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Thematische Bibliographien / Kagome layers

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Auswahl der wissenschaftlichen Literatur zum Thema „Kagome layers“

Autor: Grafiati

Veröffentlicht am 21. Dezember 2024

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Zeitschriftenartikel zum Thema "Kagome layers"

1

Xie, Sheng-Yi, Xian-Bin Li, Wei Quan Tian, et al. "A novel two-dimensional MgB6 crystal: metal-layer stabilized boron kagome lattice." Physical Chemistry Chemical Physics 17, no. 2 (2015): 1093–98. http://dx.doi.org/10.1039/c4cp03728f.

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Based on first-principles calculations, we designed for the first time a boron-kagome-based two-dimensional MgB<sub>6</sub> crystal, in which two boron kagome layers sandwich a triangular magnesium layer.

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2

Gautam, Rinoj, and Sridhar Idapalapati. "Compressive Properties of Additively Manufactured Functionally Graded Kagome Lattice Structure." Metals 9, no. 5 (2019): 517. http://dx.doi.org/10.3390/met9050517.

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Cellular lattice structures have important applications in aerospace, automobile and defense industries due to their high specific strength, modulus and energy absorption. Additive manufacturing provides the design freedom to fabricate complex cellular structures. This study investigates the compressive properties and deformation behavior of a Ti-6Al-4V unit Kagome structure fabricated by selective laser melting. Further, the mechanical performance of multi-unit and multi-layer Kagome structure of acrylonitrile butadiene styrene (ABS) ABS-M30™ manufactured by fused deposition modeling is explored. The effect of a number of layers of Kagome structure on the compressive properties is investigated. This paper also explores the mechanical properties of functionally graded and uniform density Kagome structure. The stiffness of the structure decreased with the increase in the number of layers whereas no change in peak load was observed. The functionally graded Kagome structure provided 35% more energy absorption than the uniform density structure.

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3

Yang, Yuxin, Wenhui Fan, Qinghua Zhang, et al. "Discovery of Two Families of Vsb-Based Compounds with V-Kagome Lattice." Chinese Physics Letters 38, no. 12 (2021): 127102. http://dx.doi.org/10.1088/0256-307x/38/12/127102.

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We report the structure and physical properties of two newly discovered compounds AV8Sb12 and AV6Sb6 (A = Cs, Rb), which have C 2 (space group: Cmmm) and C 3 (space group: R 3 ¯ m ) symmetry, respectively. The basic V-kagome unit appears in both compounds, but stacking differently. A V2Sb2 layer is sandwiched between two V3Sb5 layers in AV8Sb12, altering the V-kagome lattice and lowering the symmetry of kagome layer from hexagonal to orthorhombic. In AV6Sb6, the building block is a more complex slab made up of two half-V3Sb5 layers that are intercalated by Cs cations along the c-axis. Transport property measurements demonstrate that both compounds are nonmagnetic metals, with carrier concentrations at around 1021 cm−3. No superconductivity has been observed in CsV8Sb12 above 0.3 K under in situ pressure up to 46 GPa. Compared to CsV3Sb5, theoretical calculations and angle-resolved photoemission spectroscopy reveal a quasi-two-dimensional electronic structure in CsV8Sb12 with C 2 symmetry and no van Hove singularities near the Fermi level. Our findings will stimulate more research into V-based kagome quantum materials.

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4

Lee, Jeong-Eun, Ulrich Burkhardt, and Alexander Christoph Komarek. "Synthesis of a New Ruthenate Ba26Ru12O57." Crystals 10, no. 5 (2020): 355. http://dx.doi.org/10.3390/cryst10050355.

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Single crystals of Ba 26 Ru 12 O 57 were grown by the floating zone method. The crystal structure is formed by an alternating stacking of pseudo-hexagonal Ru single layers and double layers. The Ru ions within the double layers are dimerized (Ru 2 O 9 ) whereas the Ru ions within the single layers arrange in a distorted Kagome lattice of trigonal bipyramidally coordinated RuO 5 polyhedra. Additionally, this Kagome lattice is “decorated” with RuO 6 octahedra that are situated in the central free spaces within this Kagome lattice. According to the composition, the oxidation state of most of the Ru ions should be formally close to 5+.

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5

Wulff, L., and Hk Müller-Buschbaum. "Isolierte trigonale SrO6 – Prismen verknüpfen Kagome-Netze im Strontium-Manganat(IV)-Tellurat(VI): SrMnTeO6 / Kagomé Layers Connected by Isolated Trigonal SrO6 Prisms in the Strontium Manganate(IV) Tellurate(VI): SrMnTeO6 L." Zeitschrift für Naturforschung B 53, no. 3 (1998): 283–86. http://dx.doi.org/10.1515/znb-1998-0305.

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Abstract Single crystals of the hitherto unknown compound SrMnTeO6 have been prepared from Sr(OH)2 ·8H2O , MnCO3(aq) and TeO2 in air by crystallization below the melt range. X-ray investigations showed hexagonal symmetry, space group D33h -P6̅2m, lattice constants a = 5.143( 1), c = 5.384(2) A, Z = 1. SrMnTeO6 is characterized by staggered [(Mn/Te)6O18] Kagome layers along [001]. These layers are connected by Sr2+ ions, resulting in SrO6 prisms isolated from each other. The structure is discussed with respect to the connection of Kagome nets in the quaternary oxides of the Ba3Ln4O9 type.

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6

Yin, Qiangwei, Zhijun Tu, Chunsheng Gong, Shangjie Tian, and Hechang Lei. "Structures and physical properties of v-based kagome metals csv₆sb₆ and csv₈sb₁₂ *." Chinese Physics Letters 38, no. 12 (2021): 127401. http://dx.doi.org/10.1088/0256-307x/38/12/127401.

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We report two new members of V-based kagome metals CsV6Sb6 and CsV8Sb12. The most striking structural feature of CsV6Sb6 is the V kagome bilayers. For CsV8Sb12, there is an intergrowth of two-dimensional V kagome layers and one-dimensional V chains, and the latter ones lead to the orthorhombic symmetry of this material. Further measurements indicate that these two materials exhibit metallic and Pauli paramagnetic behaviors. More importantly, different from CsV3Sb5, the charge density wave state and superconductivity do not emerge in CsV6Sb6 and CsV8Sb12 when temperature is above 2 K. Small magnetoresistance with saturation behavior and linear field dependence of Hall resistivity at high field and low temperature suggest that the carriers in both materials should be uncompensated with much different concentrations. The discovery of these two new V-based kagome metals sheds light on the exploration of correlated topological materials based on kagome lattice.

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7

Aidoudi, Farida H., Lewis J. Downie, Russell E. Morris, Mark A. de Vries, and Philip Lightfoot. "A hybrid vanadium fluoride with structurally isolated S = 1 kagome layers." Dalton Trans. 43, no. 17 (2014): 6304–7. http://dx.doi.org/10.1039/c4dt00452c.

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8

Yang, Ming, Su-Yun Zhang, Wen-Bin Guo, Ying-Ying Tang, and Zhang-Zhen He. "Spin-frustration in a new spin-1/2 oxyfluoride system (Cu13(VO4)4(OH)10F4) constructed by alternatively distorted kagome-like and triangular lattices." Dalton Transactions 44, no. 35 (2015): 15396–99. http://dx.doi.org/10.1039/c5dt02752g.

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9

Sun, Yu-Wei, Zhan-Wei Li, and Zhao-Yan Sun. "Multiple 2D crystal structures in bilayered lamellae from the direct self-assembly of 3D systems of soft Janus particles." Physical Chemistry Chemical Physics 24, no. 13 (2022): 7874–81. http://dx.doi.org/10.1039/d1cp05894k.

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Multiple highly-ordered 2D crystal structures, including a triangular lattice, kagome lattice, and even a Frank–Kasper σ phase, are found within the layers of bilayered lamellae self-assembled directly from 3D systems of soft Janus particles.

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10

Mu, Chao, Qiangwei Yin, Zhijun Tu, et al. "Tri-hexagonal charge order in kagome metal CsV₃Sb₅ revealed by ¹²¹Sb nuclear quadrupole resonance." Chinese Physics B 31, no. 1 (2022): 017105. http://dx.doi.org/10.1088/1674-1056/ac422c.

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We report 121Sb nuclear quadrupole resonance (NQR) measurements on kagome superconductor CsV3Sb5 with T c = 2.5 K. 121Sb NQR spectra split after a charge density wave (CDW) transition at 94 K, which demonstrates a commensurate CDW state. The coexistence of the high temperature phase and the CDW phase between 91 K and 94 K manifests that it is a first order phase transition. The CDW order exhibits tri-hexagonal deformation with a lateral shift between the adjacent kagome layers, which is consistent with 2 × 2 × 2 superlattice modulation. The superconducting state coexists with CDW order and shows a conventional s-wave behavior in the bulk state.

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