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Spin-ice physics in cadmium cyanide.

ABSTRACT: Spin-ices are frustrated magnets that support a particularly rich variety of emergent physics. Typically, it is the interplay of magnetic dipole interactions, spin anisotropy, and geometric frustration on the pyrochlore lattice that drives spin-ice formation. The relevant physics occurs at temperatures commensurate with the magnetic interaction strength, which for most systems is 1-5 K. Here, we show that non-magnetic cadmium cyanide, Cd(CN)₂, exhibits analogous behaviour to magnetic spin-ices, but does so on a temperature scale that is nearly two orders of magnitude greater. The electric dipole moments of cyanide ions in Cd(CN)₂ assume the role of magnetic pseudospins, with the difference in energy scale reflecting the increased strength of electric vs magnetic dipolar interactions. As a result, spin-ice physics influences the structural behaviour of Cd(CN)₂ even at room temperature.

SUBMITTER: Coates CS

PROVIDER: S-EPMC8050284 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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Spin-ice physics in cadmium cyanide.

Coates Chloe S CS Baise Mia M Schmutzler Adrian A Simonov Arkadiy A Makepeace Joshua W JW Seel Andrew G AG Smith Ronald I RI Playford Helen Y HY Keen David A DA Siegel Renée R Senker Jürgen J Slater Ben B Goodwin Andrew L AL

Nature communications 20210415 1

Spin-ices are frustrated magnets that support a particularly rich variety of emergent physics. Typically, it is the interplay of magnetic dipole interactions, spin anisotropy, and geometric frustration on the pyrochlore lattice that drives spin-ice formation. The relevant physics occurs at temperatures commensurate with the magnetic interaction strength, which for most systems is 1-5 K. Here, we show that non-magnetic cadmium cyanide, Cd(CN)<sub>2</sub>, exhibits analogous behaviour to magnetic ...[more]

PMID: 33859176

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Dataset Information

Spin-ice physics in cadmium cyanide.

Publications

Spin-ice physics in cadmium cyanide.

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