Understanding the electron pairing in hole-doped cuprate superconductors has been a
challenge, in particular because the “normal” state from which it evolves is unprecedented …

An overview of one-and two-dimensional quantum spin systems based on transition-metal
oxides and halides of current interest is given, such as spin-Peierls, spin-dimer …

Stripe phases are predicted and observed to occur in a class of strongly correlated materials
describable as doped antiferromagnets, of which the copper-oxide superconductors are the …

The electronic properties of crystals can be manipulated by superimposing spatially periodic
electric, magnetic or structural modulations. Long-wavelength modulations incommensurate …

The stripe order in La 2− x Sr x NiO 4+ δ with 0.289≲ x≲ 0.5 was studied with neutron-
scattering technique. At low temperatures, all samples exhibit hole stripe order …

Motivated by the recent discovery of superconductivity in infinite-layer nickelate thin films, we
report on a synthesis and magnetization study on bulk samples of the parent compounds …

The quasi-2D nickelate La4Ni3O8 (La-438), consisting of trilayer networks of square planar
Ni ions, is a member of the so-called T′ family, which is derived from the Ruddlesden …

In two dimensions, quenched disorder always rounds transitions involving the breaking of
spatial symmetries so, in practice, it can often be difficult to infer what form the symmetry …

Abstract 63 Cu and 139 La nuclear quadrupole resonance and Zeeman perturbed nuclear
magnetic resonance experiments are performed on the striped phase of the high …

One of the major themes in correlated electron physics over the last quarter century has
been the problem of high-temperature superconductivity in hole-doped copper-oxide …