Magnetic field drives a crossover from two-dimensional to one-dimensional spin dynamics in a model of botallackite, with the low-energy spectrum matching a field-polarized spin-1/2 Heisenberg chain.
In the vicinity of饾拻=[00], we observe a linearly dispersing spin- wave mode with a larger velocity, consistent with the linear spin-wave calculations [30]
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Magnetic-Field-Driven Dimensional Reduction in a Quantum Antiferromagnet
Magnetic field drives a crossover from two-dimensional to one-dimensional spin dynamics in a model of botallackite, with the low-energy spectrum matching a field-polarized spin-1/2 Heisenberg chain.