Studying the universal properties of pyrochlore Heisenberg antiferromaget in the presence of correlated disorder
We are interested in the effects of correlated disorder in structure and magnetism, a realization of such is fluoride pyrochlore CsNiCrF6. In CsNiCrF6 ice rules control the distribution of Ni2+ and Cr3+ cations on the pyrochlore lattice, resulting a special form of correlated disorder. Heisenberg Na2+ and Cr3+ spins develop an antiferromagnetic Coulomb phase at low temperature evidenced by pinch points in the diffuse scattering. We also find features in dynamics and correlations that are identical with other canonical antiferromagnetic Coulomb phases such as the PHAFM; this proposes that such Coulomb phases would have universal features. In our experiments and numerical investigations we can compare a real example of a Coulomb phase (CsNiCrF6), a model (with Monte-Carlo and spin dynamics simulations), and a canonical Coulomb phase that we can also simulate, such that overall we can investigate the origin and extent of universal emergent dynamics in classical antiferromagnetic Coulomb phases. Here we propose an experiment to capture the complete magnetic dynamics spectrum in CsNiCrF6 in reciprocal space, this will enable us to converge our studies on this system.
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The recommended format for citing this dataset in a research publication is in the following format:
HEMMATZADE Amirreza; FENNELL Tom and OLLIVIER Jacques. (2023). Studying the universal properties of pyrochlore Heisenberg antiferromaget in the presence of correlated disorder. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-05-865
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