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Remarkably, this trend remains valid even when extrapolated to room temperature (RT), as the lifetimes are dominated by entropy rather than energy barriers. 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Most studies so far have focused on low-$Q$ solitons ($|Q| \\leq 1$), such as skyrmions, bimerons, and vortices. Here, we present the first calculations of the lifetimes of {ring-like} high-$Q$ bimerons and demonstrate that they are fundamentally more stable than high-$Q$ skyrmions over a wide range of temperature. To obtain realistic results, our chosen system is an experimentally feasible van der Waals interface, Fe$_3$GeTe$_2$/Cr$_2$Ge$_2$Te$_6$. We show that the lifet","authors_text":"Changsheng Song, Dongzhe Li, Moritz A. Goerzen, Shiwei Zhu, Stefan Heinze","cross_cats":[],"headline":"In a van der Waals interface, high-Q bimerons and antibimerons live up to three orders of magnitude longer than |Q|=1 versions even at room temperature.","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-10-29T13:01:57Z","title":"Strongly enhanced lifetime of higher-order bimerons and antibimerons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2510.25478","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-18T03:22:59.707648Z","id":"233795bf-f2c2-43ac-aa81-065f365ff357","model_set":{"reader":"grok-4.3"},"one_line_summary":"High-Q bimerons in Fe3GeTe2/Cr2Ge2Te6 show lifetimes three orders of magnitude longer than |Q|=1 bimerons at room temperature because entropy dominates decay rates.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"In a van der Waals interface, high-Q bimerons and antibimerons live up to three orders of magnitude longer than |Q|=1 versions even at room temperature.","strongest_claim":"We show that the lifetimes of high-Q (anti)bimerons can exceed the lifetime of those with |Q|=1 by 3 orders of magnitude. 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