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The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state

Due to the combination of a substantial spin-orbit coupling and correlation effects, iridium oxides hold a prominent place in the search for novel quantum states of matter, including, e.g., Kitaev spin liquids and topological Weyl states. We establish the promise of the very recently synthesized hyp...

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Autores principales: Katukuri, Vamshi M., Yadav, Ravi, Hozoi, Liviu, Nishimoto, Satoshi, van den Brink, Jeroen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4941717/
https://www.ncbi.nlm.nih.gov/pubmed/27404112
http://dx.doi.org/10.1038/srep29585
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author Katukuri, Vamshi M.
Yadav, Ravi
Hozoi, Liviu
Nishimoto, Satoshi
van den Brink, Jeroen
author_facet Katukuri, Vamshi M.
Yadav, Ravi
Hozoi, Liviu
Nishimoto, Satoshi
van den Brink, Jeroen
author_sort Katukuri, Vamshi M.
collection PubMed
description Due to the combination of a substantial spin-orbit coupling and correlation effects, iridium oxides hold a prominent place in the search for novel quantum states of matter, including, e.g., Kitaev spin liquids and topological Weyl states. We establish the promise of the very recently synthesized hyper-honeycomb iridate β-Li(2)IrO(3) in this regard. A detailed theoretical analysis reveals the presence of large ferromagnetic first-neighbor Kitaev interactions, while a second-neighbor antiferromagnetic Heisenberg exchange drives the ground state from ferro to zigzag order via a three-dimensional Kitaev spin liquid and an incommensurate phase. Experiment puts the system in the latter regime but the Kitaev spin liquid is very close and reachable by a slight modification of the ratio between the second- and first-neighbor couplings, for instance via strain.
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spelling pubmed-49417172016-07-20 The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state Katukuri, Vamshi M. Yadav, Ravi Hozoi, Liviu Nishimoto, Satoshi van den Brink, Jeroen Sci Rep Article Due to the combination of a substantial spin-orbit coupling and correlation effects, iridium oxides hold a prominent place in the search for novel quantum states of matter, including, e.g., Kitaev spin liquids and topological Weyl states. We establish the promise of the very recently synthesized hyper-honeycomb iridate β-Li(2)IrO(3) in this regard. A detailed theoretical analysis reveals the presence of large ferromagnetic first-neighbor Kitaev interactions, while a second-neighbor antiferromagnetic Heisenberg exchange drives the ground state from ferro to zigzag order via a three-dimensional Kitaev spin liquid and an incommensurate phase. Experiment puts the system in the latter regime but the Kitaev spin liquid is very close and reachable by a slight modification of the ratio between the second- and first-neighbor couplings, for instance via strain. Nature Publishing Group 2016-07-12 /pmc/articles/PMC4941717/ /pubmed/27404112 http://dx.doi.org/10.1038/srep29585 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Katukuri, Vamshi M.
Yadav, Ravi
Hozoi, Liviu
Nishimoto, Satoshi
van den Brink, Jeroen
The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state
title The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state
title_full The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state
title_fullStr The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state
title_full_unstemmed The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state
title_short The vicinity of hyper-honeycomb β-Li(2)IrO(3) to a three-dimensional Kitaev spin liquid state
title_sort vicinity of hyper-honeycomb β-li(2)iro(3) to a three-dimensional kitaev spin liquid state
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4941717/
https://www.ncbi.nlm.nih.gov/pubmed/27404112
http://dx.doi.org/10.1038/srep29585
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