نتایج جستجو برای: xz spin 12 chain model
تعداد نتایج: 2928733 فیلتر نتایج به سال:
In this paper, we extend our previous work in investigating the performance of XZ-shape histogram for recognizing human performing activities of daily living (ADLs) which focuses on human-object interaction activities based on Kinect-like depth image. The feasibility of XZ-shape histogram as well as general 3D shape descriptors namely; 1) shape distribution, 2) shape histogram, 3) global spin i...
We study the temperature dependence of energy diffusion in two chaotic gapped quantum spin chains, a tilted-field Ising model and an XZ model, using open-system approach. introduce imbalance by coupling chain to thermal baths at its boundary nonequilibrium steady states resulting Lindblad dynamics matrix product operator ansatz for density matrix. define effective local profile comparing reduce...
The present study has been carried out to understand the effect of electronic correlations on recently found fermions in CoSi. For which spectral functions bulk and (001) surface CoSi have investigated using DFT + DMFT advanced methodology at T = 100 K with without inclusion spin–orbit coupling (SOC). Co $${d_{xz}}$$ $${d_{yz}}$$ $$d_{z^2}$$ bands seem contribute threefold degenerate $$\Gamma $...
Perpendicular magnetic anisotropy of the new ferromagnetic semiconductor (Ba,K)(Zn,Mn)$_{2}$As$_{2}$ is studied by angle-dependent x-ray circular dichroism measurements. The large with field 0.85 T deduced fitting Stoner-Wohlfarth model to magnetic-field-angle dependence projected moment. Transverse XMCD spectra highlights anisotropic distribution Mn 3$d$ electrons, where $d_{xz}$ and $d_{yz}$ ...
We introduce a one-dimensional (1D) XZ model with alternating σ i σ z i+1 and σ x i σ x i+1 interactions on even/odd bonds, interpolating between the Ising model and the quantum compass model. We present two ways of its exact solution by: (i) mapping to the quantum Ising models, and (ii) using fermions with spin 1/2. In certain cases the nearest neighbor pseudospin correlations change discontin...
We use neutron scattering to study spin excitations in single crystals of LiFe_{0.88}Co_{0.12}As, which is located near the boundary of the superconducting phase of LiFe_{1-x}Co_{x}As and exhibits non-Fermi-liquid behavior indicative of a quantum critical point. By comparing spin excitations of LiFe_{0.88}Co_{0.12}As with a combined density functional theory and dynamical mean field theory calc...
We study the effect of anisotropy spin-$S$ impurities on an antiferromagnetic SU(2) Heisenberg chain. The magnetic are assumed to have XXZ-type anisotropic exchange with their neighboring sites. First, using density-matrix renormalization group technique, we examine spin-spin correlation function, instability N\'eel order, and local spin susceptibility in presence a single impurity. Based resul...
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