Spin Gap And Susceptibility Of Spherical Kagome Cluster Mo72V30

NMR study of the magnetic properties of NaV{sub 6}O{sub 11}: spin-gap.
Theoretical study of spherical kagom, clusters in Mo-72 V-30.
Dimer-dimer Correlations and.
Evidence of low-energy singlet excited states in the spin-1/2.
Should my rear wheel spin freely.
Spin Gap And Susceptibility Of Spherical Kagome Cluster Mo72V30.
Spin excitations in metallic kagome lattice FeSn and CoSn.
Researchers | FUKUMOTO YOSHIYUKI (00318213) - KAKEN.
研究者をさがす | 福元好志 (00318213) - Kaken.
Singlet Ground State and Spin Gap in S=1/2 Kagome.
Tensors on the Magnetization Process of a Spherical Kagome.
Gapless spin liquid behavior in a kagome Heisenberg.
EOF.

NMR study of the magnetic properties of NaV{sub 6}O{sub 11}: spin-gap.

An icon used to represent a menu that can be toggled by interacting with this icon. Nov 11, 2021 · To compare the paramagnetic scattering in CoSn and spin waves in FeSn, we first determine the energy scales of the phonon scattering. The blue and red data points in Fig. 4c and d show energy. 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 calculate the.

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

Abstract 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 antiferomagnet closely.

Dimer-dimer Correlations and.

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.

Evidence of low-energy singlet excited states in the spin-1/2.

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. On the other hand, magnetization lower than the spin-gap field depends on θ, which is natural because the DM interaction determines the value of zero-temperature susceptibility. Comparing $\theta= 0.5\pi$ and $1.5\pi$, the latter has a weaker cusp around the spin-gap field and seems to reproduce the experimental result better.

Should my rear wheel spin freely.

The magnetic susceptibility for the ideal spherical kagome cluster, eq. (1) with Ji,j = J,by using the quantum Monte-Carlomethod. (In this case, the model has I. 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.

Spin Gap And Susceptibility Of Spherical Kagome Cluster Mo72V30.

Spin-1/2 spherical kagomé clusters, or quantum-spin icosidodecahedrons, occurring in Mo72V30 and W72V30 are analyzed using the Lanczos method.... Magnetic susceptibility analysis reveals that, whereas Mo72V30 contains some degree of structural distortion that decreases its spin gap, the structure of W72V30 can be described as a regular (non.

Spin excitations in metallic kagome lattice FeSn and CoSn.

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. Mambrini and Mila studied the low-lying energy spectrum for the S= 1/2 Kagom´e lattice by the variational technique, and obtained that the number of singlet states in the spin gap is αN for N-site. May 06, 2009 · Its magnetic ground state was found to be a spin singlet with a triplet gap. Using exact diagonalization for a 12-site kagome cluster, we analyzed the magnetic susceptibility and evaluated individual exchange interactions. The causes leading to the different ground states in Cs 2 Cu 3 SnF 12 and Rb 2 Cu 3 SnF 12 are discussed.

Researchers | FUKUMOTO YOSHIYUKI (00318213) - KAKEN.

Mar 03, 2008 · 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. 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} }.

研究者をさがす | 福元好志 (00318213) - Kaken.

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.

Singlet Ground State and Spin Gap in S=1/2 Kagome.

Dec 02, 2016 · Quantum spin liquids form a novel class of matter where, despite the existence of strong exchange interactions, spins do not order down to the lowest measured temperature. Typically, these occur in lattices that act to frustrate the appearance of magnetism. In two dimensions, the classic example is the kagome lattice composed of corner sharing triangles. There are a variety of minerals whose. 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) icosidodecahedron. [学会発表] 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 2018.

Tensors on the Magnetization Process of a Spherical Kagome.

. Dynamic Scaling in the Susceptibility of the Spin-1\2 Kagome Lattice Antiferromagnet Herbertsmithite Item Preview remove-circle Share or Embed This Item. Share to Twitter. Share to Facebook. Share to Reddit. 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 |$_... In this work, we focus on the spin-1/2 spherical kagomé cluster (or quantum-spin icosidodecahedron), which consists of 30 vertices, 20 corner-sharing triangles.

Gapless spin liquid behavior in a kagome Heisenberg.

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-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). 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.

EOF.

To clarify why the experimental magnetization curve of the spherical kagome cluster in {W72V30} at 0.5 K shows no sign of staircase behavior up to 50 T, we study the effects of Dzyaloshinskii–Moriy. Spin Susceptibility and Gap Structure of the Fractional-Statistics Gas Item Preview. We report an approach of exploring the interaction between cationic surfactants and a type of structurally well-defined, spherical "Keplerate" polyoxometalate (POM) macroanionic molecular clusters, {Mo72V30}, in aqueous solution. The effectiveness of the interaction can be determined by monitoring the size change of the "blackberry.