Abstract
The evolution of Raman spectra in a wide range of temperatures that includes the ferroelectric transition point in lithium niobate single crystals is studied for polarization geometry X(ZZ)Y. In this geometry, the soft mode responsible for the phase transition distinguished by 1A1(TO)-type symmetry should appear in the spectra. Experimental studies show that the 1A1(TO) mode interacts resonantly with nonfundamental modes in the low-frequency region of the spectrum. Near the ferroelectric phase transition point, an isofrequency opalescence effect is observed that consists of an abrupt increase in Raman signal intensity at fixed frequencies near the excitation line.
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Abrahams, S.C., Reddy, J.M., and Bernstein, J.L., J. Phys. Chem. Solids, 1966, vol. 27, nos. 6–7, p.997.
Bergman, J.G., Ashkin, A., Ballman, A.A., et al., Appl. Phys. Lett., 1968, vol. 12, no. 3, p.92.
Schirmer, O.F., Thiemann, O., and Wohlecke, M.J., J. Phys. Chem. Solids, 1991, vol. 52, no. 1, p.185.
Schaufele, R.F. and Weber, M.J., Phys. Rev., 1966, vol. 152, no. 2, p.705.
Johnston, W.D., Jr. and Kaminov, I.P., Phys. Rev., 1968, vol. 168, no. 3, p. 1045.
Okamoto, Y., Wang, P.-C., and Scott, J.F., Phys. Rev. B, 1985, vol. 32, no. 10, p. 6787.
Surovtsev, N.V., Pugachev, A.M., Malinovsky, V.K., et al., Phys. Rev. B, 2005, vol. 72, no. 10, p. 104303.
Gorelik, V.S., Ivanova, S.V., Kucheruk, I.P., et al., Fiz. Tverd. Tela, 1976, vol. 18, no. 8, p. 2297.
Sidorov, N.V. and Palatnikov, M.N., Opt. Spectrosc., 2016, vol. 121, no. 6, p.842.
Gorelik, V.S., Tochilin, S.D., and Sushchinsky, M.M., J. Mol. Struct., 1986, vol. 143, p.83.
Gorelik, V.S. and Ivanova, S.V., Specific features of spectral intensity of scattered light near the point of phase transition in ferroelectric crystals, Preprint of Lebedev Phys. Inst., Moscow, 1984, no.3.
Ginzburg, V.L., Sov. Phys. Usp., 1963, vol. 5, p.649.
Ginzburg, V.L., Levanyuk, A.P., and Sobyanin, A.A., Usp. Fiz. Nauk, 1980, vol. 130, p.615.
Gorelik, V.S. and Ivanova, S.V., Kratk. Soobshch. Fiz., 1981, no. 11, p.18.
Gorelik, V.S., Izv. Akad. Nauk SSSR, Ser. Fiz., 1985, vol. 49, no. 2, p.282.
Shiozaki, Y. and Mitsui, T., J. Phys. Chem. Solids, 1963, vol. 24, no. 8, p. 1057.
Landau, L.D. and Lifshitz, E.M., Kvantovaya mekhanika (nerelyativistskaya teoriya) (Quantum Mechanics: Non-Relativistic Theory), Moscow: Nauka, 1989.
Lyubarskii, G.Ya., Teoriya grupp i ee primenenie v fizike (Group Theory and Its Application in Physics), Moscow: GIFML, 1958.
Landau, L.D., Zh. Eksp. Teor. Fiz., 1937, vol. 7, p.19.
Gorelik, V.S., Umarov, B.S., and Umarov, M., Phys. Status Solidi (b), 1983, vol. 120, no. 1, p. 131.
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Original Russian Text © V.S. Gorelik, A.Yu. Pyatyshev, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2018, Vol. 82, No. 3, pp. 344–349.
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Gorelik, V.S., Pyatyshev, A.Y. Raman Scattering on the Effective Soft Mode for Lithium Niobate Crystals. Bull. Russ. Acad. Sci. Phys. 82, 299–303 (2018). https://doi.org/10.3103/S1062873818030097
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DOI: https://doi.org/10.3103/S1062873818030097