AI Article Synopsis

  • A novel quantum disordered state of magnetic charges was demonstrated in a specially designed nanoengineered honeycomb lattice, despite the absence of observed quantum magnetic states in practice.
  • The research utilized spin-resolved neutron scattering and revealed a complex ground state with low and high integer magnetic charges, displaying cooperative paramagnetism at low temperatures.
  • The findings highlight the significant impact of exchange energy at the nanoscale, suggesting a new platform for exploring quantum mechanical phenomena associated with magnetic charges.

Article Abstract

A quantum magnetic state due to magnetic charges is never observed, even though they are treated as quantum mechanical variables in theoretical calculations. Here, the occurrence of a novel quantum disordered state of magnetic charges in a nanoengineered magnetic honeycomb lattice of ultra-small connecting elements is demonstrated. The experimental research, performed using spin resolved neutron scattering, reveals a massively degenerate ground state, comprised of low integer and energetically forbidden high integer magnetic charges, that manifests cooperative paramagnetism at low temperature. The system tends to preserve the degenerate configuration even under large magnetic field application. It exemplifies the robustness of disordered correlation of magnetic charges in a 2D honeycomb lattice. The realization of quantum disordered ground state elucidates the dominance of exchange energy, which is enabled due to the nanoscopic magnetic element size in nanoengineered honeycomb. Consequently, an archetypal platform is envisaged to study quantum mechanical phenomena due to emergent magnetic charges.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7967061PMC
http://dx.doi.org/10.1002/advs.202004103DOI Listing

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