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Exotic Kondo effect induced by spinons in a quantum spin liquid

Evidence for an exotic form of the Kondo effect has been obtained by placing magnetic atoms on single-layer 1T-TaSe2, which is a quantum spin liquid candidate. Unlike conventional Kondo screening, which arises from conduction electrons in a metal, the Kondo effect in 1T-TaSe2 arises from charge-neutral particles known as spinons.

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Fig. 1: Cobalt-induced resonances at the Hubbard band edges of single-layer 1T-TaSe2.

References

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This is a summary of: Chen, Y. et al. Evidence for a spinon Kondo effect in cobalt atoms on single-layer 1T-TaSe2. Nat. Phys. https://doi.org/10.1038/s41567-022-01751-4 (2022).

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Exotic Kondo effect induced by spinons in a quantum spin liquid. Nat. Phys. 18, 1283–1284 (2022). https://doi.org/10.1038/s41567-022-01752-3

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