Abstract
The effect of uniaxial stresses applied along the principle crystallographic directions on the dispersion and temperature dependences of birefringence of LiNH4SO4 crystals is studied. The anomalies of the temperature dependence of birefringence near 220 K have been observed, and their position is shown to depend on the magnitude and direction of crystal uniaxial compression. The spectral and temperature dependences of combined piezo-optic coefficients π 0 im of these crystals are investigated. It is demonstrated that these coefficients have different signs, are characterized by significant dispersion, and weakly change with temperature; they also have equal absolute values in the vicinity of the isotropic point.
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References
V. Stadnik and V. Gaba, Refractometry of Dielectric Crystals with Incommensurate Phases (Liga-Press, Lviv, 2010).
V. I. Stadnik, N. A. Romanyuk, and R. S. Brezvin, Electronic Polarizability of Ferroics (Izd-vo LNU, Lviv, 2013) [in Russian].
M. Polonska, Phase Transitions 74, 409 (2001).
A. Pietraszko and K. Lukaszewicz, Acta Phys. Polon. 66, 2057 (1992).
P. E. Tomaszewski, Solid State Commun. 81(4), 333 (1997).
V. I. Stadnyk, R. S. Brezvin, and P. V. Savchuk, Opt. Spektrosk. 113 (3), 1 (2012) Opt. Spectrosc. 113(3), 288 (2012).
N. A. Romanyuk, Workshop on Crystal Optics and Crystal Physics (Izd-vo LNU, Lviv, 2012).
S. V. Mel’nikova, A. V. Kartashev, V. A. Grankina, and I. N. Flerov, Phys. Solid State 45(8), 1572 (2003).
M. Polonska, B. Hilcher, and J. Baran, J. Mol. Struct. 325, 105 (1994).
S. V. Melnikova, A. D. Vasiliev, V. A. Grankina, et al., Ferroelectrics 170, 139 (1995).
T. Narasimhamurty, Photoelastic and electrooptic properties of crystals (Plenum, New-York, 1981; Mir, Moscow, 1984).
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Original Russian Text © V.Yo. Stadnyk, R.S. Brezvin, M.Ya. Rudish, P.A. Shchepanskii, V.Yu. Kurlyak, 2015, published in Kristallografiya, 2015, Vol. 60, No. 3, pp. 435–439.
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Stadnyk, V.Y., Brezvin, R.S., Rudish, M.Y. et al. Piezo-optic properties of LiNH4SO4 crystals. Crystallogr. Rep. 60, 388–392 (2015). https://doi.org/10.1134/S106377451502025X
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DOI: https://doi.org/10.1134/S106377451502025X