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Re-investigation of Moment Direction in a Kitaev Material $\alpha$-RuCl$_{3}$

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arxiv 2403.04176 v1 pith:Y2FJAF3F submitted 2024-03-07 cond-mat.str-el

Subin Kim , Ezekiel Horsley , Christie Nelson , Jacob Ruff , Young-June Kim This is my paper · ORCID
classification cond-mat.str-el
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abstract

We report X-ray diffraction and resonant elastic X-ray scattering (REXS) studies on two $\alpha$-RuCl$_{3}$ crystals with distinct magnetic transition temperatures: T$_{N}$=7.3K and 6.5K. We find that the sample with T$_{N}$=6.5K exhibits a high degree of structural twinning at low temperature, whereas the T$_{N}$=7.3K sample primarily comprises a single domain of R$\bar{3}$. Notwithstanding, both samples exhibit an identical zigzag magnetic structure, with magnetic moments pointing away from the honeycomb plane by $\alpha=31(2)^{\circ}$. We argue that the identical ordered moment directions in these samples suggest that the intralayer magnetic Hamiltonian remains mostly unchanged regardless of T$_{N}$.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Magnetic excitations in biaxial-strain detwinned $\alpha$-RuCl$_{3}$

    cond-mat.str-el 2025-09 conditional novelty 6.0 of 10

    In detwinned alpha-RuCl3, low-energy magnons arise at M points transverse to the zigzag Bragg peaks, and a sixfold-symmetric continuum up to 16 meV is attributed to fractionalized Kitaev excitations.

  2. The Saga of $\alpha$-RuCl$_3$: Parameters, Models, and Phase Diagrams

    cond-mat.str-el 2025-02 conditional novelty 6.0 of 10

    Using the tilt angle, high-field ESR gap, and critical-field difference, the authors constrain the anisotropic exchanges of the effective spin model of alpha-RuCl3 and identify two counter-rotating helical phases near...

  3. Coexistence of Commensurate and Incommensurate Antiferromagnetic Groundstates in Co$_x$NbSe$_2$ Single Crystal

    cond-mat.mtrl-sci 2024-12 conditional novelty 6.0 of 10

    Co0.28NbSe2 single crystals show both a 169 K A-type antiferromagnetic phase and a 28 K lower-temperature phase whose spin structure was solved for the first time in powder.

  4. On the multi-$\mathbf{q}$ characteristics of magnetic ground states of honeycomb cobalt oxides

    cond-mat.str-el 2025-01 conditional novelty 4.0 of 10

    The magnetic ground states of Na2Co2TeO6 and Na3Co2SbO6 are argued to be triple-q and double-q zigzag variants, implying higher-order spin interactions beyond standard bilinear models.

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