29 datasets found

Magnetism is believed to be linked to superconductivity in cuprates and iron pnictides. However while the parent compounds of cuprates are Mott insulators, the parent compounds...

The exchange-striction mechanism, where parallel or antiparallel alignment of an ion's spin with its neighbour leads to displacements away from or towards the neighbour which...

We have investigated spin excitations in Lu2V2O7 on MERLIN in this cycle and it would be interesting to investigate how the spin excitations change when one have magnetic ion in...

At low temperatures FeSi is a non-magnetic insulator, but becomes a metallic paramagnet for T > 300K. It has been proposed to be a Kondo insulator in which local electron...

Recent observation of AFM transition at 1.3 K in Sr2YIrO6 with Ir in 5+ valence state has motivated research interests in the double perovskite Sr2TIrO6. Usually Ir5+ with a...

We propose to measure the powder-averaged spin excitation spectrum of LiFeAs, a new member of the ferropnictide family of superconductors. This compound is special because it is...

Topological materials get extensive attention in last three decades. HgCr2Se4 is one of those materials being a Weyl semimetal which is induced by time-reversal symmetry...

Strong orbital mixing resulting from local distortions in the crystal field can mix higher energy orbital states with the ground state. We propose to characterise this mixing in...

AB2O4 is one of the most investigated systems due to the interaction between electron, spin, orbital, and lattice, which lead to the anormal physical properties:a) the orbital...