Collective magnetic state induced by charge disorder in the non-Kramers rare-earth pyrochlore 
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Alexanian, Yann; Lhotel, Elsa; Ballou, Rafik; Colin, Claire V.; Klein, Holger; Le Priol, Antonin; Museur, Flavien; Robert, Julien; Pachoud, Elise; Lejay, Pascal; Hadj-Azzem, Abdellali; Fåk, Bjorn; Berrod, Quentin; Zanotti, Jean-Marc; Suard, Emmanuelle; Dejoie, Catherine; de Brion, Sophie; Simonet, Virginie

doi:10.1103/physrevmaterials.7.094403

Phys. Rev. Materials

2023

DOI: 10.1103/physrevmaterials.7.094403

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Collective magnetic state induced by charge disorder in the non-Kramers rare-earth pyrochlore Tb2ScNbO7

Yann Alexanian,

Elsa Lhotel,

Rafik Ballou

et al.

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2024

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Cited by 2 publications

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Entropy-stabilized materials as a platform to explore terbium-based pyrochlore frustrated magnets

Vayer,

Petit,

Damay

et al. 2024

Commun Mater

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Entropy-stabilized materials as a platform to explore terbium-based pyrochlore frustrated magnets

Vayer,

Petit,

Damay

et al. 2024

Commun Mater

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Fluctuation-induced spin nematic order in magnetic charge ice

Hemmatzade,

Essafi,

Taillefumier

et al. 2024

Phys. Rev. B

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A pyrochlore charge ice consisting of two magnetic cation types gives rise to a Heisenberg magnet with an interesting type of long-range correlated bond disorder. If the antiferromagnetic exchange among cations of the same type dominates over the interspecies exchange, closed antiferromagnetic chains following the fully packed loops of like cations emerge as nonlocal effective low-temperature degrees of freedom. Monte Carlo simulations reveal a fluctuation driven first-order phase transition from an algebraically correlated spin liquid to a long-range ordered spin nematic, which mean-field theory captures with very high accuracy. The global O(3) Heisenberg symmetry is suddenly reduced to a Z2 Ising symmetry as the Néel vectors of the strongly antiferromagnetically correlated loops align with each other to optimize the entropy of their thermal fluctuations. Interestingly, the nematic transition is found to be sensitive to the size statistics of the cation loops and thus provides a direct thermodynamic probe of otherwise elusive structural properties. In turn this sensitivity offers a structural route to engineering the nematic phase stability. Published by the American Physical Society 2024

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Collective magnetic state induced by charge disorder in the non-Kramers rare-earth pyrochlore Tb2ScNbO7

Cited by 2 publications

References 60 publications

Entropy-stabilized materials as a platform to explore terbium-based pyrochlore frustrated magnets

Entropy-stabilized materials as a platform to explore terbium-based pyrochlore frustrated magnets

Fluctuation-induced spin nematic order in magnetic charge ice

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