Accurate measurements of the acoustical physical constants of LiNbO/sub 3/ and LiTaO/sub 3/ single crystals

Kushibiki, J.; Takanaga, Izumi; Arakawa, Mototaka; Sannomiya, T.

doi:10.1109/58.796136

Cited by 156 publications

(95 citation statements)

References 13 publications

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“…Low temperature lattice thermal expansion of trigonal LiNbO 3 is also obtained. The results are compared with those obtained by other workers [15][16][17][18][19][20][21][22] .…”

Section: Introductionmentioning

confidence: 61%

Higher Order Elastic Constants, Gruneisen Parameters and Lattice Thermal Expansion of Lithium Niobate

Philip

Menon

Indulekha

2006

Journal of Chemistry

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Abstract:The second and third-order elastic constants and pressure derivatives of second-order elastic constants of trigonal LiNbO 3 (lithium niobate) have been obtained using the deformation theory. The strain energy density estimated using finite strain elasticity is compared with the strain dependent lattice energy density obtained from the elastic continuum model approximation. The second-order elastic constants and the non-vanishing third-order elastic constants along with the pressure derivatives of trigonal LiNbO 3 are obtained in the present work. The second and third-order elastic constants are compared with available experimental values. The second-order elastic constant 11 C which corresponds to the elastic stiffness along the basal plane of the crystal is less than 33 C which corresponds to the elastic stiffness tensor component along the c-axis of the crystal. The pressure derivatives, dp C d ij / ′ obtained in the present work, indicate that trigonal LiNbO 3 is compressible. The higher order elastic constants are used to find the generalized Gruneisen parameters of the elastic waves propagating in different directions in LiNbO 3 . The Brugger gammas are evaluated and the low temperature limit of the Gruneisen gamma is obtained. The results are compared with available reported values.

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“…Low temperature lattice thermal expansion of trigonal LiNbO 3 is also obtained. The results are compared with those obtained by other workers [15][16][17][18][19][20][21][22] .…”

Section: Introductionmentioning

confidence: 61%

Higher Order Elastic Constants, Gruneisen Parameters and Lattice Thermal Expansion of Lithium Niobate

Philip

Menon

Indulekha

2006

Journal of Chemistry

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“…where s ij is the element of the elastic compliance matrix, for which the values obtained by coordinate transformation of the elastic constants of LiNbO 3 by Kushibiki and colleagues [9] are used. In Hertz's formula, the Poisson ratio is treated as the value without anisotropy.…”

Section: Computational Parametersmentioning

confidence: 99%

Simulation model of surface acoustic wave motor considering tangential rigidity

Asai

Kurosawa

2003

Electron Comm Jpn Pt III

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SUMMARYIn order to attempt performance improvement of a surface acoustic wave motor, it is necessary to understand the contact condition between the stator substrate and the slider and to determine the relationship between the basic performance and the physical parameters. In this research, a simulation model taking into account the tangential rigidity on the stator substrate surface is proposed. The effects of parameters such as the friction coefficient, amplitude, and rigidity on the driving performance are elucidated. The validity of the proposed model is demonstrated by a comparison with the experimental results. In addition, detailed calculations are carried out, including determination of the normal position change of the slider by means of the simulation model.

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“…Elastic, photoelastic and piezoelectric properties of lithium niobate were studied comprehensively [1][2][3][4]. Due to strong piezoelectric effect in this material, SAW and surface skimming BAWs can be generated by an interdigital transducer located on the crystal surface.…”

Section: Introductionmentioning

confidence: 99%