Dynamics and Topology of Symmetry Breaking with Skyrmions

被引：3

作者：

Pisljar, J. ^{[1
]}

Nych, A. ^{[1
,2
]}

Ognysta, U. ^{[2
]}

Petelin, A. ^{[3
,5
]}

Kralj, S. ^{[1
,4
]}

Musevic, I. ^{[1
,5
]}

机构：

[1] J Stefan Inst, Condensed Matter Dept, Jamova cesta 39, Ljubljana 1000, Slovenia

[2] Inst Phys, Dept Mol Photoelect, Nauky Prospect 46, UA-03680 Kiev, Ukraine

[3] J Stefan Inst, Complex Matter Dept, Jamova cesta 39, Ljubljana 1000, Slovenia

[4] Univ Maribor, Fac Nat Sci & Math, Dept Phys, Koroska Cesta 160, Maribor 2000, Slovenia

[5] Univ Ljubljana, Fac Math & Phys, Jadranska 19, Ljubljana 1000, Slovenia

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 17期

关键词：

NEMATIC-ISOTROPIC TRANSITION; BUBBLE-DOMAIN TEXTURE; LIQUID-CRYSTALS; PHASE;

D O I：

10.1103/PhysRevLett.132.178101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe that pretransitional order parameter fluctuations of a skyrmion-forming chiral nematic liquid crystal are slowed down for 4 orders of magnitude, if confined to less than or similar to 100 nm thin layers. Fluctuating fragments of half-skyrmions are observed in a narrow temperature interval and are explained by thermally activated hopping between the various energy states. Skyrmion fluctuations are accompanied by imbalanced topological charge: positive charges appear at higher temperatures and dominate in the fluctuating region until skyrmions fully condense and negative charges appear at lower temperatures.

引用

页数：6

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