Arrested Relaxation in a Disorder-Free Coulomb Spin Liquid
Souvik Kundu Arnab Seth Sthitadhi Roy Subhro Bhattacharjee Roderich Moessner
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Abstract
We investigate Coulomb spin liquids in classical spin-3/2 ice and show that the enlarged on-site Hilbert space gives rise to a qualitatively new class of such phases. Beyond the conventional magnetic monopoles of spin-1/2 ice, the system hosts additional low-energy crystal-field excitations, whose interplay with monopoles significantly modifies both equilibrium and non-equilibrium properties. Following a thermal quench, we find a pronounced dynamical arrest manifested in an exponentially long-lived {athermal} plateau in spin autocorrelations. This constitutes a rare example of dynamical arrest in a short-range interacting, disorder-free system. We demonstrate that the arrested dynamics originate from novel composite excitation structures unique to spin-3/2 ice and from kinetically constrained relaxation pathways that require activated processes. Our results establish higher-spin ice as a fertile platform for realising unconventional Coulomb spin liquids and dynamical arrest without quenched disorder.引用本文复制引用
Souvik Kundu,Arnab Seth,Sthitadhi Roy,Subhro Bhattacharjee,Roderich Moessner.Arrested Relaxation in a Disorder-Free Coulomb Spin Liquid[EB/OL].(2026-02-26)[2026-02-28].https://arxiv.org/abs/2602.23362.学科分类
物理学/晶体学
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