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Georgi Nadjakov

From Wikipedia, the free encyclopedia

Georgi S. Nadjakov
Георги Стефанов Наджаков
Gsnadjakov.jpg
Born26 December 1896
Dupnitsa, Bulgaria
Died24 February 1981 (1981-02-25) (aged 84)
Sofia
Resting placeCentral Sofia Cemetery
NationalityBulgarian
Alma materSofia University
Scientific career
FieldsPhysics
InstitutionsSofia University; Institute of Physics, Bulgarian Academy of Sciences

Georgi Nadjakov (also spelled Georgi Nadzhakov) (Bulgarian: Георги Наджаков) (26 December 1896 – 24 February 1981) was a Bulgarian physicist. He became a corresponding member of the Göttingen Academy of Sciences (1940) in Germany, member of the Bulgarian Academy of Sciences (1945) and member of the Russian Academy of Sciences (1958).

Sofia University sent him to specialize in the laboratories of Paul Langevin and Marie Curie in Paris, where he investigated photoelectricity for one year.

Georgi Nadjakov experimentally investigated photoconducting properties of sulphur. He prepared the permanent photoelectret state of matter for the first time and published his paper in 1937 [1] and 1938.[2] He called[citation needed] the electret discovered by Mototaro Eguchi in 1919, thermoelectret and the electret discovered by him in 1937, photoelectret.[3][4]
Photoelectrets were the most notable achievement of Georgi Nadjakov. Its practical application led to the invention of the photocopier by Chester Carlson some years later.

Honours

The study of Georgy Nadjakov is a Historic Site of the European Physical Society since 23 May 2014.[5]

External links

References

  1. ^ "Georgi Nadjakov, SUR UNE NOUVELLE ESPECE DE POLARISATION PERMANENTE DES DIELECTRIQUES". Comptes Rendus de l'Académie des Sciences de Paris. 204: 1865–1866. 1937.
  2. ^ "G. Nadjakov, UBER EINE NEUE ART VON ELEKTRETEN: PHOTOELEKTRETEN". Physikalische Zeitschrift. 39 (6): 226–227. 1938.
  3. ^ "Photoelectret State of Matter".
  4. ^ Kao, Kwan-Chi (2004). "5: Electrets". Dielectric Phenomena in Solids. Academic Press. p. 283. ISBN 978-0123965615. Retrieved 12 November 2013.
  5. ^ "Georgi Nadjakov Study – EPS Historic Site".
This page was last edited on 5 November 2021, at 06:37
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