Vector, bidirector, and Bloch skyrmion phases induced by structural crystallographic symmetry breaking

0532983 - FZÚ 2021 RIV US eng J - Journal Article
Erb, Kay C. - Hlinka, Jiří
Vector, bidirector, and Bloch skyrmion phases induced by structural crystallographic symmetry breaking.
Physical Review B. Roč. 102, č. 2 (2020), s. 1-6, č. článku 024110. ISSN 2469-9950. E-ISSN 2469-9969
R&D Projects: GA ČR GX19-28594X
Institutional support: RVO:68378271
Keywords : symmetry breaking * skyrmions * ferroelectrics
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.036, year: 2020
Method of publishing: Limited access
https://doi.org/10.1103/PhysRevB.102.024110

The 212 species of structural phase transitions which break macroscopic symmetry are analyzed with respect to the occurrence of time-reversal-invariant vector and bidirector order parameters.The orientational domain states of the low-symmetry phase by these vectorlike physical properties has been derived using a computer algorithm exploiting the concept of polar, axial, chiral, and neutral dipoles. It is argued that the presence of a pseudo-Lifshitz invariant of chiral bidirector symmetry in a Ginzburg-Landau functional of uniaxial ferroelectrics can induce electric Bloch skyrmions in the same way as the Dzyaloshinskii-Moriya interaction induces bulk magnetic Bloch skyrmions in chiral magnets.

Permanent Link: http://hdl.handle.net/11104/0311487