Journal
PHYSICAL REVIEW LETTERS
Volume 127, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.127.107202
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Funding
- Deutsche Forschungsgemeinschaft [SFB 1143, 247310070]
- cluster of excellence ct.qmat [390858490, EXC 2147]
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By varying the constraints on a classical spin system, a series of distinct Coulomb liquids can be generated, leading to higher-rank spin liquids and new Coulomb liquids with an abundance of pinch points. This manipulation of topological defects in momentum space establishes a new and general route to uncovering exotic Coulomb liquids.
Coulomb spin liquids are topological magnetic states obeying an emergent Gauss law. Little distinction has been made between different kinds of Coulomb liquids. Here we show how a series of distinct Coulomb liquids can be generated straightforwardly by varying the constraints on a classical spin system. This leads to pair creation, and coalescence, of topological defects of an underlying vector field. The latter makes higher-rank spin liquids, of recent interest in the context of fracton theories, with attendant multifold pinch points in the structure factor, appear naturally. New Coulomb liquids with an abundance of pinch points also arise. We thus establish a new and general route to uncovering exotic Coulomb liquids, via the manipulation of topological defects in momentum space.
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