guidance of Professor Wolfgang Goffman, he wrote his diploma thesis on synthetic perovskites in the field of crystallography.

Research at IBM

In the summer of 1972, Bednorz worked as an intern at the IBM Research Laboratory in Zurich, Switzerland. He returned for another internship the following year, and in 1974, he conducted experiments for his diploma thesis on the description and growth of perovskite crystals (SrTiO3) under the supervision of Hans-Jörg Scheel.

After spending another year in Münster, Bednorz began working on his dissertation at the "Solid State Physics Laboratory" at the Swiss Federal Institute of Technology in Zurich (ETH Zurich) under the supervision of Professor Heini Grüniher and Alexander Müller.

Discovery of High-Temperature Superconductivity

In 1982, Bednorz joined IBM and in 1983, together with Müller, began researching high-temperature superconductivity in ceramic materials based on copper oxides. They systematically tested new materials with the hope of finding superconductors. In 1986, they successfully discovered superconductivity in barium-lanthanum-copper oxide at a temperature of 35 K (-238 °C) - 12 K higher than any previously achieved superconducting temperature.

For their groundbreaking work, Bednorz and Müller were awarded the Nobel Prize in Physics in 1987. Their discovery revolutionized the field of superconductivity and opened up new possibilities for practical applications.

Later Career

After receiving the Nobel Prize, Bednorz continued his research in the field of condensed matter physics and superconductivity. He held various positions at IBM, including department manager and research staff member, until his retirement in 2015.

Bednorz's contributions to physics have been recognized with numerous awards and honors. He has been a member of several scientific academies and societies, and his research continues to inspire generations of scientists in the pursuit of understanding and harnessing the properties of superconductors.