Home :: History of Research :: Research in the physics of pyro-, piezo- and ferroelectrics
Research in the physics of pyro-, piezo- and ferroelectrics.
Research in this field resulted in the discovery of several hundreds of
new crystalline piezoelectric and several dozens of new pyroelectric
substances and in the establishment of the symmetry and crystal chemistry
criterion of the manifestation of these properties in crystals [1]. The
research at the Chair led to the discovery of the ferroelectric behavior
of the proustite, stibiotantalbite and KTiOPO
4 , which are
representatives of new structural types. The first incommensurately
modulated phases among ferroelectrics,
(NH
4)
2BeF
4
and K
2Fe(CN)
4 \mathaccent "705F 3H
2O,
were obtained, as well as the specific anomalous ferroelectric behavior
of some liquid crystals. The results of complex investigations of the
anomalous temperature behavior of the above- mentioned and some other
crystals during phase transitions and their theoretical description within
the framework of the Landau theory of phase transitions were summarized in
[2-4].
References:
- V.A.Koptsik and I.S.Res. On the one-hundred anniversary of the Pierre Curie Principle. Usp. Fiz. Nauka (Soviet Physics - Uspekhi, 1984, vol. )
- B.A.Strukov and A.P. Levanuk. Physical Basis of Ferroelectric Phenomena in Crystals. - Moscow: Nauka, 1983 (Second Edition, 1995)
- V.K.Novik, N.D.Gavrilova and N.B.Feldman. Pure Electric Transformator Devices.- Moscow: Soviet Radio, 1979, p. 172
- N.D.Gavrilova, M.N.Danilycheva and V.K.Novik. Piroelectricity.- Moscow: Znanie, 1989, p.62
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