Annotation
An effect of spontaneous fluctuation of the dispersion frequency was detected during investigations of the dielectric dispersion of a BaTiO$_3$ single crystal while measuring under the electric field only. A decrease in the dispersion frequency by three orders of magnitude and its subsequent return to the previous value was observed. A possible mechanism of this phenomenon is suggested, which involves the dynamics of the screening process.
Received: 2016 April 11
Approved: 2016 October 12
PACS:
77.22.-d Dielectric properties of solids and liquids
77.84.Dy Niobates, titanates, tantalates, PZT ceramics, etc.
77.84.Dy Niobates, titanates, tantalates, PZT ceramics, etc.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
N.D. Gavrilova$^1$, I.A. Malyshkina$^1$, V.K. Novik$^2$
$^1$Department of Polymers and Crystal Physics;
$^2$Department of General Physics and Wave Phenomena, Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia.
$^1$Department of Polymers and Crystal Physics;
$^2$Department of General Physics and Wave Phenomena, Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia.
Science News of the Faculty of Physics, Lomonosov Moscow State University
This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.