Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice

Abstract We study the effects of doping the Kitaev model on the honeycomb lattice where the spins interact via the bond-directional interaction J K, which is known to have a quantum spin liquid as its exact ground state. The effect of hole doping is studied within the t-J K model on a three-leg cyli...

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Autores principales:	Cheng Peng, Yi-Fan Jiang, Thomas P. Devereaux, Hong-Chen Jiang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
Acceso en línea:	https://doaj.org/article/7c70d36381264d3e8351d1320f8e27a6
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spelling	oai:doaj.org-article:7c70d36381264d3e8351d1320f8e27a62021-12-02T18:19:02ZPrecursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice10.1038/s41535-021-00363-02397-4648https://doaj.org/article/7c70d36381264d3e8351d1320f8e27a62021-07-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00363-0https://doaj.org/toc/2397-4648Abstract We study the effects of doping the Kitaev model on the honeycomb lattice where the spins interact via the bond-directional interaction J K, which is known to have a quantum spin liquid as its exact ground state. The effect of hole doping is studied within the t-J K model on a three-leg cylinder using density-matrix renormalization group. Upon light doping, we find that the ground state of the system has a dominant quasi-long-range charge-density-wave correlations but short-range single-particle correlations. In the pairing channel, the even-parity superconducting correlation is dominant with d-wave-like symmetry, which oscillates in sign as a function of separation with a period equal to that of the spin-density wave and two times the charge-density wave. Although these correlations fall rapidly (possibly exponentially) at long distances, this is never-the-less the example where a pair-density wave is the leading instability in the pairing channel on the honeycomb lattice.Cheng PengYi-Fan JiangThomas P. DevereauxHong-Chen JiangNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 Cheng Peng Yi-Fan Jiang Thomas P. Devereaux Hong-Chen Jiang Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice
description	Abstract We study the effects of doping the Kitaev model on the honeycomb lattice where the spins interact via the bond-directional interaction J K, which is known to have a quantum spin liquid as its exact ground state. The effect of hole doping is studied within the t-J K model on a three-leg cylinder using density-matrix renormalization group. Upon light doping, we find that the ground state of the system has a dominant quasi-long-range charge-density-wave correlations but short-range single-particle correlations. In the pairing channel, the even-parity superconducting correlation is dominant with d-wave-like symmetry, which oscillates in sign as a function of separation with a period equal to that of the spin-density wave and two times the charge-density wave. Although these correlations fall rapidly (possibly exponentially) at long distances, this is never-the-less the example where a pair-density wave is the leading instability in the pairing channel on the honeycomb lattice.
format	article
author	Cheng Peng Yi-Fan Jiang Thomas P. Devereaux Hong-Chen Jiang
author_facet	Cheng Peng Yi-Fan Jiang Thomas P. Devereaux Hong-Chen Jiang
author_sort	Cheng Peng
title	Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice
title_short	Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice
title_full	Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice
title_fullStr	Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice
title_full_unstemmed	Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice
title_sort	precursor of pair-density wave in doping kitaev spin liquid on the honeycomb lattice
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7c70d36381264d3e8351d1320f8e27a6
work_keys_str_mv	AT chengpeng precursorofpairdensitywaveindopingkitaevspinliquidonthehoneycomblattice AT yifanjiang precursorofpairdensitywaveindopingkitaevspinliquidonthehoneycomblattice AT thomaspdevereaux precursorofpairdensitywaveindopingkitaevspinliquidonthehoneycomblattice AT hongchenjiang precursorofpairdensitywaveindopingkitaevspinliquidonthehoneycomblattice
_version_	1718378164285079552

Precursor of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice

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