Signatures of polarity in ferroelastic domain walls and antiphase boundaries of SrTiO.sub.3./sub. and other perovskites

0556085 - FZÚ 2023 RIV NL eng J - Journal Article
Schranz, W. - Tröster, A. - Rychetský, Ivan
Signatures of polarity in ferroelastic domain walls and antiphase boundaries of SrTiO₃ and other perovskites.
Journal of Alloys and Compounds. Roč. 890, Jan. (2022), č. článku 161775. ISSN 0925-8388. E-ISSN 1873-4669
Institutional support: RVO:68378271
Keywords : domain wall symmetry * Landau theory * tensor properties
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 6.2, year: 2022
Method of publishing: Open access

In the present work we study the polar properties of domain walls using a recently developed method of combining layer group analysis with order parameter symmetry [Schranz et al. PRB 100 (2019) 184105]. Using this method we obtain a detailed overview on the microscopic and macroscopic properties of domain walls which we can quantify with results from Landau-Ginzburg-Devonshire theory. Recently, we have applied [Schranz et al. PRB 102 (2020) 184101] the method to analyse the symmetry and polar properties of ferroelastic twin walls and antiphase boundaries in SrTiO3. Here we discuss the elastic anomalies observed in SrTiO3 at various temperatures in the light of these findings.
Permanent Link: http://hdl.handle.net/11104/0330465