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DOE OSTI · 2586961

Quasiparticle Interference in Kitaev Quantum Spin Liquids

Jahin, Ammar [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000161733740)·Zhang, Hao [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000297999118)·Halász, Gábor B. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Quantum Science Center (QSC)] (ORCID:0000000292948485)·Lin, Shi-Zeng [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]
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Abstract

We study quasiparticle interference (QPI) in the Kitaev quantum spin liquid (QSL) for electrons tunneling into the QSL. The local tunneling conductance around a spin vacancy or localized vison reveals unique features associated with fractionalized Majorana fermions, chargons, and visons. In certain parameter regimes, the single-spinon density of states and momentum dispersion can both be directly extracted from the tunneling conductance. In conclusion, our results suggest that QPI is a promising tool for identifying the Kitaev QSL and its fractionalized excitations.

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AnyonsDensity of statesDoublonFractionalizationPolaronsQuantum interference effectsTopological materialsTopological order

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Jahin, Ammar [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000161733740), Zhang, Hao [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000297999118), Halász, Gábor B. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Quantum Science Center (QSC)] (ORCID:0000000292948485), Lin, Shi-Zeng [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]. 2025-03-25. Quasiparticle Interference in Kitaev Quantum Spin Liquids. https://doi.org/10.1103/physrevlett.134.126501

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