In-plane multi- q magnetic ground state of Na3 Co2 SbO6

Yuchen Gu; Xintong Li; Yue Chen; Kazuki Iida; Akiko Nakao; Koji Munakata; V. Ovidiu Garlea; Yangmu Li; Guochu Deng; I. A. Zaliznyak; J. M. Tranquada; Yuan Li

doi:10.1103/PhysRevB.109.L060410

In-plane multi- q magnetic ground state of Na3 Co2 SbO6

Yuchen Gu, Xintong Li, Yue Chen, Kazuki Iida, Akiko Nakao, Koji Munakata, V. Ovidiu Garlea, Yangmu Li, Guochu Deng, I. A. Zaliznyak, J. M. Tranquada, Yuan Li

Direct Geometry

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Na3Co2SbO6 is a potential Kitaev magnet with a monoclinic layered crystal structure. Recent investigations of the C3-symmetric sister compound Na2Co2TeO6 have uncovered a unique triple-q magnetic ground state, as opposed to a single-q (zigzag) one, prompting us to examine the influence of the reduced structural symmetry of Na3Co2SbO6 on its ground state. Neutron diffraction data obtained on a twin-free crystal reveal that the ground state remains a multi-q state, despite the system's strong non-C3-symmetric anisotropy. This robustness of multi-q orders suggests that they are driven by a common mechanism in the honeycomb cobaltates, such as interactions beyond the bilinear order. Spin-polarized neutron diffraction results show that the ordered moments are entirely in plane, with each staggered component orthogonal to the propagating wave vector. The inferred ground state appears more compatible with the so-called XXZ easy-plane anisotropy than the Kitaev anisotropy, and features unequal ordered moments reduced by strong quantum fluctuations.

Original language	English
Article number	L060410
Journal	Physical Review B
Volume	109
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.109.L060410
State	Published - Feb 1 2024

Funding

We are grateful for experimental assistance by Zirong Ye, Qian Xiao, Xiquan Zheng, and Yingying Peng, and for discussions with Wenjie Chen, Lukas Janssen, Wilhelm G. F. Krüger, Zhengxin Liu, Yuan Wan, Jiucai Wang, Weiliang Yao, and Yi Zhou. The work at Peking University was supported by the National Basic Research Program of China (Grant No. 2021YFA1401900) and the NSF of China (Grants No. 12061131004 and No. 11888101). The work at Brookhaven National Laboratory was supported by Office of Basic Energy Sciences (BES), Division of Materials Sciences and Engineering, U.S. Department of Energy (DOE), under Contract No. DE-SC0012704. A portion of this research used resources at Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. One of the neutron scattering experiments was performed at the MLF, J-PARC, Japan, under a user program (No. 2021B0158).

Funders	Funder number
U.S. Department of Energy	DE-SC0012704
Basic Energy Sciences
Division of Materials Sciences and Engineering
National Natural Science Foundation of China	11888101, 12061131004
National Key Research and Development Program of China	2021YFA1401900

Access to Document

10.1103/PhysRevB.109.L060410

Cite this

@article{44370b846aa04f32b5041866bbb94e5c,

title = "In-plane multi- q magnetic ground state of Na3 Co2 SbO6",

abstract = "Na3Co2SbO6 is a potential Kitaev magnet with a monoclinic layered crystal structure. Recent investigations of the C3-symmetric sister compound Na2Co2TeO6 have uncovered a unique triple-q magnetic ground state, as opposed to a single-q (zigzag) one, prompting us to examine the influence of the reduced structural symmetry of Na3Co2SbO6 on its ground state. Neutron diffraction data obtained on a twin-free crystal reveal that the ground state remains a multi-q state, despite the system's strong non-C3-symmetric anisotropy. This robustness of multi-q orders suggests that they are driven by a common mechanism in the honeycomb cobaltates, such as interactions beyond the bilinear order. Spin-polarized neutron diffraction results show that the ordered moments are entirely in plane, with each staggered component orthogonal to the propagating wave vector. The inferred ground state appears more compatible with the so-called XXZ easy-plane anisotropy than the Kitaev anisotropy, and features unequal ordered moments reduced by strong quantum fluctuations.",

author = "Yuchen Gu and Xintong Li and Yue Chen and Kazuki Iida and Akiko Nakao and Koji Munakata and Garlea, {V. Ovidiu} and Yangmu Li and Guochu Deng and Zaliznyak, {I. A.} and Tranquada, {J. M.} and Yuan Li",

note = "Publisher Copyright: {\textcopyright} 2024 American Physical Society. ",

year = "2024",

month = feb,

day = "1",

doi = "10.1103/PhysRevB.109.L060410",

language = "English",

volume = "109",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - In-plane multi- q magnetic ground state of Na3 Co2 SbO6

AU - Gu, Yuchen

AU - Li, Xintong

AU - Chen, Yue

AU - Iida, Kazuki

AU - Nakao, Akiko

AU - Munakata, Koji

AU - Garlea, V. Ovidiu

AU - Li, Yangmu

AU - Deng, Guochu

AU - Zaliznyak, I. A.

AU - Tranquada, J. M.

AU - Li, Yuan

PY - 2024/2/1

Y1 - 2024/2/1

N2 - Na3Co2SbO6 is a potential Kitaev magnet with a monoclinic layered crystal structure. Recent investigations of the C3-symmetric sister compound Na2Co2TeO6 have uncovered a unique triple-q magnetic ground state, as opposed to a single-q (zigzag) one, prompting us to examine the influence of the reduced structural symmetry of Na3Co2SbO6 on its ground state. Neutron diffraction data obtained on a twin-free crystal reveal that the ground state remains a multi-q state, despite the system's strong non-C3-symmetric anisotropy. This robustness of multi-q orders suggests that they are driven by a common mechanism in the honeycomb cobaltates, such as interactions beyond the bilinear order. Spin-polarized neutron diffraction results show that the ordered moments are entirely in plane, with each staggered component orthogonal to the propagating wave vector. The inferred ground state appears more compatible with the so-called XXZ easy-plane anisotropy than the Kitaev anisotropy, and features unequal ordered moments reduced by strong quantum fluctuations.

AB - Na3Co2SbO6 is a potential Kitaev magnet with a monoclinic layered crystal structure. Recent investigations of the C3-symmetric sister compound Na2Co2TeO6 have uncovered a unique triple-q magnetic ground state, as opposed to a single-q (zigzag) one, prompting us to examine the influence of the reduced structural symmetry of Na3Co2SbO6 on its ground state. Neutron diffraction data obtained on a twin-free crystal reveal that the ground state remains a multi-q state, despite the system's strong non-C3-symmetric anisotropy. This robustness of multi-q orders suggests that they are driven by a common mechanism in the honeycomb cobaltates, such as interactions beyond the bilinear order. Spin-polarized neutron diffraction results show that the ordered moments are entirely in plane, with each staggered component orthogonal to the propagating wave vector. The inferred ground state appears more compatible with the so-called XXZ easy-plane anisotropy than the Kitaev anisotropy, and features unequal ordered moments reduced by strong quantum fluctuations.

UR - http://www.scopus.com/inward/record.url?scp=85187165844&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.109.L060410

DO - 10.1103/PhysRevB.109.L060410

M3 - Article

AN - SCOPUS:85187165844

SN - 2469-9950

VL - 109

JO - Physical Review B

JF - Physical Review B

IS - 6

M1 - L060410

ER -

In-plane multi- q magnetic ground state of Na3 Co2 SbO6

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this