Abstract
Kitaev’s honeycomb lattice spin model is a remarkable exactly solvable model, which has a particular type of spin liquid (Kitaev spin liquid) as the ground state. Although its possible realization in iridates and has been vigorously discussed recently, these materials have substantial non-Kitaev direct exchange interactions and do not have a spin liquid ground state. We propose metal-organic frameworks (MOFs) with (or ), forming the honeycomb lattice as promising candidates for a more ideal realization of Kitaev-type spin models, where the direct exchange interaction is strongly suppressed. The great flexibility of MOFs allows generalization to other three-dimensional lattices for the potential realization of a variety of spin liquids, such as a Weyl spin liquid.
- Received 2 December 2016
DOI:https://doi.org/10.1103/PhysRevLett.119.057202
© 2017 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
Organically Made Quantum Spin Liquids
Published 1 August 2017
Versatile materials called metal-organic frameworks might be good systems in which to search for quantum spin liquids.
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