arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2501.03375cond-mat.mes-hallcond-mat.softcond-mat.stat-mech
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偶极阿勒颇晶格:无顶点阻挫条件下的基态有序与遍历动力学

The dipolar Aleppo lattice: Ground state ordering and ergodic dynamics in the absence of vertex frustration

Gopi Mahato, Davis Crater, Christian Hoyt, Duncan Miertschin, Balaram Regmi, Kevin Hofhuis, Scott Dhuey, Barat Achinuq, Francesco Caravelli, Alan Farhan

AI总结:

本文提出无顶点阻挫的阿勒颇自旋冰几何结构,通过同步辐射光电子显微镜观测证实其基态有序且无遍历性破缺,表明顶点阻挫是遍历性转变的关键条件。

摘要:

我们引入了阿勒颇自旋冰几何结构,这是抽稀方形冰图案的另一种变体,与先前研究的类似系统不同,该结构不表现出顶点阻挫。利用基于同步加速器的光电子发射显微镜,我们直接观察了热退火后达到的低能态,以及随温度变化的磁矩波动。结果揭示了基态图案的观测以及遍历性破缺动力学的缺失。我们的观测进一步证实了顶点阻挫是遍历性转变出现的重要判据。

英文摘要:

We introduce the Aleppo spin ice geometry, another variation of decimated square ice patterns, which in contrast to similar systems previously studied, does not exhibit vertex frustration. Using synchrotron-based photoemission electron microscopy, we directly visualize low-energy states achieved after thermal annealing, in addition to temperature-dependent moment fluctuations. The results reveal the observation of ground state patterns and the absence of ergodicity-breaking dynamics. Our observations further confirm vertex frustration to be an important criterion for the emergence of ergodicity transitions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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