Jump to ContentJump to Main Navigation

Founded in 1877!

Zeitschrift für Kristallographie - Crystalline Materials

Ed. by Antipov, Evgeny / Bismayer, Ulrich / Huppertz, Hubert / Petrícek, Václav / Pöttgen, Rainer / Schmahl, Wolfgang / Tiekink, E. R. T. / Zou, Xiaodong

12 Issues per year


IMPACT FACTOR increased in 2013: 1.255

SCImago Journal Rank (SJR): 0.683
Source Normalized Impact per Paper (SNIP): 0.812

VolumeIssuePage

Issues

Lattice parameters of La3Ga5SiO14 as a function of hydrostatic pressure

S. Werner / B. Maximov / H. Schulz / V. Molchanov / A. Vigdorchik / Yu. Pisarevskii

Citation Information: Zeitschrift für Kristallographie/International journal for structural, physical, and chemical aspects of crystalline materials. Volume 217, Issue 9/2002, Pages 460–463, ISSN (Print) 0044-2968, DOI: 10.1524/zkri.217.9.460.22886, September 2009

Publication History

Published Online:
2009-09-25

Abstract

Langasite (La3Ga5SiO14) crystallizes in the polar space group P321. Here we report the pressure dependence of the lattice parameters at high hydrostatic pressures up to 10.2 GPa. The results presented in terms of compressibility agree well with results from measurements of the elastic constants. According to a Birch-Murnaghan equation of state, the bulk modulus and its pressure derivative are 134.6(2) and 2.8(1) GPa, respectively. The compression of langasite crystals is anisotropic, the c/a-ratio appears to be a linear function of the pressure applied according to c/a = 0.62460(6) + 0.00055(1)* p/GPa. Altogether four single crystals have been investigated. Two of them showed a splitting of reflections (hhl). This splitting reaches a maximum at approximately 9 GPa and proved to be reversible.

Comments (0)

Please log in or register to comment.