We present an up-to-date survey of theoretical concepts and results in the field of one-
dimensional magnetism and of their relevance to experiments and real materials. Main …

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 …

One of the simplest quantum many-body systems is the spin-1/2 Heisenberg
antiferromagnetic chain, a linear array of interacting magnetic moments. Its exact ground …

The Horace suite of programs has been developed to work with large multiple-measurement
data sets collected from time-of-flight neutron spectrometers equipped with arrays of position …

We succeeded in experimentally demonstrating that a series of two-dimensional maps of a
dynamical structure factor in momentum–energy space with multiple incident energies can …

Magnetic excitations in an array of (VO) 2 P 2 O 7 single crystals have been measured using
inelastic neutron scattering. Until now,(VO) 2 P 2 O 7 has been thought of as a two-leg …

Measurements are reported of the magnetic field dependence of excitations in the quantum
critical state of the spin S= 1/2 linear chain Heisenberg antiferromagnet copper pyrazine …

We present numerical and analytical results for the thermodynamical properties of the spin-
1/2 Heisenberg chain at arbitrary external magnetic field. Special emphasis is placed on …

The antiferromagnetic (AF) compound BaCu 2 Si 2 O 7 is studied by magnetic susceptibility
and neutron-scattering techniques. The observed behavior is dominated by the presence of …

Inelastic neutron scattering measurements show the existence of a strong two-spinon
continuum in the frustrated ferromagnetic spin-1/2 chain compound LiCuVO 4. The dynamic …