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This paper discusses the effect of anisotropy phenomena on different parameters used in the application of piezoelectric materials. The mechanism involves the orientation-dependant evaluation of piezoelectric material coefficients for the two different piezoelectric materials Lithium Niobate (LiNbO3) and Langasite (La3Ga5SiO14). Specifically, the change in value of material coefficients and longitudinal piezoelectric coefficients due to the piezoelectric anisotropy has been studied and presented. The large electromechanical coupling efficiency has been measured, and the corresponding orientations for the LiNbO3 and La3Ga5SiO14 piezoelectric materials have been investigated. The maximum value of longitudinal piezoelectric coefficient is measured as up to 10.80 pC/N for langasite and up to 66.47 pC/N for LiNbO3. The obtained data of materials are very useful in the design of piezoelectric devices and sensors.

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Investigations of Anisotropy Nature of Lithium Niobate and Langasite Piezoelectric Single Crystals

  • 会议论文

  • 发表日期：

    2026年

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  • Aditya Kumar Nagmani,
  • Bhutnath Singh Munda,
  • Amit Prakash,
  • Kunal Singh

摘要

This paper discusses the effect of anisotropy phenomena on different parameters used in the application of piezoelectric materials. The mechanism involves the orientation-dependant evaluation of piezoelectric material coefficients for the two different piezoelectric materials Lithium Niobate (LiNbO3) and Langasite (La3Ga5SiO14). Specifically, the change in value of material coefficients and longitudinal piezoelectric coefficients due to the piezoelectric anisotropy has been studied and presented. The large electromechanical coupling efficiency has been measured, and the corresponding orientations for the LiNbO3 and La3Ga5SiO14 piezoelectric materials have been investigated. The maximum value of longitudinal piezoelectric coefficient is measured as up to 10.80 pC/N for langasite and up to 66.47 pC/N for LiNbO3. The obtained data of materials are very useful in the design of piezoelectric devices and sensors.