The discovery of magnetism by the ancient Greeks was enabled by the natural occurrence of
lodestone–a magnetized version of the mineral magnetite. Nowadays, natural minerals …

We investigate the quantum spin-1/2 zigzag chain with frustrated J 1-J 2 Heisenberg
interactions, incorporating additional off-diagonal exchange interactions known as the Γ …

Oligo (indenoindenes)(OInIn) are π-conjugated ladder carbon polymers with alternating
hexagons and pentagons, hosting one unpaired electron for each of the latter in the open …

We investigate the ground-state properties of a correlated model for the double-chain
structure in cuprates. We consider the t–J model, in which the nearest-neighbor spin …

We study an asymmetric J 1-J 2 zigzag ladder consisting of two different spin-1 2
antiferromagnetic (AFM; J 2, γ J 2> 0) Heisenberg legs coupled by zigzag-shaped …

We report inelastic neutron scattering experiments in Ca 2 Y 2 Cu 5 O 10 and map out the
full one-magnon dispersion which extends up to a record value of 53 meV for frustrated …

Ground-state phase diagram and universality of sequential topological valence-bond-solid
quantum transitions in a mixed tetramer chain - IOPscience Skip to content IOP Science home …

Exact diagonalization of small model systems gives the thermodynamics of spin chains or
quantum cell models at high temperatures T. Density matrix renormalization group …

The ferrimagnetic phase of the sawtooth chain with mixed ferromagnetic nearest-neighbour
interactions $ J $ and antiferromagnetic next-nearest-neighbour interactions $ J'$(within the …

The spin-1/2 Heisenberg chain with a ferromagnetic first-neighbor exchange coupling J 1
and an antiferromagnetic second-neighbor J 2 has a Haldane dimer ground state with an …