Acoustic properties of biaxial crystal of double lead molybdate Pb2MoO5

Abstract

The acoustic properties of crystalline double lead molybdate, which are promising for acoustoop tics, have been investigated. All elasticity coefficients of Pb 2 MoO 5 crystal, the phase velocities of acoustic waves, and the angles between the vectors of phase and group velocities of this material have been determined. The acoustic parameters of the crystal have been calculated based on experimental data from the SchaeferBergmann diagrams. The phase velocity of acoustic waves along some directions has also been determined by the standard (in acoustics) echo pulse method.

The low thermal gradient Czochralski crystal growth and microstructural properties of a Pb2MoO5(20−1) cleaved surface

“…Presently, Pb 2 MoO 5 is considered as one of the best known acousto-optical (AO) materials because of its high AO figure of merit. [13][14][15][16] Pb 2 MoO 5 melts congruently and, consequently, large perfect single crystals can be grown by the efficient Czochralski method. [17][18][19] The mechanical properties of the Pb 2 MoO 5 crystal permit the boule cutting and preparation of the sample in an arbitrary crystallographic direction needed for physical parameter measurements.…”

“…[17][18][19] The mechanical properties of the Pb 2 MoO 5 crystal permit the boule cutting and preparation of the sample in an arbitrary crystallographic direction needed for physical parameter measurements. [13][14][15][16][17][20][21][22][23] Nevertheless, pronounced cleavage parallel to plane (20−1) was reported in the literature. 14,16,20 The cleavage effect is evidently provided by disruption of the comparatively long Pb-O bonds between the layers shown in Fig.…”

“…[13][14][15][16][17][20][21][22][23] Nevertheless, pronounced cleavage parallel to plane (20−1) was reported in the literature. 14,16,20 The cleavage effect is evidently provided by disruption of the comparatively long Pb-O bonds between the layers shown in Fig. 1.…”

Electron paramagnetic resonance and partial density of states of copper impurity ions in Pb2MoO5 crystals

“…In particular, the attention is paid to the double lead molybdate Pb 2 MoO 5 with a strong anisotropy of acousto optical parameters [1][2][3]. According to [4][5][6], the structure of the Pb 2 MoO 5 crystal belongs to the symmetry space group…”