Exact and density matrix renormalization group studies of two mixed spin- branched-chain models developed for a heterotrimetallic Fe-Mn-Cu coordination …
The mixed-spin Ising-Heisenberg and Heisenberg branched chains whose magnetic
backbone consists of regularly alternating spins 1/2 and 5/2, the latter of which are …
backbone consists of regularly alternating spins 1/2 and 5/2, the latter of which are …
Kosterlitz-Thouless and Gaussian criticalities in a mixed spin-() Heisenberg branched chain with exchange anisotropy
Density-matrix renormalization group calculations are used to determine the ground-state
phase diagram of the mixed spin-(1/2, 5/2, 1/2) Heisenberg chain whose backbone consists …
phase diagram of the mixed spin-(1/2, 5/2, 1/2) Heisenberg chain whose backbone consists …
Universality of the topological phase transition in mixed-spin tetramer Heisenberg chains
The ground-state features of a mixed-spin Heisenberg bond-alternating chain with unit cell
consisting of spin-1/2 and general spin-S dimers are investigated using density matrix …
consisting of spin-1/2 and general spin-S dimers are investigated using density matrix …
Phase transitions and magnetization of the mixed-spin Ising–Heisenberg double sawtooth frustrated ladder
Abstract The mixed spin-(1, 1/2) Ising–Heisenberg double sawtooth ladder containing a
mixture of both spin-1 and spin-1/2 nodal atoms, and the spin-1/2 interstitial dimers are …
mixture of both spin-1 and spin-1/2 nodal atoms, and the spin-1/2 interstitial dimers are …
Diversity of quantum ground states and quantum phase transitions of a spin- Heisenberg octahedral chain
The spin-1 2 Heisenberg octahedral chain with regularly alternating monomeric and square-
plaquette sites is investigated using various analytical and numerical methods: variational …
plaquette sites is investigated using various analytical and numerical methods: variational …
Frustrated magnetism of spin- Heisenberg diamond and octahedral chains as a statistical mechanical monomer-dimer problem
It is evidenced that effective lattice-gas models of hard-core monomers and dimers afford a
proper description of low-temperature features of spin-1 2 Heisenberg diamond and …
proper description of low-temperature features of spin-1 2 Heisenberg diamond and …
[HTML][HTML] Quantum correlations and quantum phase transitions in mixed spin-(1/2, 1) Heisenberg chain with single-ion anisotropy
We study the quantum phase transitions occurring in the ferrimagnetic mixed spin-(1/2, 1)
chain with single-ion anisotropy under the influence of an external magnetic field. Using …
chain with single-ion anisotropy under the influence of an external magnetic field. Using …
[HTML][HTML] Macroscopic ground-state degeneracy and magnetocaloric effect in the exactly solvable spin-1/2 Ising–Heisenberg double-tetrahedral chain
L Gálisová, D Knežo - Physics Letters A, 2018 - Elsevier
The ground-state degeneracy and magnetocaloric effect in the spin-1/2 Ising–Heisenberg
double-tetrahedral chain are exactly investigated. It is demonstrated that the zero …
double-tetrahedral chain are exactly investigated. It is demonstrated that the zero …
Role of density-dependent magnon hop** and magnon-magnon repulsion in ferrimagnetic spin-(1/2, ) chains in a magnetic field
We compare the ground-state features of alternating ferrimagnetic chains (1/2, S) with S= 1,
3/2, 2, 5/2 in a magnetic field and the corresponding Holstein-Primakoff bosonic models up …
3/2, 2, 5/2 in a magnetic field and the corresponding Holstein-Primakoff bosonic models up …
Magnetic-field–temperature phase diagram of alternating ferrimagnetic chains: Spin-wave theory from a fully polarized vacuum
Quantum critical (QC) phenomena can be accessed by studying quantum magnets under an
applied magnetic field (B). The QC points are located at the end points of magnetization …
applied magnetic field (B). The QC points are located at the end points of magnetization …