Evidence of hyperdimensional topological defects in a ferroelectric supercrystal phase-transition

2021/04/14 by Feifei Xin, F. Di Mei, Xin, Feifei +13
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Ferroelectric and Piezoelectric Materials #Materials Science (cond-mat.mtrl-sci) #Optics (physics.optics) #Other Condensed Matter (cond-mat.other) #Photorefractive and Nonlinear Optics

paper · pdf · doi:10.48550/arxiv.2104.06791

openalex publication_date 2021/04/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We perform real-time stereoscopic wide-area imaging of a ferroelectric phase-transition in KTN:Li. Spontaneous polarization is observed to form a thermally hysteretic 3D lattice of mutually interlinked closed-flux patterns that spans the entire sample. Results are compatible with a supercrystal of N=4 topological texture defects arising as the three-fold spatial and one-fold time-inversion symmetries are simultaneously broken. Each lattice site of the texture supercrystal emerges as the projection in actual space of an S³ hypersphere, an extended volume Hopf-link fabric able to screen both volume charge and ferroelectric strain.

Citations

• Comments on Nonlinear Wave Equations as Models for Elementary Particles
• Recent progress in relaxor ferroelectrics with perovskite structure

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