Spin Gap And Susceptibility Of Spherical Kagome Cluster Mo72V30

Theoretical study of spherical kagomé clusters in Mo 72V30 and.
Theoretical study of quantum spin icosidodecahedron (S = 1=2) with next.
Figure 3 from Canonical-Ensemble Calculations of the Magnetic.
Dimer-dimer Correlations and Magnetothermodynamics.
[{(Mo)Mo5O21(H2O)3(SO4)}12(VO)30(H2O)20]36-: a molecular quantum spin.
Spin Susceptibility - an overview | ScienceDirect Topics.
Observation of Spin-Gap State in Two-Dimensional Spin-1 Kagomé.
Theoretical study of spherical kagomé clusters in Mo72 V30 and W72 V30.
Canonical-Ensemble Calculations of the Magnetic Susceptibility for a.
Theoretical study of spherical kagomé clusters in Mo 72.
Ground-State Energy and Spin Gap of Spin-1/2 Kagome Heisenberg.
Vanishing spin gap in a competing spin-liquid phase in the kagome.
Theoretical study of spherical kagom, clusters in Mo-72 V-30 and W-72 V-30.
Evidence of low-energy singlet excited states in the spin-1/2.

Theoretical study of spherical kagomé clusters in Mo 72V30 and.

The observed magnetic susceptibility χ is the sum of four components: (1) localized spin susceptibility χspin, (2) diamagnetic susceptibility due to the core electrons χcore, (3) Pauli paramagnetic susceptibility χP and (4) orbital diamagnetic susceptibility χ orb due to the cyclotron motion of the itinerant electrons. Abstract: For the spherical kagome system {W 72 V 30}, which is a magnetic cluster with 30 V 4+ ions, recent experimental and theoretical studies on the magnetization process at low temperatures have indicated that Dzyaloshinskii-Moriya interaction is an important ingredient in this material. In this paper, we use microcanonical thermal pure quantum (mTPQ) states to.

Theoretical study of quantum spin icosidodecahedron (S = 1=2) with next.

For the spherical kagome system {W72V30}, which is a magnetic cluster with 30 V4+ ions, recent experimental and theoretical studies on the magnetization process at low temperatures have indicated that Dzyaloshinskii-Moriya interaction is an important ingredient in this material. In this paper, we use microcanonical thermal pure quantum (mTPQ) states to calculate the temperature dependence of.

Figure 3 from Canonical-Ensemble Calculations of the Magnetic.

The high-temperature susceptibility was reproduced by the I h model with J = 245 K, but the low-temperature part was ∗ not.33) As the temperature decreases, the calculated suscep-tibility of the I h model vanishes much faster than the experi-mental susceptibility. In particular, the experimental spin gap.

Dimer-dimer Correlations and Magnetothermodynamics.

Abstract Numerical diagonalization methods are employed to study spin-1/2 spherical kagome clusters realized in W72V30 and Mo72V30, where the former is expected to have the ideal symmetry Ih and the latter is a little distorted. For the ideal model with Ih symmetry we calculate spin correlation functions in the ground state, which resemble the spin-1/2 kagome antiferomagnet closely. We also. From the D 2 Knight-shift measurements, we demonstrate that weakly interacting Cu 2 + spins at these defects cause the large Curie-Weiss enhancement toward T = 0 commonly observed in the bulk susceptibility data. We estimate the intrinsic spin susceptibility of the kagome planes by subtracting defect contributions, and explore several scenarios.

[{(Mo)Mo5O21(H2O)3(SO4)}12(VO)30(H2O)20]36-: a molecular quantum spin.

For the ideal quantum spin icosidodecahedron with next-nearest neighbor interactions, we find that there exist many singlet states before the first triplet state, which is an evidence of the resonating valence bond (RVB) state, and the experimental susceptibilities of Mo72V30 measured by Muller et al. and Botar et al. cannot be reproduced.

Spin Susceptibility - an overview | ScienceDirect Topics.

Fig. 3. Temperature dependence of magnetic susceptibility of spherical kagome system for D = 0. - "Canonical-Ensemble Calculations of the Magnetic Susceptibility for a Spin-1/2 Spherical Kagome Cluster With Dzyaloshinskii-Moriya Interactions by Using Microcanonical Thermal Pure Quantum States".

Observation of Spin-Gap State in Two-Dimensional Spin-1 Kagomé.

View 0 peer reviews of Evidence of low-energy singlet excited states in the spin-1/2 polyhedral clusters {Mo72V30} and {W72V30} with strongly frustrated kagome networks on Publons Big news! Your Publons™ profile is moving to the Web of Science™. From magnetic susceptibility and high-field magnetization measurements, it was found that the ground state is a disordered singlet with the spin gap, as predicted from a recent theory. Exact diagonalization for a 12-site Kagome cluster was performed to analyze the magnetic susceptibility, and individual exchange interactions were evaluated.

Theoretical study of spherical kagomé clusters in Mo72 V30 and W72 V30.

Now on home page. Spin-1/2 spherical kagomé clusters, or quantum-spin icosidodecahedrons, occurring in Mo_{72}V_{30} and W_{72}V_{30} are analyzed using the Lanczos method. Magnetic susceptibility analysis reveals that, whereas Mo_{72}V_{30} contains some degree of structural distortion that decreases its spin gap, the structure of W_{72}V_{30} can be described as a. Back the wing nut off at the end of the brake if the wheel spins freely. If it does, then turn the wing nut in until you begin to hear/feel it rub as you spin the tire. Then back the wing nut off 1-1/2 or to 2 much you back it off effects the play at the foot lever. Rear wheel does not spin freely when torqued all the way.

Canonical-Ensemble Calculations of the Magnetic Susceptibility for a.

We present a comprehensive list of ground state energies and spin gaps of finite kagome clusters with up to 42 spins obtained using large-scale exact... Skip to main content A line drawing of the Internet Archive headquarters building façade.... Ground-State Energy and Spin Gap of Spin-1/2 Kagome Heisenberg Antiferromagnetic Clusters: Large. Numerical diagonalization methods are employed to study spin-1/2 spherical kagome clusters realized in W 72 V 30 and Mo 72 V 30, where the former is expected to have the ideal symmetry I h and the latter is a little distorted. For the ideal model with I h symmetry we calculate spin correlation functions in the ground state, which resemble the spin-1/2 kagome.

Theoretical study of spherical kagomé clusters in Mo 72.

Vanishing spin gap in a competing spin-liquid phase in the kagome Heisenberg antiferromagnet. Download Citation | Theoretical study of spherical kagom, clusters in Mo-72 V-30 and W-72 V-30 | Spin-1/2 spherical kagomé clusters, or quantum-spin. 1. Introduction. Spin-|$1/2$| kagomé antiferromagnets have played a central role in the study of frustrated magnetism ever since Fazekas and Anderson first proposed a resonating valence bond (RVB) ground state in geometrically frustrated quantum-spin systems [].The kagomé lattice consists of a two-dimensional network of corner-sharing triangles, and it has.

Ground-State Energy and Spin Gap of Spin-1/2 Kagome Heisenberg.

Spin-1/2 spherical kagomé clusters, or quantum-spin icosidodecahedrons, occurring in Mo 72 V 30 and W 72 V 30 are analyzed using the Lanczos method. Magnetic susceptibility analysis reveals that, whereas Mo 72 V 30 contains some degree of structural distortion that decreases its spin gap, the structure of W 72 V 30 can be described as a regular (non-distorted). DOI: 10.1093/PTEP/PTU036 Corpus ID: 124590041. Theoretical study of spherical kagomé clusters in Mo72 V30 and W72 V30 @article{Kunisada2014TheoreticalSO, title={Theoretical study of spherical kagom{\'e} clusters in Mo72 V30 and W72 V30}, author={N. Kunisada and Y. Fukumoto}, journal={Progress of Theoretical and Experimental Physics}, year={2014}, volume={2014} }.

Vanishing spin gap in a competing spin-liquid phase in the kagome.

Motivated by recent experiments on the quantum-spin-liquid candidate material LiZn2Mo3O8, we study a single-band extended Hubbard model on an anisotropic Kagome lattice with the 1/6 electron filling. Due to the partial filling of the lattice, the inter-site repulsive interaction is necessary to generate Mott insulators, where electrons are localized in clusters,. It had been believed that Mo 72 V 30 could be described by the I h model, and a quantum Monte Carlo calculation of the magnetic susceptibility was performed in order to extract the exchange.

Theoretical study of spherical kagom, clusters in Mo-72 V-30 and W-72 V-30.

It had been believed that Mo 72 V 30 could be described by the I h model, and a quantum Monte Carlo calculation of the magnetic susceptibility was performed in order to extract the exchange. Low temperature properties of the organic spin-1 Kagomé antiferromagnet, m-MPYNN·BF<SUB>4</SUB>, have been studied by measuring heat capacity and magnetic susceptibility down to 35 mK. The heat capacity maximum due to a magnetic short-range order was observed at 1.4 K, which is about half of the antiferromagnetic interaction 2\\vert J\\vert/ k<SUB> B</SUB>=3.1 K in the Kagomé lattice. As. From magnetic susceptibility and high-field magnetization measurements, it was found that the ground state is a disordered singlet with the spin gap, as predicted from a recent theory. Exact diagonalization for a 12-site Kagomé cluster was performed to analyze the magnetic susceptibility, and individual exchange interactions were evaluated.