Characterization of oxygen vacancies in SrTiO3 by means of anelastic and Raman spectroscopy

• Published in: Journal of applied physics Vol. 126; no. 15
• Main Authors: Chapron, David, Cordero, Francesco, Fontana, Marc D.
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 21.10.2019
• Subjects: Anelasticity; Applied physics; Oxygen; Raman spectra; Raman spectroscopy; Spectrum analysis; Storage modulus; Strontium titanates; Vacancies

Oxygen vacancies in reduced SrTiO 3 are investigated by Raman spectroscopy and dynamic elastic modulus measurements. The anelastic spectrum is used to evaluate the amount and state of the O vacancies, which result to be almost completely paired and otherwise aggregated at a concentration of 0.5 mol....