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Floquet engineering of Kitaev quantum magnets
Strongly Correlated Electrons · Submitted 2 Nov 2021
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We demonstrate that all the magnetic interactions can be tuned in situ by the amplitude and frequency of the laser, hence providing a route to stabilize the Kitaev quantum spin liquid phase.
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The abstract, sentence by sentence
In recent years, there has been an intense search for materials realizing the Kitaev quantum spin liquid model. A number of edge-shared compounds with strong spin-orbit coupling, such as RuCl$_3$ and iridates, have been proposed to realize this model. Nevertheless, an effective spin Hamiltonian derived from the microscopic model relevant to these compounds generally contains terms that are antagonistic toward the quantum spin liquid. This is consistent with the fact the zero magnetic field ground state of these materials is generally magnetically ordered. It is a pressing issue to identify protocols to drive the system to the limit of the Kitaev quantum spin model. In this work, we propose Floquet engineering of these Kitaev quantum magnets by coupling materials to a circularly polarized laser. We demonstrate that all the magnetic interactions can be tuned in situ by the amplitude and frequency of the laser, hence providing a route to stabilize the Kitaev quantum spin liquid phase.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | In recent years, there has been an intense search for materials realizing the Kitaev quantum spin liquid model. | background 1.00 | 0.03 | 0.01 | asserted 1.00 |
| s1 | A number of edge-shared compounds with strong spin-orbit coupling, such as RuCl$_3$ and iridates, have been proposed to realize this model. | background 1.00 | 0.04 | 0.02 | hedged possibility 0.72 |
| s2 | Nevertheless, an effective spin Hamiltonian derived from the microscopic model relevant to these compounds generally contains terms that are antagonistic toward the quantum spin liquid. | background 0.92 | 0.19 | 0.02 | asserted 0.80 |
| s3 | This is consistent with the fact the zero magnetic field ground state of these materials is generally magnetically ordered. | background 0.87 | 0.07 | 0.02 | hedged possibility 0.79 |
| s4 | It is a pressing issue to identify protocols to drive the system to the limit of the Kitaev quantum spin model. | gap 0.93 | 0.04 | 0.03 | asserted 0.98 |
| s5 | In this work, we propose Floquet engineering of these Kitaev quantum magnets by coupling materials to a circularly polarized laser. | contribution 0.80 | 0.67 | 0.18 | asserted 0.76 |
| s6 | We demonstrate that all the magnetic interactions can be tuned in situ by the amplitude and frequency of the laser, hence providing a route to stabilize the Kitaev quantum spin liquid phase. | result 0.81 | 0.90 | 0.92 | asserted 1.00 |
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The paper
Original abstract
In recent years, there has been an intense search for materials realizing the Kitaev quantum spin liquid model. A number of edge-shared compounds with strong spin-orbit coupling, such as RuCl$_3$ and iridates, have been proposed to realize this model. Nevertheless, an effective spin Hamiltonian derived from the microscopic model relevant to these compounds generally contains terms that are antagonistic toward the quantum spin liquid. This is consistent with the fact the zero magnetic field ground state of these materials is generally magnetically ordered. It is a pressing issue to identify protocols to drive the system to the limit of the Kitaev quantum spin model. In this work, we propose Floquet engineering of these Kitaev quantum magnets by coupling materials to a circularly polarized laser. We demonstrate that all the magnetic interactions can be tuned in situ by the amplitude and frequency of the laser, hence providing a route to stabilize the Kitaev quantum spin liquid phase.
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How the literature uses it
3 arXiv papers cite this in 3 sentences
Papers citing it · 2 sentences without a confident label
Cites it as support 1 paper
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Therefore, these procedures allow us to drive the material into a regime where the $Γ$ interaction is prominent [ref] .
Interplay of magnetic field and trigonal distortion in the honeycomb $\Gamma$ model: Occurrence of a spin-flop phase · Conclusion · 0.96
What it cites · 8 sentences without a confident label
Uses the method or tool of 1 paper
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In the absence of ligand degree of freedom, we perform a second-order perturbation theory [ref] and time-dependent Schrieffer-Wolff transformation [ref] to obtain the various couplings defined in Eq. ([ref]) as
Inverse Faraday effect in Mott insulators · Spin-exchange model: Perturbation theory · 0.84
Cites as background 1 paper
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Recently, the inclusion of ligands has been investigated in a few studies [ref] .
Controlling ligand-mediated exchange interactions in periodically driven magnetic materials · Spin-exchange model: ED with ligands · 0.83
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