Klaus Dransfeld

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Klaus Dransfeld (born August 12, 1926 in Berlin ) is a German experimental physicist .

life and work

Dransfeld grew up in Cologne and studied (after being a prisoner of war until 1945) at the University of Cologne, physics, mathematics and chemistry. In 1952 he received his doctorate under Clemens Schaefer at the University of Cologne (on the determination of photoelectric constants in optical glasses using a dynamic process ). He then worked as an assistant in Cologne and in 1955/6 as a post-doc at the Clarendon Laboratory at Oxford University , and from 1957 to 1960 he was at Bell Laboratories in Murray Hill, New Jersey , where he worked on ultrasound. In 1959 he spent six months at the Catholic University of Rio de Janeiro and in 1960 as an associate professor at the University of California, Berkeley . In 1965 he became a professor at the Technical University of Munich and from 1973 he was director of the newly founded Franco-German high-field magnet laboratory in Grenoble (operated by the Max Planck Society on the German side and the CNRS on the French side ). From 1977 he was then director at the Max Planck Institute for Solid State Research in Stuttgart . From 1982 he was a professor at the University of Konstanz , where he was honorary professor from 1975 and where he retired in 1994. From 1984 to 1990 he was the spokesman for the Collaborative Research Center “Microscopic and Structural Processes of Atomic and Molecular Movement”.

Dransfeld is known for his work on ultrasound at very high frequencies, especially for use in microscopy with ultrasound waves ("hypersonic microscopy"). In solid state physics, his Grenoble working group succeeded in aligning biological macromolecules (e.g. DNA) very effectively with strong magnetic fields. Another focus of his group was the investigation of the abnormal behavior of all glasses at low temperatures. The behavior of semiconductors in strong magnetic fields was also investigated at the high-field laboratory in Grenoble, and in this area Klaus von Klitzing succeeded in his well-known discovery of the quantum Hall effect around 1979 . In addition, Dransfeld also wrote two textbooks on experimental physics and electrodynamics with Paul Kienle and others, which first appeared in 1974.

In 1989 he received the Franco-German Gentner-Kastler Prize ("For his fundamental work on the generation of hypersonic waves and their application to the study of solids and quantum liquids"). He is honorary doctor of the Universities of Grenoble (1993) and the University of Augsburg (1996), as well as honorary professor of the Tongji University (Shanghai 1989) and the Nanking University (1989). Dransfeld has been a member of the Heidelberg Academy of Sciences since 1988 and a member of the Leopoldina since 1994 . From 1976 to 1979 Klaus Dransfeld was chairman of the Physics Committee of the German Research Foundation .

Fonts

  • With Paul Kienle and Georg Michael Kalvius : Physics I - Mechanics and Warmth , Oldenbourg Wissenschaftsverlag, 10th, revised. Edition 2006 (before that volume 1 as "Newtonian and relativistic mechanics", ISBN 978-3-486-57810-2 )
  • With Paul Kienle: Physics II - Electrodynamics and special relativity theory , Oldenbourg Wissenschaftsverlag, 7th edition 2008 (before that, Vol. 2 as "Electrodynamics"), ISBN 978-3-486-58598-8

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Web links

Remarks

  1. ↑ Birthday party for Klaus Dransfeld. University of Konstanz press office, November 9, 2001, archived from the original on November 1, 2009 ; Retrieved June 20, 2013 .
  2. ↑ Until his retirement in 1999, Kienle was a colleague of Dransfeld as a professor at the Technical University of Munich
  3. ^ Klaus Dransfeld. with picture. Member entry at the Heidelberg Academy of Sciences , accessed on July 4, 2016 .
  4. ↑ Member entry by Klaus Dransfeld at the German Academy of Natural Scientists Leopoldina , accessed on July 4, 2016.
personal data
SURNAME Dransfeld, Klaus
BRIEF DESCRIPTION German physicist
DATE OF BIRTH August 12, 1926
PLACE OF BIRTH Berlin