Stacking Faults and Short-Range Magnetic Correlations in Single Crystal Y5Ru2O12: A Structure with Ru+4.5 One-Dimensional Chains

Liurukara D. Sanjeewa; Yaohua Liu; Jie Xing; Randy S. Fishman; Mudithangani T.K. Kolambage; Michael A. McGuire; Colin D. McMillen; Joseph W. Kolis; Athena S. Sefat

doi:10.1002/pssb.202000197

Stacking Faults and Short-Range Magnetic Correlations in Single Crystal Y₅Ru₂O₁₂: A Structure with Ru^+4.5 One-Dimensional Chains

Liurukara D. Sanjeewa, Yaohua Liu, Jie Xing, Randy S. Fishman, Mudithangani T.K. Kolambage, Michael A. McGuire, Colin D. McMillen, Joseph W. Kolis, Athena S. Sefat

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6 Scopus citations

Abstract

The synthesis, structure, and physical properties of Y₅Ru₂O₁₂, a new member of the Ln₅B₂O₁₂ class (Ln = lanthanide, B = Ru, Re, Mo) are reported. Single crystals of Y₅Ru₂O₁₂ are synthesized using a high-temperature, high-pressure (700 °C, 200 MPa) hydrothermal method. The structure features edge-sharing Ru-O-Ru 1D chains of distorted RuO₆ octahedra. The YO_n (n = 6 and 7) polyhedral groups bridge Ru-O-Ru chains across the unit cell by forming a complex 3D structure. The Ru-O-Ru chains contain alternating shorter and longer Ru-Ru distances along the chain. Single crystal neutron diffraction shows streak-like diffuse scattering along the H-direction, due to stacking faults. Temperature-dependent anisotropic magnetic measurements reveal a broad feature over a wide temperature range, with a maximum at ≈70 K indicating potential short-range ordering, with canted antiferromagnetic behavior below 30 K. The dominant magnetic interactions are antiferromagnetic with a large negative Weiss temperature θ ≈ −200 K. The compound has an effective magnetic moment that is anomalously large for this class of compounds (≈4 μ_B Ru⁻¹), and a phenomenological spin Hamiltonian describing the unusual anisotropic magnetization of Y₅Ru₂O₁₂ is proposed.

Original language	English
Article number	2000197
Journal	Physica Status Solidi (B) Basic Research
Volume	258
Issue number	2
DOIs	https://doi.org/10.1002/pssb.202000197
State	Published - Feb 2021

Funding

The research at the Oak Ridge National Laboratory (ORNL) is supported by the USA. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Materials Sciences and Engineering Division (MSE). This research used resources at Spallation Neutron Source, a DOE office of Science User Facility operated by ORNL. The synthesis and single-crystal X-ray diffraction were performed at Clemson University and funded by the National Science Foundation under Grant DMR-1808371. The research at the Oak Ridge National Laboratory (ORNL) is supported by the USA. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Materials Sciences and Engineering Division (MSE). This research used resources at Spallation Neutron Source, a DOE office of Science User Facility operated by ORNL. The synthesis and single‐crystal X‐ray diffraction were performed at Clemson University and funded by the National Science Foundation under Grant DMR‐1808371.

Funders	Funder number
National Science Foundation	1808371, DMR‐1808371
U.S. Department of Energy
Office of Science
Basic Energy Sciences
Oak Ridge National Laboratory
Division of Materials Sciences and Engineering

Keywords

crystal growth
hydrothermal synthesis
magnetic ordering
neutron diffraction
ruthenium oxide

Access to Document

10.1002/pssb.202000197

Cite this

Sanjeewa, L. D., Liu, Y., Xing, J., Fishman, R. S., Kolambage, M. T. K., McGuire, M. A., McMillen, C. D., Kolis, J. W., & Sefat, A. S. (2021). Stacking Faults and Short-Range Magnetic Correlations in Single Crystal Y₅Ru₂O₁₂: A Structure with Ru^+4.5 One-Dimensional Chains. Physica Status Solidi (B) Basic Research, 258(2), Article 2000197. https://doi.org/10.1002/pssb.202000197

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abstract = "The synthesis, structure, and physical properties of Y5Ru2O12, a new member of the Ln5B2O12 class (Ln = lanthanide, B = Ru, Re, Mo) are reported. Single crystals of Y5Ru2O12 are synthesized using a high-temperature, high-pressure (700 °C, 200 MPa) hydrothermal method. The structure features edge-sharing Ru-O-Ru 1D chains of distorted RuO6 octahedra. The YOn (n = 6 and 7) polyhedral groups bridge Ru-O-Ru chains across the unit cell by forming a complex 3D structure. The Ru-O-Ru chains contain alternating shorter and longer Ru-Ru distances along the chain. Single crystal neutron diffraction shows streak-like diffuse scattering along the H-direction, due to stacking faults. Temperature-dependent anisotropic magnetic measurements reveal a broad feature over a wide temperature range, with a maximum at ≈70 K indicating potential short-range ordering, with canted antiferromagnetic behavior below 30 K. The dominant magnetic interactions are antiferromagnetic with a large negative Weiss temperature θ ≈ −200 K. The compound has an effective magnetic moment that is anomalously large for this class of compounds (≈4 μB Ru−1), and a phenomenological spin Hamiltonian describing the unusual anisotropic magnetization of Y5Ru2O12 is proposed.",

keywords = "crystal growth, hydrothermal synthesis, magnetic ordering, neutron diffraction, ruthenium oxide",

author = "Sanjeewa, {Liurukara D.} and Yaohua Liu and Jie Xing and Fishman, {Randy S.} and Kolambage, {Mudithangani T.K.} and McGuire, {Michael A.} and McMillen, {Colin D.} and Kolis, {Joseph W.} and Sefat, {Athena S.}",

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AU - Liu, Yaohua

AU - Xing, Jie

AU - Fishman, Randy S.

AU - Kolambage, Mudithangani T.K.

AU - McGuire, Michael A.

AU - McMillen, Colin D.

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AU - Sefat, Athena S.

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