Relaxation of Static Photoelasticity in Lead Germanate Crystals

  • N. M. Demyanyshyn H.V. Karpenko Physico-Mechanical Institute, Nat. Acad. of Sci. of Ukraine
Keywords: photoelasticity, photoelasticity relaxation, ferroelectrics


The relaxation of static photoelasticity in lead germanate (Pb5Ge3O11) crystals has been studied. The anisotropy of relaxation amplitudes and their anomalies near the phase transition point were revealed. The photoelastic relaxations and peculiarities in their temperature behavior are explained as manifestations of the piezocaloric mechanism.


T.S. Narasimhamurty, Photoelastic and Electro-Optic Properties of Crystals (Plenum Press, New York, 1981).

A. Feldman, D. Horowitz, R.M. Waxler, and M.J. Dodge, Optical Materials Characterization, Tech. Note 993 (Nat. Bureau of Standards, Washington, 1979).

S.S. Gorbach, A.V. Pakhnev, and M.P. Shaskolskaya, Photoelastic Properties of Crystals (TsNII Elektronika, Moscow, 1974) (in Russian).

A.A. Blistanov, V.S. Bondarenko, N.V. Perelomova, F.N. Strizhevskaya, V.V. Chkalova, and M.P. Shaskolskaya, Acoustic Crystals (Nauka, Moscow, 1982) (in Russian).

Yu. Vasylkiv, V. Savaryn, I. Smaga, I. Skab, and R. Vlokh, Appl. Opt. 50, 2512 (2011).

B.G. Mytsyk, A.S. Andrushchak, and Ya.P. Kost', Crystallography Reports 57, 124 (2012).

N.M. Demyanyshyn, Visn. Nats. Univ. Lviv. Politekh. Ser. Fiz. Mat. Nauky 768, 111 (2013).

G.A. Coquin, D.A. Pinnow, and A.W. Warner, J. Appl. Phys. 42, 2162 (1971).

D.K. Biegelsen, Tu Chen, and J.C. Zesch, J. Appl. Phys. 46, 941 (1975).

N.M. Demyanyshyn and B.G. Mytsyk, Phys. Solid State 44, 149 (2002).

B.G. Mytsyk, B.I. Gnatyk, and N.M. Dem'yanyshyn, Ukr. Fiz. Zh. 47, 1049 (2002).

B.G. Mytsyk and N.M. Demyanyshyn, Zh. Fiz. Dosl. 2, 139 (1998).

A.S. Sonin and A.S. Vasilevskaya, Electrooptic Crystals (Atomizdat, Moscow, 1971) (in Russian).

N.M. Demyanyshyn and B.G. Mytsyk, Phys. Solid State 55, 2501 (2013).

Yu.I. Sirotin and M.P. Shaskolskaya, Fundamentals of Crystal Physics (Imported Publ., Chicago, 1983).

B.G. Mytsyk, V.A. Romashko, and Ya.I. Shopa, Fiz. Tverd. Tela 35, 2272 (1993).

H. Iwasaki, Sh. Miyazawa, and N. Niizeki, J. Appl. Phys. 43, 4907 (1972).

G.R. Barsh, L.J. Bonczar, and R.E. Newnham, Phys. Status Solidi A 29, 241 (1975).

A.A. Bush and E.A. Popova, Phys. Solid State 46, 902 (2004).

How to Cite
Demyanyshyn, N. (2019). Relaxation of Static Photoelasticity in Lead Germanate Crystals. Ukrainian Journal of Physics, 60(3), 273.
Solid matter