Exchange interactions and spin dynamics in the layered honeycomb ferromagnet 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>CrI</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>

Bandyopadhyay, S.; Buessen, Finn Lasse; Ritwik, Das,; Utermohlen, Franz G.; Trivedi, Nandini; Paramekanti, Arun; Dasgupta, Indra

doi:10.1103/physrevb.105.184430

Cited by 5 publications

(1 citation statement)

References 35 publications

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“…Then, the Kitaev interaction is no longer dominant but is overshadowed by the Heisenberg interaction. Given its sensitivity to various hopping integrals, the strength of the Kitaev interaction in candidate materials with heavy anions such as CrI 3 is currently under debate [53,[131][132][133][134]] and yet to be fully determined.…”

Section: Higher-s Extensionsmentioning

confidence: 99%

Beyond Kitaev physics in strong spin-orbit coupled magnets

Rousochatzakis,

Perkins,

Luo

et al. 2024

Rep. Prog. Phys.

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We review the recent advances and current challenges in the field of strong spin-orbit coupled Kitaev materials, with a particular emphasis on the physics beyond the exactly-solvable Kitaev spin liquid point. To this end, we present a comprehensive overview of the key exchange interactions in candidate materials with a specific focus on systems featuring effective $J_{\rm eff}\!=\!1/2$ magnetic moments. This includes, but not limited to, $5d^5$ iridates, $4d^5$ ruthenates and $3d^7$ cobaltates. Our exploration covers the microscopic origins of these interactions, along with a systematic attempt to map out the most intriguing correlated regimes of the multi-dimensional parameter space. Our approach is guided by robust symmetry and duality transformations as well as insights from a wide spectrum of analytical and numerical studies. We also survey higher spin Kitaev models and recent exciting results on quasi-one-dimensional models and discuss their relevance to higher-dimensional models. Finally, we highlight some of the key questions in the field as well as future directions.

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