Electronic Resource
Springer
JETP letters
65 (1997), S. 446-451
ISSN:
1090-6487
Keywords:
71.38.+i
;
77.80.−e
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A theory of self-localized states of free carriers near polarization fluctuations (fluctuons) in disordered ferroelectrics is developed. Calculations are carried out for the model disordered ferroelectric K1− x LixTaO3 (x≪0.05). The basic characteristics of the fluctuon — the energy and radius of the fluctuon state — are calculated as functions of the impurity dipole concentration and temperature. The theory predicts the appearence of stable fluctuon states in both the mixed ferroelectric-dipole-glass phase (a dipole glass is the electric analog of a spin glass) and the dipole-glass state of disordered ferroelectrics. The possible role of fluctuons in kinetic phenomena such as conductivity in these substances is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1134/1.567349
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