Effect of an uniaxial single-ion anisotropy on the quantum and thermal entanglement of a mixed spin-(1/2, S) Heisenberg dimer
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2021.168799
Abstract: Exact analytical diagonalization is used to study the bipartite entanglement of the antiferromagnetic mixed spin(1/2,S ) Heisenberg dimer (MSHD) with the help of negativity. Under the assumption of uniaxial single-ion anisotropy affecting higher spin-S (S… read more here.
Keywords: thermal entanglement; spin; single ion; ion anisotropy ... See more keywords
Random transverse single-ion anisotropy in the spin−1 Blume–Capel quantum model
Sign Up to like & getrecommendations! Published in 2019 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2019.01.123
Abstract: Abstract We have studied the effects of the random transverse single-ion anisotropy in the phase diagram and in the thermodynamic properties of the spin − 1 Blume–Capel quantum model, which has been used the approach… read more here.
Keywords: spin blume; transverse single; random transverse; ion anisotropy ... See more keywords
Quantum phase transitions in a spin-1 antiferromagnetic chain with long-range interactions and modulated single-ion anisotropy
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.024425
Abstract: We study the phase diagram of spin-1 antiferromagnetic chain with isotropic antiferromagnetic interactions decaying with a power-law $\propto r^{-\alpha}$ ($\alpha\ge 1$) accompanied by modulated single-ion anisotropy. Employing the techniques of the density-matrix renormalization group, effects… read more here.
Keywords: range interactions; long range; phase transitions; ion anisotropy ... See more keywords
Frustration Measure for Molecular Magnets with Single-Ion Anisotropy
Sign Up to like & getrecommendations! Published in 2018 at "Acta Physica Polonica A"
DOI: 10.12693/aphyspola.133.423
Abstract: The universal frustration measure and its extension to anisotropic systems is calculated for a family of spin Hamiltonians modeling a hypothetical ring-shaped chromium-based molecular magnets. The proposed extension takes into account the impact of single-ion… read more here.
Keywords: frustration measure; single ion; ion anisotropy;