Abstract
The elastic, ferroelectric, and transport properties of congruent lithium niobate and lithium tantalate crystals are studied in the temperature range of 77–450 K, depending on the conditions for recovery annealing. Significant changes in the elastic moduli and electrical conductivity that correlate with an increase in the displacement of the off-center Nb5+ (Ta5+) ions along the trigonal \(\overline C \) axis of the oxygen octahedra NbO6 (TaO6) are found in the interval 120 to 300 K as a result of more detailed studies. The attenuation of acoustic waves is suppressed as the temperature falls, which can be explained by an increase in the degree of ordering of NbO6 (TaO6) clusters. It may be assumed that the strong change in electrical conductivity correlates with the concentration of point nanoscopic defects (antisite defects Nb 5+Li (Ta 5+Li ), coupled polarons Nb 4+Li (Ta 4+Li ), and bipolarons).
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Volk, T. and Wohlecke, M., Lithium Niobate: Defects, Photorefraction and Ferroelectric Switching, Berlin: Springer, 2008.
Ferroelectric Crystals for Photonic Applications, Ferraro, P., Grilli, S., and De Natale, P., Eds., Berlin: Springer, 2009.
Shur, V.Y., in Handbook of Advanced Dielectric, Piezoelectric and Ferroelectric Materials: Synthesis, Properties and Applications, Ye, Z.-G., Ed., Cambridge: Woodhead, 2008, p.622.
Malovichko, G., Grachev, V., and Schirmer, O., Appl. Phys. B, 1999, vol. 68, no. 5, p.785.
Veithen, M. and Ghosez, Ph., Phys. Rev. B, 2002, vol. 65, no. 21, p. 214302.
Chaib, H., Otto, T., and Eng, L.M., Phys. Rev. B, 2003, vol. 67, no. 17, p. 174109.
Polinger, V., Garcia-Fernandez, P., and Bersuker, I.B., Phys. B, 2015, vol. 457, p.296.
Toyoura, K., Ohta, M., Nakamura, A., and Matsunaga, K., J. Appl. Phys., 2015, vol. 118, no. 6, p. 064103.
Akhmadullin, I.Sh., Golenishchev-Kutuzov, V.A., Migachev, S.A., and Mironov, S.P., Phys. Solid State, 1998, vol. 40, no. 7, p. 1190.
Yatsenko, A.V., Palatnikov, M.N., Sidorov, N.V., Pritulenko, A.S., and Evdokimov, S.V., Phys. Solid State, 2015, vol. 57, no. 8, p. 1547.
Harhira, A., Guilbert, L., Bourson, P., and Rinnert, H., Appl. Phys. B, 2008, vol. 92, no. 4, p.555.
Garcia-Lechuga, M., Siegel, J., Hernandez-Rueda, J., and Solis, J., J. Appl. Phys., 2014, vol. 116, no. 11, p. 113502.
Meyer, N., Nataf, G.F., and Granzow, T., J. Appl. Phys., 2014, vol. 116, no. 24, p. 244102.
Golenishchev-Kutuzov, A.V., Golenishchev-Kutuzov, V.A., Kalimullin, R.I., and Semennikov, A.V., Bull. Russ. Acad. Sci.: Phys., 2017, vol. 81, no. 3, p.282.
Golenishchev-Kutuzov, A.V., Golenishchev-Kutuzov, V.A., Kalimullin, R.I., and Semennikov, A.V., Phys. Solid State, 2017, vol. 59, no. 2, p.304.
Scrymgeour, D.A., Gopolan, V., Itagi, A., et al., Phys. Rev. B, 2005, vol. 71, no. 18, p. 184110.
Golenishchev-Kutuzov, A.V., Golenishchev-Kutuzov, V.A., Kalimullin, R.I., and Semennikov, A.V., J. Low Temp. Phys., 2016, vol. 185, nos. 5–6, p. 558.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.V. Golenishchev-Kutuzov, V.A. Golenishchev-Kutuzov, R.I. Kalimullin, A.V. Semennikov, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2018, Vol. 82, No. 5.
About this article
Cite this article
Golenishchev-Kutuzov, A.V., Golenishchev-Kutuzov, V.A., Kalimullin, R.I. et al. Effect of Nanoscale Defects on the Physical Properties of Lithium Niobate and Lithium Tantalate Crystals. Bull. Russ. Acad. Sci. Phys. 82, 558–560 (2018). https://doi.org/10.3103/S1062873818050118
Published:
Issue Date:
DOI: https://doi.org/10.3103/S1062873818050118