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Article Dans Une Revue Nature Communications Année : 2016

Fragmentation of magnetism in artificial kagome dipolar spin ice

Résumé

Geometrical frustration in magnetic materials often gives rise to exotic, low-temperature states of matter, such as the ones observed in spin ices. Here we report the imaging of the magnetic states of a thermally active artificial magnetic ice that reveal the fingerprints of a spin fragmentation process. This fragmentation corresponds to a splitting of the magnetic degree of freedom into two channels and is evidenced in both real and reciprocal space. Furthermore, the internal organization of both channels is interpreted within the framework of a hybrid spin–charge model that directly emerges from the parent spin model of the kagome dipolar spin ice. Our experimental and theoretical results provide insights into the physics of frustrated magnets and deepen our understanding of emergent fields through the use of tailor-made magnetism.
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Origine : Publication financée par une institution

Dates et versions

hal-01316259 , version 1 (03-01-2024)

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Benjamin Canals, Ioan-Augustin Chioar, Van-Dai Nguyen, Michel Hehn, Daniel Lacour, et al.. Fragmentation of magnetism in artificial kagome dipolar spin ice. Nature Communications, 2016, 7, pp.11446. ⟨10.1038/ncomms11446⟩. ⟨hal-01316259⟩
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