Articles with "triangular lattice" as a keyword



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Phase Transitions in Spin-1/2 Falicov–Kimball Model on a Two-dimensional Triangular Lattice

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Published in 2017 at "Journal of Low Temperature Physics"

DOI: 10.1007/s10909-017-1793-z

Abstract: Phase transitions from low-temperature (ordered) phases to high-temperature (disordered/homogeneous) phases for different fillings are studied on a triangular lattice using the spin-dependent Falicov–Kimball model. Numerical diagonalization and Monte Carlo simulation methods are used to study… read more here.

Keywords: triangular lattice; temperature; phase transitions; kimball model ... See more keywords
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The nontrivial ground state topology in the coexistence phase of chiral d-wave superconductivity and 120-degree magnetic order on a triangular lattice

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Published in 2017 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2017.11.115

Abstract: Abstract The Z 2 topological invariant is defined in the chiral d-wave superconductor having a triangular lattice in the presence of the 120-degree magnetic ordering. Analyzing the Z 2 invariant, we determine the conditions of… read more here.

Keywords: triangular lattice; 120 degree; degree magnetic; topology ... See more keywords
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Triangular-Lattice Organic Mott Insulator with a Disorder-Free Polyanion.

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Published in 2020 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.0c00880

Abstract: We report the synthesis, crystal and band structures, and transport properties of organic conductor κ-(ET)2Cu[Au(CN)2]Cl [ET = bis(ethylenedithio)tetrathiafulvalene], which has a triangular spin-lattice (S = 1/2) composed of (ET)2•+ dimers and polyanions with no disorder.… read more here.

Keywords: triangular lattice; disorder free; lattice organic; lattice ... See more keywords
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Three-state nematicity in the triangular lattice antiferromagnet Fe1/3NbS2

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Published in 2020 at "Nature Materials"

DOI: 10.1038/s41563-020-0681-0

Abstract: Nematic order is the breaking of rotational symmetry in the presence of translational invariance. While originally defined in the context of liquid crystals, the concept of nematic order has arisen in crystalline matter with discrete… read more here.

Keywords: state; nematic order; triangular lattice; three state ... See more keywords
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The Ising triangular-lattice antiferromagnet neodymium heptatantalate as a quantum spin liquid candidate

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Published in 2021 at "Nature Materials"

DOI: 10.1038/s41563-021-01169-y

Abstract: Disordered magnetic states known as spin liquids are of paramount importance in both fundamental and applied science. A classical state of this kind was predicted for the Ising antiferromagnetic triangular model, while additional non-commuting exchange… read more here.

Keywords: spin liquid; spin; quantum; lattice antiferromagnet ... See more keywords
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REZnAl11O19 (RE = Pr, Nd, Sm–Tb): a new family of ideal 2D triangular lattice frustrated magnets

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Published in 2019 at "Journal of Materials Chemistry C"

DOI: 10.1039/c9tc02643f

Abstract: We report the synthesis, structure and magnetic properties of a new family of rare-earth (RE) based magnetoplumbite-type REZnAl11O19 (RE = Pr–Tb) compounds with space-group P63/mmc. read more here.

Keywords: family; family ideal; triangular lattice; ideal triangular ... See more keywords
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Structure, magnetism and magnetocaloric effect in a new triangular lattice compound Gd3Cu9(OH)19Br8

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Published in 2022 at "RSC Advances"

DOI: 10.1039/d2ra04553b

Abstract: A new triangular lattice compound Gd3Cu9(OH)19Br8 has been synthesized by the hydrothermal method. The structure, magnetism and magnetocaloric effect of Gd3Cu9(OH)19Br8 have been studied by X-ray diffraction, magnetic susceptibility, isothermal magnetization and specific heat measurements.… read more here.

Keywords: compound; magnetocaloric effect; magnetism; triangular lattice ... See more keywords
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Two-dimensional quantum universality in the spin-1/2 triangular-lattice quantum antiferromagnet Na2BaCo(PO4)2.

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Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.2211193119

Abstract: An interplay of geometrical frustration and strong quantum fluctuations in a spin-1/2 triangular-lattice antiferromagnet (TAF) can lead to exotic quantum states. Here, we report the neutron-scattering, magnetization, specific heat, and magnetocaloric studies of the recently… read more here.

Keywords: two dimensional; quantum; spin triangular; na2baco po4 ... See more keywords
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Frustrated magnetism of the triangular-lattice antiferromagnets α-CrOOH and α-CrOOD

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Published in 2021 at "New Journal of Physics"

DOI: 10.1088/1367-2630/abe813

Abstract: We report a comprehensive investigation of the frustrated magnetism on the delafossite oxides, α-CrOOH and α-CrOOD, which experimentally realize the S = 3/2 nearly-Heisenberg antiferromagnetic (J 1 > 0) model on a triangular lattice with… read more here.

Keywords: crood; crooh crood; frustrated magnetism; triangular lattice ... See more keywords
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Density matrix renormalization group study of superconductivity in the triangular lattice Hubbard model

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Published in 2019 at "Physical Review B"

DOI: 10.1103/physrevb.100.060506

Abstract: With the discovery of strong coupling physics and superconductivity in Moir\'e superlattices, it's essential to have an understanding of strong coupling driven superconductivity in systems with trigonal symmetry. The simplest lattice model with trigonal symmetry… read more here.

Keywords: superconductivity; hubbard model; lattice; lattice hubbard ... See more keywords
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Quantum spin liquid ground state in the disorder free triangular lattice NaYbS2

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Published in 2019 at "Physical Review B"

DOI: 10.1103/physrevb.100.241116

Abstract: Rare-earth delafossites were recently proposed as promising candidates for the realization of an effective $S$=1/2 quantum spin liquid (QSL) on the triangular lattice. In contrast to the most actively studied triangular-lattice antiferromagnet YbMgGaO$_4$, which is… read more here.

Keywords: spin liquid; lattice; ground state; triangular lattice ... See more keywords