Lattice-tuned magnetism of Ru4+(4d4) ions in single crystals of the layered honeycomb ruthenates Li2RuO3 and Na2RuO3

J. C. Wang; J. Terzic; T. F. Qi; Feng Ye; S. J. Yuan; S. Aswartham; S. V. Streltsov; D. I. Khomskii; R. K. Kaul; G. Cao

doi:10.1103/PhysRevB.90.161110

Lattice-tuned magnetism of Ru4+(4d4) ions in single crystals of the layered honeycomb ruthenates Li2RuO3 and Na2RuO3

J. C. Wang
, J. Terzic
, T. F. Qi
, Feng Ye
, S. J. Yuan
, S. Aswartham
, S. V. Streltsov
, D. I. Khomskii
, R. K. Kaul
, G. Cao

Single Crystal Diffraction

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

56 Scopus citations

Abstract

We synthesize and study single crystals of the layered honeycomb lattice Mott insulators Na2RuO3 and Li2RuO3 with magnetic Ru4+(4d4) ions. The newly found Na2RuO3 features a nearly ideal honeycomb lattice and orders antiferromagnetically at 30 K. Single crystals of Li2RuO3 adopt a honeycomb lattice with either C2/m or more distorted P21/m below 300 K, depending on detailed synthesis conditions. We find that Li2RuO3 in both structures hosts a well-defined magnetic state, in contrast to the singlet ground state found in polycrystalline Li2RuO3. A phase diagram generated based on our results uncovers a new, direct correlation between the magnetic ground state and basal-plane distortions in the honeycomb ruthenates.

Original language	English
Article number	161110
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	90
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.90.161110
State	Published - Oct 29 2014

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Wang, J. C., Terzic, J., Qi, T. F., Ye, F., Yuan, S. J., Aswartham, S., Streltsov, S. V., Khomskii, D. I., Kaul, R. K., & Cao, G. (2014). Lattice-tuned magnetism of Ru4+(4d4) ions in single crystals of the layered honeycomb ruthenates Li2RuO3 and Na2RuO3. Physical Review B - Condensed Matter and Materials Physics, 90(16), Article 161110. https://doi.org/10.1103/PhysRevB.90.161110

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title = "Lattice-tuned magnetism of Ru4+(4d4) ions in single crystals of the layered honeycomb ruthenates Li2RuO3 and Na2RuO3",

abstract = "We synthesize and study single crystals of the layered honeycomb lattice Mott insulators Na2RuO3 and Li2RuO3 with magnetic Ru4+(4d4) ions. The newly found Na2RuO3 features a nearly ideal honeycomb lattice and orders antiferromagnetically at 30 K. Single crystals of Li2RuO3 adopt a honeycomb lattice with either C2/m or more distorted P21/m below 300 K, depending on detailed synthesis conditions. We find that Li2RuO3 in both structures hosts a well-defined magnetic state, in contrast to the singlet ground state found in polycrystalline Li2RuO3. A phase diagram generated based on our results uncovers a new, direct correlation between the magnetic ground state and basal-plane distortions in the honeycomb ruthenates.",

author = "Wang, \{J. C.\} and J. Terzic and Qi, \{T. F.\} and Feng Ye and Yuan, \{S. J.\} and S. Aswartham and Streltsov, \{S. V.\} and Khomskii, \{D. I.\} and Kaul, \{R. K.\} and G. Cao",

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

year = "2014",

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doi = "10.1103/PhysRevB.90.161110",

language = "English",

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T1 - Lattice-tuned magnetism of Ru4+(4d4) ions in single crystals of the layered honeycomb ruthenates Li2RuO3 and Na2RuO3

AU - Wang, J. C.

AU - Terzic, J.

AU - Qi, T. F.

AU - Ye, Feng

AU - Yuan, S. J.

AU - Aswartham, S.

AU - Streltsov, S. V.

AU - Khomskii, D. I.

AU - Kaul, R. K.

AU - Cao, G.

PY - 2014/10/29

Y1 - 2014/10/29

N2 - We synthesize and study single crystals of the layered honeycomb lattice Mott insulators Na2RuO3 and Li2RuO3 with magnetic Ru4+(4d4) ions. The newly found Na2RuO3 features a nearly ideal honeycomb lattice and orders antiferromagnetically at 30 K. Single crystals of Li2RuO3 adopt a honeycomb lattice with either C2/m or more distorted P21/m below 300 K, depending on detailed synthesis conditions. We find that Li2RuO3 in both structures hosts a well-defined magnetic state, in contrast to the singlet ground state found in polycrystalline Li2RuO3. A phase diagram generated based on our results uncovers a new, direct correlation between the magnetic ground state and basal-plane distortions in the honeycomb ruthenates.

AB - We synthesize and study single crystals of the layered honeycomb lattice Mott insulators Na2RuO3 and Li2RuO3 with magnetic Ru4+(4d4) ions. The newly found Na2RuO3 features a nearly ideal honeycomb lattice and orders antiferromagnetically at 30 K. Single crystals of Li2RuO3 adopt a honeycomb lattice with either C2/m or more distorted P21/m below 300 K, depending on detailed synthesis conditions. We find that Li2RuO3 in both structures hosts a well-defined magnetic state, in contrast to the singlet ground state found in polycrystalline Li2RuO3. A phase diagram generated based on our results uncovers a new, direct correlation between the magnetic ground state and basal-plane distortions in the honeycomb ruthenates.

UR - https://www.scopus.com/pages/publications/84912036131

U2 - 10.1103/PhysRevB.90.161110

DO - 10.1103/PhysRevB.90.161110

M3 - Article

AN - SCOPUS:84912036131

SN - 1098-0121

VL - 90

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 16

M1 - 161110

ER -

Lattice-tuned magnetism of Ru4+(4d4) ions in single crystals of the layered honeycomb ruthenates Li2RuO3 and Na2RuO3

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