Ground-state magnetic properties of spin ladder-shaped quantum nanomagnet: Exact diagonalization study
arXiv:1709.09156 · doi:10.1016/j.jmmm.2017.12.076
Abstract
The paper presents a computational study of the ground-state properties of a quantum nanomagnet possessing the shape of a finite two-legged ladder composed of 12 spins . The system is described with isotropic quantum Heisenberg model with nearest-neighbour interleg and intraleg interactions supplemented with diagonal interleg coupling between next nearest neighbours. All the couplings can take arbitrary values. The description of the ground state is based on the exact numerical diagonalization of the Hamiltonian. The ground-state phase diagram is constructed and analysed as a function of the interactions and the external magnetic field. The ground-state energy and spin-spin correlations are extensively discussed. The cases of ferro- and antiferromagnetic couplings are compared and contrasted.
References in corpus (30)
- Quantum Computing in Molecular Magnets
- Quantum computing with spin cluster qubits
- Magnetic Cluster Excitations
- One-Dimensional Magnetism
- Quantum computing with antiferromagnetic spin clusters
- Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders
- Control of single-spin magnetic anisotropy by exchange coupling
- Magnetization plateaux and jumps in a class of frustrated ladders: A simple route to a complex behaviour
- Single-molecule Nanomagnets
- The Antiferromagnetic Heisenberg Model on Clusters with Icosahedral Symmetry
- Generalized algebraic transformations and exactly solvable classical-quantum models
- Probing Magnetic Excitations and Correlations in Single and Coupled Spin Systems with Scanning Tunneling Spectroscopy
- Giant magnetocaloric effect, magnetization plateaux and jumps of the regular Ising polyhedra
- Non-locally sensing the magnetic states of nanoscale antiferromagnets with an atomic spin sensor
- Enhanced magnetocaloric effect in a proximity of magnetization steps and jumps of spin-1/2 XXZ Heisenberg regular polyhedra
- Parity effect in ground state localization of antiferromagnetic chains coupled to a ferromagnet
- The Antiferromagnetic Heisenberg Model on Fullerene-Type Symmetry Clusters
- The Schottky-type specific heat as an indicator of relative degeneracy between ground and first-excited states: the case study of regular Ising polyhedra
- The emergence of classical behavior in magnetic adatoms
- Thermodynamic and magnetocaloric properties of geometrically frustrated Ising nanoclusters
- Antiferromagnetic Heisenberg Model on the Icosahedron: Influence of Connectivity and the Transition from the Classical to the Quantum Limit
- Quantum Theory of Molecular Magnetism
- Magnetization process and magnetocaloric effect in geometrically frustrated Ising antiferromagnet and spin ice models on a `Star of David' nanocluster
- Magnetization process and magnetocaloric effect of the spin-1/2 XXZ Heisenberg cuboctahedron
- Entropy of spin clusters with frustrated geometry
- Design of Magnetic Textures of Ad-Nanocorrals with an Extra Adatom
- Isothermal Entropy Change and Adiabatic Change of Temperature of the Antiferromagnetic Spin-1/2 Ising Octahedron and Dodecahedron
- Exact diagonalization studies of doped Heisenberg spin rings
- Quantum decoration transformation for spin models
- Ground-state magnetic properties of spin ladder-shaped quantum nanomagnet: Exact diagonalization study