Low-temperature anomalies in elastic properties of single-crystal (SrAl0.5Ta0.5O3) 1 − x (LaAlO3) x
Year: 2025
Type: article
Abstract: Two Czochralski grown crystals of the solid solution series (SrAl 0.5 Ta 0.5 O 3 ) 1 − x (LaAlO 3 ) x with slightly different compositional parameter x were investigated for thermoelastic properties and thermal expansion in the temperature range between 103 K and 1673 K. The coefficients of thermal expansion were obtained by high-resolution dilatometry and elastic stiffnesses by resonant ultrasound spectroscopy. The samples show an elastic softening below ambient temperatures indicating precursor effects of a phase transition that likely occurs below 100 K. The onset temperature of these effects depend on the parameter x in the solid solution series.
Institutions: Ruhr University Bochum, Leibniz Institute for Crystal Growth
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,230
OpenAlex ID: W4416817668