- Li doped kagome spin liquid compounds - PubMed.
- Gapless spin liquid in a square-kagome lattice antiferromagnet.
- Site-specific structure at multiple length scales in kagome quantum.
- Quantum kagome frustrated antiferromagnets: One route to quantum spin.
- Topological thermal Hall effect for topological excitations in spin.
- Evidence for a Gapped Spin-Liquid Ground State in a Kagome Heisenberg.
- Kagome spin liquid: a deconfined critical phase driven by $U(1)$ gauge.
- Valence bond solid and spin liquid phases in kagome lattice.
- [PDF] Competing Spin Liquid Phases in the S=$\frac{1}{2}$ Heisenberg.
- (PDF) Kapellasite: A Kagome Quantum Spin Liquid with.
- Topological Nematic Spin Liquid on the Square-Kagome Lattice.
- [2111.04549] Magnetic properties of a capped kagome molecule with 60.
- PDF Perturbing the U(1) Dirac Spin Liquid State in Spin-1/2 kagome.
- Gapless Spin-Liquid Ground State in the S=1 2 Kagome.
Li doped kagome spin liquid compounds - PubMed.
We investigate the nature of quantum spin liquid (QSL) phase of the spin-$1/2$ nearest-neighbor XXZ antiferromagnet on the kagome lattice. Recent numerical calculations suggest that such a kagome spin liquid is insensitive to the XXZ anisotropy and is adjacent to a chiral spin liquid phase.
Gapless spin liquid in a square-kagome lattice antiferromagnet.
Gapless spin liquid in a square-kagome lattice antiferromagnet. Masayoshi Fujihala ORCID: 1, Katsuhiro Morita 2, Richard Mole 3, Setsuo Mitsuda 1,. Canted AF → spin liquid. Helton et al.,PRL (2007) Specific heat indicates gapless behavior. But, there is a large spin defect concentration... • Latest NMR data indicate that there is a spin gap of about 1 meV for the kagome layers, which are likely defect free • Divergent response below 1 meV due to spins from Cu. The present work provides a unifying theory of kagome spin liquids with time-reversal invariant nearest-neighbour Hamiltonians.... taking an enhanced flavour in the so-called spin-liquid phases where magnetic disorder prevails. Kagome systems sit at the crossroad of these ideas. Motivated by the recent synthesis of rare-earth kagome materials.
Site-specific structure at multiple length scales in kagome quantum.
Chiral and Critical Spin Liquids in Spin-$1/2$ Kagome Antiferromagnet. The topological quantum spin liquids (SL) and the nature of quantum phase transitions between them have attracted intensive attentions for the past twenty years. The extended kagome spin-1/2 antiferromagnet emerges as the primary candidate for hostin.
Quantum kagome frustrated antiferromagnets: One route to quantum spin.
A quantum spin liquid is a hypothesized ground state of a magnet without long-range magnetic order. Similar to a liquid, which is spatially uniform and strongly correlated, a quantum spin liquid preserves all the symmetries and exhibits strong correlations between spins. First proposed by P. W. Anderson in 1973, it has remained a conjecture. Cl2, is a two-dimensional kagome lattice realization of a spin liquid, with evidence for fractionalized excitations and a gapped ground state. Such a quantum spin liquid has been proposedtounderliehigh-temperaturesuperconductivityandispredictedtoproduceawealthofnewstates, including a Dirac.
Topological thermal Hall effect for topological excitations in spin.
A symmetry-based analysis (projective symmetry group) is used to study spin-liquid phases on the triangular and Kagom\\'e lattices in the Schwinger boson framework. A maximum of eight distinct ${Z}_{2}$ spin-liquid states are found for each lattice, which preserve all symmetries. Out of these only a few have nonvanishing nearest-neighbor amplitudes, which are studied in greater detail. On the.
Evidence for a Gapped Spin-Liquid Ground State in a Kagome Heisenberg.
Magnetic susceptibility, NMR, muon spin relaxation, and inelastic neutron scattering measurements show that kapellasite, Cu3Zn(OH)6Cl2, a geometrically frustrated spin-1/2 kagome antiferromagnet polymorphic with herbertsmithite, is a gapless spin liquid showing unusual dynamic short-range correlations of noncoplanar cuboc2 type which persist.
Kagome spin liquid: a deconfined critical phase driven by $U(1)$ gauge.
In condensed matter physics, a quantum spin liquid is a phase of matter that can be formed by interacting quantum spins in certain magnetic materials.... Kagome type. Ca 10 Cr 7 O 28 is a frustrated Kagome bilayer magnet, which does not develop long-range order even below 1 K,. Fig 2. Physics of creating spin-pairs in a frustrated lattice. Ground state atoms (green dots) are arranged in an edge-Kagome lattice, where each atom sits in the middle of the edges of a Kagome lattice.Once a coherent laser field drives all atoms towards their Rydberg state, Rydberg-Rydberg interactions start playing a role, which prevents neighboring atoms to be both in the Rydberg states. What is a spin liquid as opposed to a spin solid or a spin glass?... Recent DMRG studies of kagome ladders with heisenberg interactions suggest a fully gapped ground state in two dimensions with some kind of Z2 topological order. 2) The organic salt known as dmit appears to host a gapless spin liquid. This material is a charge insulator but.
Valence bond solid and spin liquid phases in kagome lattice.
Our results suggest that the magnetic ground state of YCu 3 (OH) 6 Br 2 [Br 1 − x (OH) x] is consistent with a Dirac quantum-spin-liquid state with a linearly dispersing spinon strongly coupled to an emergent gauge field, which has long been theoretically proposed as a candidate ground state in the two-dimensional kagome Heisenberg.
[PDF] Competing Spin Liquid Phases in the S=$\frac{1}{2}$ Heisenberg.
I will first present our numerical (DMRG) study on the kagome XXZ spin model that exhibits two distinct spin liquid phases, namely the chiral spin liquid and the kagome spin liquid (the groundstate of the nearest neighbor kagome Heisenberg model). Both phases extend from the extreme easy-axis limit, through. SU (2) symmetric point, to the pure. The team designed a numerical experiment on the Kagome spin model (Kagome is a two-dimensional lattice structure that shows a similar pattern to a traditional Japanese woven bamboo pattern in the.
(PDF) Kapellasite: A Kagome Quantum Spin Liquid with.
In conclusion, we have carried out an extensive LTEM measurement over a wide temperature range to uncover the possible spin textures in the centrosymmetric kagome magnet Mn 4 Ga 2 Sn. Our.
Topological Nematic Spin Liquid on the Square-Kagome Lattice.
On the other hand, in 2D spin systems, the spin-1/2 kagome antiferromagnet is an excellent choice for searching for the QSL state induced by geometrical frustration 4. A possible compound for QSL in the kagome antiferromagnets was herbertsmithite, which has the Cu 2+ layers with ideal kagome geometry sandwiched by nonmagnetic Zn 2+ layers 5. While the existence of a chiral spin liquid (CSL) on a class of spin-1/2 kagome antiferromagnets is by now well established numerically, a controlled theoretical path from the lattice model leading to a low-energy topological field theory is still lacking. This we provide via an explicit construction starting from reformulating a microscopic.
[2111.04549] Magnetic properties of a capped kagome molecule with 60.
The phase diagram of the spin-1/2 KHA in the plane of temperature and magnetic field, which consists of the phases including gapless quantum spin liquid (QSL), algebraic paramagnetic liquid, field-induced ordered phase, intermediate (spin canted) phase, and conventional paramagnetic state.
PDF Perturbing the U(1) Dirac Spin Liquid State in Spin-1/2 kagome.
Studied the Li intercalation doping effects of the two kagome spin liquid compounds. In the Li-doped herbertsmithite, it was speculated that Li is located in the Cl–(OH) 3 tetrahedron hole (T-site).28 Based on this structure, singlet trapping and electron localization were proposed to explain the insulating behavior. Abstract. The ground state of the spin −1/2 kagome antiferromagnet remains uncertain despite decades of active research. Here we step aside from this debated question to address the ground-state nature of a related, and potentially just as rich, system made of corner-sharing triangles: the square-kagome lattice (SKL). Magnetic susceptibility, NMR, muon spin relaxation, and inelastic neutron scattering measurements show that kapellasite, Cu3Zn(OH)6Cl2, a geometrically frustrated spin-1/2 kagome antiferromagnet.
Gapless Spin-Liquid Ground State in the S=1 2 Kagome.
A quantum spin liquid (QSL) is an exotic quantum ground state that does not break conventional symmetries and where the spins in the system remain dynamic down to zero temperature. Unlike a trivial paramagnetic state, it features long-range quantum entanglement and supports fractionalized excitations.
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