Strain-induced phase diagram of the 
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 Kitaev material 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi>CrSiTe</mml:mi></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:math>

Zhou, Zongsheng; Chen, Ken; Luo, Qiang; Luo, Hong-Gang; Zhao, Jize

doi:10.1103/physrevb.104.214425

Cited by 7 publications

(1 citation statement)

References 53 publications

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“…Similar to its spin-1/2 counterparts these compounds can also be described by the JKΓΓ model but possibly with an additional single-ion anisotropy (A). Although the sought-after quantum spin liquids are not preferable in these high-spin Kitaev magnets [36], stable TSTs originating from frustration [37][38][39][40][41] are highly desirable. This calls for extensive and immediate studies to search for the TSTs in these high-spin Kitaev magnets.…”

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Triple-meron crystal in high-spin Kitaev magnets

Chen¹,

Luo²,

Zhou³

et al. 2022

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Spin textures with nontrivial topology hold great promise in future spintronics applications since they are robust against local deformations. The meron, as one of such spin textures, is widely believed to appear in pairs due to its topological equivalence to a half skyrmion. Motivated by recent progresses in high-spin Kitaev magnets, here we investigate numerically a classical Kitaev-Γ model with a single-ion anisotropy. An exotic spin texture including three merons is discovered. Such a state features a peculiar property with an odd number of merons in one magnetic unit cell and it can induce the topological Hall effect. Therefore, these merons cannot be dissociated from skyrmions as reported in the literature and a general mechanism for such a deconfinement phenomenon calls for further studies. Our work demonstrates that high-spin Kitaev magnets can host robust unconventional spin textures and thus they offer a versatile platform not only for exploring exotic states in spintronics but also for understanding the deconfinement mechanism in the condensed-matter physics and the field theory.

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confidence: 99%

Triple-meron crystal in high-spin Kitaev magnets

Chen¹,

Luo²,

Zhou³

et al. 2022

Preprint

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Quantum spin-liquid in Ba₃CuSb₂O₉ epitaxial thin films

Kaipamangalath,

Pathak,

Akram

et al. 2024

J. Phys.: Condens. Matter

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Hexagonal perovskite materials are emerging quantum spin liquid systems providing a fertile ground to realize novel quantum phenomena. The epitaxially grown thin films of such materials offer a compelling approach to utilize exotic quantum phases for device applications with better control over the structure. We fabricate the intriguing quantum spin liquid triple perovskite Ba3CuSb2O9 epitaxially onto a MgO (100) substrate by pulsed laser deposition technique as well as in bulk form for comparison. The presence of only (00l) parallel planes of Ba3CuSb2O9 in X-ray diffraction validates the epitaxial growth of the thin film. Temperature-dependent magnetization of thin film reveals no magnetic ordering down to 2 K, with a large antiferromagnetic Curie-Weiss temperature (θCW ≈ − 11.68 K). This indicates strong magnetic frustration and quantum spin liquid behaviour, similar to bulk Ba3CuSb2O9. The presence of magnetic correlations at low temperature (in the quantum spin liquid state) is further confirmed by analysing the low temperature magnetic isotherms. These experimental findings underscore the potential of this quantum material for its use in quantum technologies.

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Triple-meron crystal in high-spin Kitaev magnets

et al. 2023

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Skyrmions hold great promise in future spintronics applications since they are robust against local deformations. The meron, due to its topological equivalence to a half skyrmion, has been widely found to appear in pairs. Motivated by recent progresses in high-spin Kitaev magnets, here we investigate numerically a classical Kitaev-$\Gamma$ model with a single-ion anisotropy. An exotic spin texture consisting of three merons is discovered. Such a state features a peculiar property with an odd number of merons in one magnetic unit cell. Therefore, these merons cannot be dissociated from skyrmions as reported in the literature and their origin is briefly discussed. Moreover, we find that these three merons contribute a finite topological number and thus it can induce the topological Hall effect. Experimentally this spin texture can be observed by the Lorentz transmission electron microscopy and the topological Hall effect can be used to identify the finite topological number. Our work demonstrates that high-spin Kitaev magnets can host robust unconventional spin textures and thus they offer a versatile platform for exploring exotic spin textures as well as their applications in spintronics.

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Strain-induced phase diagram of the S=32 Kitaev material CrSiTe3

Cited by 7 publications

References 53 publications

Triple-meron crystal in high-spin Kitaev magnets

Triple-meron crystal in high-spin Kitaev magnets

Quantum spin-liquid in Ba₃CuSb₂O₉ epitaxial thin films

Triple-meron crystal in high-spin Kitaev magnets

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Strain-induced phase diagram of the S=32 Kitaev material CrSiTe3

Cited by 7 publications

References 53 publications

Triple-meron crystal in high-spin Kitaev magnets

Triple-meron crystal in high-spin Kitaev magnets

Quantum spin-liquid in Ba3CuSb2O9 epitaxial thin films

Triple-meron crystal in high-spin Kitaev magnets

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Product

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Quantum spin-liquid in Ba₃CuSb₂O₉ epitaxial thin films