Single-crystal elasticity of Zn 2 TiO 4 -spinel up to 18 GPa

The single-crystal elastic constants of the spinel phase of Zn 2 TiO 4 have been studied for the first-time using Brillouin scattering up to 18 GPa at room temperature in a diamond anvil cell. The three independent elastic constants of Zn 2 TiO 4 spinel at ambient conditions were calculated: C 11 =...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2022-08, Vol.55 (34), p.344002
Main Authors: Zhang, Caizi, Li, Fangfei, Wei, Xinmiao, Nie, Linsheng, Zhou, Qiang, Li, Xinyang, Li, Liang
Format: Article
Language:English
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Summary:The single-crystal elastic constants of the spinel phase of Zn 2 TiO 4 have been studied for the first-time using Brillouin scattering up to 18 GPa at room temperature in a diamond anvil cell. The three independent elastic constants of Zn 2 TiO 4 spinel at ambient conditions were calculated: C 11 = 226(3), C 12 = 137(4) and C 44 = 88(2). The bulk modulus ( K S0 ) is 167(3) GPa, with pressure derivative K ′ s = 5.3 ( 2 ) , and the shear modulus ( G 0 ) is 67(1) GPa, with pressure derivative G ′ = 0.06 ( 5 ) . On basis of previous studies, our results suggest a possibility of the general law of elastic constants with pressure derivative ( C ′ ijs ) for spinel structure minerals: C ′ 11 ≈ C ′ 12 and C ′ 44
ISSN:0022-3727
1361-6463
DOI:10.1088/1361-6463/ac7362