磁矩碎裂与单极晶化
Magnetic-Moment Fragmentation and Monopole Crystallization
摘要：
库仑相，其偶极相关性和夹点散射模式，是讨论几何阻挫系统的核心，从水冰到二元和混合价合金，以及阻挫磁体的许多例子。基于晶格的系统中出现的库仑相与无发散场和长程序的缺乏有关。在这里，我们超越了这种范式，证明了库仑相可以自然地出现在一个有序的系统中作为一个持续的波动背景。为了解释这一行为，我们引入的概念，分裂的领域的磁矩分为两部分，一个产生的磁性晶体，其他的磁性流体的所有特性的一个新兴的库仑相位。我们的理论是支持数值模拟，我们讨论了它的重要性方面的一些实验结果的解释。
英文摘要：
The Coulomb phase, with its dipolar correlations and pinch-point-scattering patterns, is central to discussions of geometrically frustrated systems, from water ice to binary and mixed-valence alloys, as well as numerous examples of frustrated magnets. The emergent Coulomb phase of lattice-based systems has been associated with divergence-free fields and the absence of long-range order. Here, we go beyond this paradigm, demonstrating that a Coulomb phase can emerge naturally as a persistent fluctuating background in an otherwise ordered system. To explain this behavior, we introduce the concept of the fragmentation of the field of magnetic moments into two parts, one giving rise to a magnetic monopole crystal, the other a magnetic fluid with all the characteristics of an emergent Coulomb phase. Our theory is backed up by numerical simulations, and we discuss its importance with regard to the interpretation of a number of experimental results.
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