AI Article Synopsis
- The study uses neutron scattering to demonstrate the coexistence of ferromagnetism and antiferromagnetism in the low-temperature state of the pyrochlore quantum magnet.
- Magnetic Bragg peaks reveal long-range ferromagnetic order, while inelastic scattering indicates the presence of short-range antiferromagnetic correlations.
- Simulations support that antiferromagnetism is metastable within a predominantly ferromagnetic state, highlighting the complexity of magnetic behavior in this material.
Article Abstract
We use neutron scattering to show that ferromagnetism and antiferromagnetism coexist in the low T state of the pyrochlore quantum magnet [Formula: see text] While magnetic Bragg peaks evidence long-range static ferromagnetic order, inelastic scattering shows that short-range correlated antiferromagnetism is also present. Small-angle neutron scattering provides direct evidence for mesoscale magnetic structure that we associate with metastable antiferromagnetism. Classical Monte Carlo simulations based on exchange interactions inferred from [Formula: see text]-oriented high-field spin wave measurements confirm that antiferromagnetism is metastable within the otherwise ferromagnetic ground state. The apparent lack of coherent spin wave excitations and strong sensitivity to quenched disorder characterizing [Formula: see text] is a consequence of this multiphase magnetism.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959578 | PMC |
| http://dx.doi.org/10.1073/pnas.2008791117 | DOI Listing |
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