Topological dynamics of vortex-line networks in hexagonal manganites

Fei Xue*, Nan Wang, Xueyun Wang, Yanzhou Ji, Sang Wook Cheong, Long Qing Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The two-dimensional XY model is the first well-studied system with topological point defects. On the other hand, although topological line defects are common in three-dimensional systems, the evolution mechanism of line defects is not fully understood. The six domains in hexagonal manganites converge to vortex lines in three dimensions. Using phase-field simulations, we predicted that during the domain coarsening process, the vortex-line network undergoes three types of basic topological changes, i.e., vortex-line loop shrinking, coalescence, and splitting. It is shown that the vortex-antivortex annihilation controls the scaling dynamics.

Original languageEnglish
Article number020101
JournalPhysical Review B
Issue number2
StatePublished - 16 Jan 2018
Externally publishedYes


Dive into the research topics of 'Topological dynamics of vortex-line networks in hexagonal manganites'. Together they form a unique fingerprint.

Cite this