“…It can be explained by the fact that for minimizing electrostatic energy of the sample a polydomain configuration is more favorable than a monodomain particle (Kretschmer & Binder, 1979). Discussing these effects one should also remember that without the poling dc field (so, in the conditions of transmittance measurements of SbSI ethanogel ) the polarization of bulk SbSI was smaller than 0.025 C/m 2 (Imai et al, 1966).…”
Section: Temperature Dependence Of Optical Energy Gap and Spontaneousmentioning
“…It can be explained by the fact that for minimizing electrostatic energy of the sample a polydomain configuration is more favorable than a monodomain particle (Kretschmer & Binder, 1979). Discussing these effects one should also remember that without the poling dc field (so, in the conditions of transmittance measurements of SbSI ethanogel ) the polarization of bulk SbSI was smaller than 0.025 C/m 2 (Imai et al, 1966).…”
Section: Temperature Dependence Of Optical Energy Gap and Spontaneousmentioning
“…-40 °C because this phenomenon seems to originate from extrinsic conditions and has not been necessarily confirmed by other investigators (for example, Imai et al, 1966;Betsa and Popik, 1977).…”
Section: Temperature Variation Of Atomic Displacementsmentioning
confidence: 82%
“…It should be pointed out that for the case of displacive type phase transition σ does not mean the order parameter but still has a meaning of a variable to be refined in least squares calculations. The value of the spontaneous polarization at 1.3 °C (Imai et al, 1966) predicts σ for the order-disorder model to be about 0.7; i.e. x t = 0.85 and x 2 = 0.15.…”
The accurate atomic distances and angles of ferroelectric SbSI at 1.3 °C are shown together with the temperature variation of the short atomic distances. Displacive type phase transition is concluded on the basis of the split-atom method. The temperature dependence of the atomic positions in the ferroelectric phase is estimated.
“…Dierent optical energy gaps in ferroelectric and paraelectric phases as well as light scattering on the domain walls allow to observe ferroelectric domains in ferroelectric materials e.g. in SbSI [7,8]. In this paper the mobility of ferroelectric domains in SbSI has been determined for the rst time using optical transmittance near the Curie temperature (T C = 293 K [4]).…”
Dierent optical energy gaps in ferroelectric and paraelectric phases as well as light scattering on domain walls allow to observe ferroelectric domains in antimony sulfoiodide (SbSI) near the Curie temperature. Mobility
8.11(44)×10−8 m 2 /(V s) of ferroelectric domain walls under external electric eld has been determined along c-axis of SbSI single crystals using optical transmittance microscopy.
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