Hermann pupil

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Hermann Schüler (born July 24, 1894 in Posen , † July 5, 1964 in Göttingen ) was a German experimental physicist.

Schüler had received his doctorate from Friedrich Paschen in Tübingen , whose assistant he was from 1920 to 1924 and whose son-in-law he was. He had been Erwin Freundlich's employee (observer) at the Potsdam-Babelsberg observatory since 1924 and also had hopes of becoming Freundlich's successor at the solar institute in the Einstein Tower , which then became Paul ten Bruggencate . Since 1926 he had completed his habilitation in Berlin and also gave lectures in Berlin as an extraordinary (non-civil servant) professor.

Schüler had further developed the hollow cathode of his teacher Paschen as a light source for precision observations in atomic physics (among other things by cooling with liquid air, 1928). In Germany he was one of the pioneers in determining the magnetic moments of the nuclei from hyperfine structure observations. He worked with Hartmut Kallmann from the Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry in Berlin. In 1931 he determined the nuclear moment of thallium and in the same year he and his British student Keystone found an isotope shift in the thallium spectrum. He also spoke about this at the ETH Zurich in 1931 in the presence of Wolfgang Pauli (who had dealt with the theory).

In systematic investigations of the atomic spectra with Theodor Schmidt in Potsdam, he showed the existence of electrical nuclear quadrupole moments, an indication of the deformation of the nuclei through collective movements.

In 1937 he went to the Kaiser Wilhelm Society in Berlin, where his salary was paid by IG Farben, as was the case at the Potsdam observatory (on the initiative of Carl Bosch ). From 1950 he was a scientific member and head of the research center for spectroscopy of the Max Planck Society.

family

He was married to Emma Henriette Paschen (1897–1975).

Web links

Individual evidence

  1. Physical Reports, Volume 44, Page 1056, F. Vieweg and Sohn, 1965
  2. He was later divorced from her and raised two children alone, which worsened relations with Paschen
  3. The first observations were made in 1927 by Samuel Goudsmit and Ernst Back , an employee of Paschen in Tübingen. In the 1930s, Schüler soon faced competition from Hans Kopfermann
  4. Kallmann, pupil hyperfine structure and atomic nucleus , results of the exact natural sciences, vol. 11, 1932, continued by Kopfermann 1936 in vol. 15
  5. ^ Journal of Physics Volume 70, 1932
  6. Schüler, Keystone, Naturwissenschaften, Vol. 19, 1931, p. 320.
  7. Schüler, Schmidt Zeitschrift für Physik Vol. 94, 1935, p. 457.