Abstract
The fragmentation description is used to analyze calculated neutron scattering intensities from kagome ice and spin ice systems. The longitudinal, transverse, and harmonic fragments produce independent contributions to the neutron scattering intensity. This framework is used to analyze the ordering due to quantum fluctuations in the topologically constrained phase of kagome ice and the monopole crystal phase of spin ice. Here, quantum fluctuations are restricted to the transverse fragment, and they drive the system into a double-$q$ structure in which longitudinal and transverse fragments have a different ordering wave vector. The intensity reduction of the Bragg peaks for the transverse fragments, compared with known classical limits, can be used as a diagnostic tool for quantum fluctuations. Published quantum Monte Carlo data for spin ice in a [111] field are consistent with the proposed protocol.
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