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Phase transition in a NaBi(MoO4)2 crystal: Acoustic investigations

  • Lattice Dynamics and Phase Transitions
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Abstract

This paper reports on the results of acoustic investigations of a NaBi(MoO4)2 crystal in the temperature range from 20 to 70°C. The temperature dependences of the velocity of longitudinal ultrasonic waves propagating along the crystallographic axes z and x are measured at a frequency of 4 MHz. The results obtained demonstrate that a structural phase transition occurs in the NaBi(MoO4)2 crystal at a temperature of 309 K. The experimental findings are consistent with the assumption that the observed phase transition is either a second-order ferroelastic transition or a first-order ferroelastic transition that is very close to being a second-order phase transition.

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Authors and Affiliations

  1. Fock Research Institute, St. Petersburg State University, Ul’yanovskaya ul. 1, St. Petersburg, Petrodvorets, 198504, Russia

    L. Khusravbekov, E. V. Charnaya & S. D. Vasil’kov

  2. Umarov Physicotechnical Institute, Academy of Sciences of the Republic of Tajikistan, ul. Aini 2299/1, Dushanbe, 734063, Tajikistan

    L. Khusravbekov, I. K. Rakhimov, M. I. Salakhutdinov & A. Kholov

Authors
  1. L. Khusravbekov
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  2. E. V. Charnaya
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  3. S. D. Vasil’kov
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  4. I. K. Rakhimov
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  5. M. I. Salakhutdinov
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  6. A. Kholov
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Additional information

Original Russian Text © L. Khusravbekov, E.V. Charnaya, S.D. Vasil’kov, I.K. Rakhimov, M.I. Salakhutdinov, A. Kholov, 2007, published in Fizika Tverdogo Tela, 2007, Vol. 49, No. 3, pp. 493–495.

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Khusravbekov, L., Charnaya, E.V., Vasil’kov, S.D. et al. Phase transition in a NaBi(MoO4)2 crystal: Acoustic investigations. Phys. Solid State 49, 516–518 (2007). https://doi.org/10.1134/S1063783407030249

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  • DOI: https://doi.org/10.1134/S1063783407030249

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