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Spin liquids on kagome lattice and symmetry protected... - PIRSA.
Li doped kagome spin liquid compounds - The College of.
Evidence for a gapped spin-liquid ground state in a kagome Heisenberg.
Electron Doping a Kagome Spin Liquid (Journal Article) | DOE PAGES.
Identifying spinon excitations from dynamic structure factor.
[PDF] Quantum spin-liquid behavior in the spin-1/2 random-bond.
Electron doping a kagome spin liquid (Journal Article) | DOE PAGES.
Thermodynamics of spin-1/2 Kagomé Heisenberg antiferromagnet.
FeMn3Ge2Sn7O16: a perfectly isotropic 2-D kagomé lattice that breaks.
Herbertsmithite - Wikipedia.
Spin-Liquid Ground State of the S = 1/2 Kagome.
Kagome Lattice Quantum Antiferromagnets - George Mason University.
Phys. Rev. Lett. 121, 057202 (2018) - Quantum Spin Liquid.

Spin liquids on kagome lattice and symmetry protected... - PIRSA.

Site-specific structure at multiple length scales in kagome quantum spin liquid candidates. Realizing a quantum spin liquid (QSL) ground state in a real material is a leading issue in condensed matter physics research.... -principles calculations address outstanding questions about the local and long-range structures of the two leading kagome.

Li doped kagome spin liquid compounds - The College of.

Two-dimensional Kagome lattice: Herbertsmithite and Volborthite ZnCu3(OH)6Cl2 and Cu3V2O7(OH)2 2H2O Two-dimensional anisotropic lattice: organic materials κ-(BEDT-TTF)2Cu2(CN)3 and EtMe3Sb[Pd(dmit)2]2 Federico Becca (CNR and SISSA) Quantum Spin Liquids K¨onigstein 7 / 38. Magnetic susceptibility, NMR, muon spin relaxation, and inelastic neutron scattering measurements show that kapellasite, Cu 3 Zn (OH) 6 Cl 2, 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 down to 20 mK. Kagome Spin Liquid. Assa Auerbach Ranny Budnik Erez Berg. Triangular. Kagome. a. a. b. c. b. O(3)xO(2)/O(2) -> O(4) critical pt. b. a. c. b.... S=3/2 layered Kagome. '90. Slideshow... Browse. Recent Presentations Content Topics Updated Contents Featured Contents. PowerPoint Templates. Create. Presentation Survey Quiz Lead-form E-Book.

Evidence for a gapped spin-liquid ground state in a kagome Heisenberg.

Jul 20, 2012 · 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. Dec 19, 2012 · Kagome lattices are one of the simplest structures believed to possess a spin liquid state, and the new findings, revealed by neutron scattering, indeed show striking evidence for a fundamental prediction of spin liquid physics. Generally, magnetism results from the magnetic moment, also called spin, of electrons within atoms. Nov 06, 2015 · This information is critical for comparatively evaluating the leading theories on the ground state of the S = 1/2 KHA: a gapped spin liquid, gapless spin liquid, or valence-bond solid ( 1, 2, 9 – 14) Fig. 1 Kagome lattice and the structure of ZnCu 3 (OH) 6 Cl 2. ( A) A kagome lattice formed by corner-shared triangles.

Electron Doping a Kagome Spin Liquid (Journal Article) | DOE PAGES.

Quantum spin liquids (QSLs) are exotic phases of matter that host fractionalized excitations. It is difficult for local probes to characterize QSL, whereas quantum entanglement can serve as a powerful diagnostic tool due to its nonlocality. The kagome antiferromagnetic Heisenberg model is one of the most studied and experimentally relevant. Among them, the Kagome antiferromagnet (KAFM) herbertsmithite (8–11) is one of the most promising spin liquid candidates. A possible magnetic order of this material has been excluded down to temperatures a few orders of magnitude below the coupling energy scale ( 9 , 10 ).

Identifying spinon excitations from dynamic structure factor.

Sep 05, 2014 · The strongest spin frustration was considered to occur in a S = 1/2 kagome Heisenberg antiferromagnet (KHA), on which extensive theoretical studies were performed and many novel quantum spin liquid (QSL) ground states were proposed [5–10]. Fermi-liquid-like low-energy excitations, such as the linear temperature dependence of heat capacity and.

[PDF] Quantum spin-liquid behavior in the spin-1/2 random-bond.

Roychowdhury et al. studied the transition from the even Z 2 spin liquid into the nematic phase. The visons in this Z 2 spin liquid have an energy dispersion with minima at M 1 = (π / 2, − π / (2 3)) = b 1 / 2, M 2 = (0, π / 3) = b 2 / 2 , and their condensation leads to the nematic ordering for which the dominant wavevectors are b 1, b 2. The spin-1/2 Heisenberg model on the kagome lattice, a two-dimensional lattice formed by corner sharing triangles, is an intensively studied frustrated model. From early on it was recognized that the ground state of the nearest neighbor kagome lattice antiferromagnet is a non-magnetic state, although it is not clear whether it is a QSL [ 4 ] or a valence-bond-solid [ 5 ]. 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,.

Electron doping a kagome spin liquid (Journal Article) | DOE PAGES.

Abstract. After introducing the field of Highly Frustrated Magnetism through the quest for a quantum spin liquid in dimension higher than one, we focus on the emblematic case of the kagome network. From a theoretical point of view, the simple Heisenberg case for an antiferromagnetic kagome lattice decorated with quantum spins has been a long. Aug 22, 2018 · Herbertsmithite and Zn-doped barlowite are two compounds for experimental realization of two-dimensional kagome spin liquids. Theoretically, it has been proposed that charge doping a quantum spin liquid gives rise to exotic metallic states, such as high-temperature superconductivity. However, one re.

Thermodynamics of spin-1/2 Kagomé Heisenberg antiferromagnet.

Cond matCondensed Matter New submissionsSubmissions received from Mon Jul Tue Jul 22, announced Wed, Jul 22New submissionsCross listsReplacements total 114 entries 114 showing 1000 entries per page fewer more New. 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 model for a CSL as a lattice gauge theory, and. Dec 15, 2018 · 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.

FeMn3Ge2Sn7O16: a perfectly isotropic 2-D kagomé lattice that breaks.

As a close realization of the S = 1/2 kagome Heisenberg antiferromagnet, herbertsmithite (ZnCu 3 (OH) 6 Cl 2 ) is an emblematic quantum spin liquid candidate. We have measured the thermal conductivity of several protonated and deuterated single crystals of herbertsmithite, over a wide range of temperature (0.05 - 120 K) and magnetic field (0 - 15 T).

Herbertsmithite - Wikipedia.

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. The Spin-1/2 Kagome Lattice For S=1=2 kagome, the leading proposals are the 36-site VBS and the U(1) Dirac spin liquid. The 36-site VBS pattern is found in series expansion [Singh and Huse, PRB 76, 180407 (2007)] and entanglement renormalization [Evenbly and Vidal, arXiv:0904.3383]. From VMC, the U(1) Dirac spin liquid (DSL). A density-matrix renormalization group (DMRG) study of the S=1/2 Heisenberg antiferromagnet on the kagome lattice is performed to identify the conjectured spin liquid ground state, ruling out gapless, chiral, or nontopological spin liquids in favor of a topological spin liquid of quantum dimension 2. Expand.

Spin-Liquid Ground State of the S = 1/2 Kagome.

Kagome Heisenberg model Spin liquids on kagome lattice Kagome spin liquid "Dirac spin liquid" (conformal/critical phase) What is the ground state? Yan, Huse, and White YCH, Zaletel, Oshikawa, Pollmann (to appear) QED3 a µ L = X ¯ i [iµ (@ µ ia µ)] i Hastings; Ran, Hermele, Lee & Wen.

Kagome Lattice Quantum Antiferromagnets - George Mason University.

[30, 31]) The spin-liquid state can also be obtained on the Kagomé lattice with antiferromagnetic nearest-neighbor couplings like, e.g., in the naturally occurring quasi-2D Herbertsmithite. In this article, we report on the successful synthesis of a S = 5/2 Kagomé lattice arising as a self-organized metal-organic monolayer on the Ag(111) surface. Canted AF → spin liquid. Helton et al.,PRL (2007)... • Latest NMR data indicate that there is a spin gap of about 1 meV for the kagome layers, which are likely. Apr 19, 2016 · 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.

Phys. Rev. Lett. 121, 057202 (2018) - Quantum Spin Liquid.

Herbertsmithite and Zn-doped barlowite are two compounds for experimental realization of two-dimensional kagome spin liquids. Theoretically, it has been proposed that charge doping a quantum spin liquid gives rise to exotic metallic states, such as high-Temperature superconductivity. However, one recent experiment on herbertsmithite 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. We answer these questions for a geometrically frustrated spin ladder model. It has the feature of having infinitely many conserved quantities that aid the solution. We find classical zero modes all get lifted by quantum fluctuations and the system is left with a unique rung singlet ground state -- a trivial quantum spin liquid.