Temperature dependence of lattice parameters of langasite single crystals | Zendy

Kräußlich J. | Zendy; Höfer S. | Zendy; Zastrau U. | Zendy; Jeutter N. | Zendy; Baehtz C. | Zendy

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Temperature dependence of lattice parameters of langasite single crystals

Author(s) -

Kräußlich J.,

Höfer S.,

Zastrau U.,

Jeutter N.,

Baehtz C.

Publication year - 2010

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.201000034

Subject(s) - thermal expansion , trigonal crystal system , lattice (music) , atmospheric temperature range , quadratic equation , diffraction , condensed matter physics , thermal , materials science , nonlinear system , single crystal , lattice constant , chemistry , crystal structure , thermodynamics , crystallography , physics , optics , mathematics , composite material , geometry , quantum mechanics , acoustics

To determine the coefficient of thermal expansion of trigonal langasite (La 3 Ga 5 SiO 14 ) the two independent lattice parameters a and c are measured over a temperature range of 800 °C using X‐ray diffraction on single crystal samples. From the given nonlinear temperature dependence the linear and quadratic thermal coefficients of expansion α 11 , β 11 and α 33 , β 33 for the two lattice parameters a and c could be deduced. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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