Hans Wondratschek

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Hans Wondratschek (born March 7, 1925 in Bonn ; † October 26, 2014 in Karlsruhe ) was a German physicist, crystallographer , mineralogist and professor at the Karlsruhe Institute of Technology (KIT).

Life

From 1945 Wondratschek studied mathematics and physics at the University of Bonn , where he received his doctorate in 1953. From 1953 to 1958 he was an assistant at the Max Planck Institute for Silicate Research in Würzburg , from 1958 to 1959 assistant at the Institute for Crystallography at the ETH Zurich and from 1959 to 1961 at the Mineralogical Institute at the University of Bonn. There he completed his habilitation in 1961 ( investigations into the crystal chemistry of lead apatites (polymorphites) ) in mineralogy and crystallography. Then he was from 1961 assistant and from 1962 lecturer at the Mineralogical Institute of the Albert-Ludwigs-Universität Freiburg . In 1964 he became full professor for mineralogy in Karlsruhe and director of the institute for crystallography. In 1991 he retired.

He is known for his group theoretical contributions to space groups and published, among other things, in the International Tables of Crystallography. Among other things, he classified the crystallographic space groups in four dimensions with Hans Zassenhaus and others, laid the foundations for a classification independent of the dimension and tabulated the group-subgroup relationships of the crystallographic space groups in three dimensions. He also determined the reciprocal grid vectors for the various space groups.

Wondratschek also worked experimentally (processes during the tempering of chrysotile asbestos and the tempering behavior of the Eifel- Sanidine and Madagascar orthoclase during conversion into high-pressure phases , crystal chemistry of lead apatites , for example of pyromorphite , water content and infrared absorption of natural quartz) . He worked as a mineralogist and crystallographer on an interdisciplinary basis with mathematicians, physicists and chemists.

In 2001 he received the Carl Hermann Medal and in 1987 the Friedrich Becke Medal . In 1989 he became a member of the German Academy of Sciences Leopoldina .

Fonts

  • with Harold Brown, Joachim Neubüser, Rolf Bülow, Hans Zassenhaus: Crystallographic groups of four dimensional space. Wiley 1978.
  • with Joachim Neubüser, Rolf Bülow: On crystallography in higher dimensions. (Part 1-3) In: Acta Crystallographica A. Volume 27, 1971, pp. 517-535 (especially 4 dimensions).
  • with Ulrich Müller: Symmetry relations between space groups. International Tables for Crystallography, Vol.A1, 1st edition Kluwer 2004 (731 pages), 2nd edition Wiley 2010
  • Ulrich Müller, using text templates from Hans Wondratschek and Hartmut Bärnighausen: Symmetry Relationships Between Related Crystal Structures: Applications of Crystallographic Group Theory in Crystal Chemistry, Vieweg / Teubner 2012
    • 2nd edition Symmetry relationships between crystal structures: applications of crystallographic group theory in crystal chemistry, Oxford University Press 2013
  • with MI Aroyo, J. M: Perez-Mato, C. Capillas, E. Kroumova, S. Ivantchev, G. Madariaga, A. Kirov: Bilbao Crystallographic Server: I. Databases and crystallographic computer programs. Z. Kristallogr. 221, 15-27 (2006), II. Representations of crystallographic point groups and space groups. Acta Cryst. A62, 115-128 (2006)
  • with MI Aroyo: Crystallographic viewpoints in the classification of space group representations. International Tables for Crystallography, Vol B Reciprocal Space, Chapter 1.5, 3rd edition 2008
  • with Theo Hahn: Symmetry of crystals: introduction to International tables of crystallography vol. A; Lecture notes provided to the summer school at Gjuletchitsa, Bulgaria, June 1994, Sofia: Heron Press 1994

literature

Web links

Individual evidence

  1. ^ Christel Dell, Danny Weber, Thomas Wilde: Deceased members and honorary patrons . List of members and honorary patrons who died between July 31, 2013 and June 30, 2015. In: Jörg Hacker (Ed.): German Academy of Natural Scientists Leopoldina . Structure and members. German Academy of Natural Scientists Leopoldina eV, Halle (Saale) 2015, p. 348 ( leopoldina.org [PDF; accessed September 25, 2016]).
  2. ^ Member entry by Hans Wondratschek at the German Academy of Natural Scientists Leopoldina , accessed on April 12, 2015.
personal data
SURNAME Wondratschek, Hans
BRIEF DESCRIPTION German physicist and crystallographer
DATE OF BIRTH March 7, 1925
PLACE OF BIRTH Bonn
DATE OF DEATH October 26, 2014
Place of death Karlsruhe