Magnetism of Low Dimensional Quantum Spin Systems

Spin systems at low dimensions have been of great interest due to their novel, unconventional, and complex electronic and magnetic properties. In this regard, spin lattices, such as triangular, square, honeycomb, Kagome, and spin-trimer are of special significance with regard to their possible quantum properties. Neutron scattering technique, an excellent microscopic probe to investigate magnetic states, has been employed to reveal nature of magnetic ground states of a large variety of such spin systems with reduced space dimensions. I will emphasize the applications of the reverse Monte Carlo (RMC) simulation method of neutron diffraction data modelling and the Rietveld refinement for magnetic structure-analysis to quantify short-range as well as long-range magnetic correlations. The experimental results will be compared with the available theoretical results revealing the physics of such novel spin systems.