59 datasets found

There has been much research into the recently discovered iron based superconductors, but so far only the magnetic excitations at low energy have been investigated. We propose...

Graphene is the single layer of honeycomb-shaped carbon network, for which 2010 Nobel Prize in Physics was awarded thanks to its novel electronic properties. One of such...

LiFeAs is one of the newly discovered FeAs superconductors with still large T_c of 18K. First inelastic neutron scattering experiments on powder and on single-crystalline...

The proposal aims to further investigate the transition from commensurate magnetic order to incommensurate magnetic and charge stripe order in the family of compounds,...

We find unusual antiferromagnetic order in Cu heavily overdoped BaFeCuAs2 with the order wave vector at (0.5 0.5 1). This anitiferromagnetic signal cannot come from the parent...

As a member of the large hexagonal ferrite families, M-type barium ferrite BaFe12O19 has been largely investigated by the researchers owing to its rich properties. Recently, a...

In our recent experiments on MERLIN we have established that the spin excitations in Fe(Se,Te) emanating from incommensurate positions near (0.5 0.5 0) extends at least to 250...

Our previous studies of the hole-doped antiferromagnet La1.75Sr0.25CoO4 have shown the distinctive "Hour-Glass" dispersion attributed to magnetic and charge ordered stripes....

The concept of an electronic nematic, in which the electronic wavefunctions have different symmetry to the crystal structure, has been proposed to explain several unusual...

We will use MAPS to measure the complete spin excitation spectrum of the quasi-two-dimensional S=3/2 antiferromagnet La2CoO4. The measurement is motivated by recent observations...

Our recent inelastic neutron scattering (INS) study using MARI clearly reveals the presence of a sharp inelastic excitation near 8 meV and 11 meV in CeT2Al10 (T=Ru and Os)...

It has been argued that the tetragonal-to-orthorhombic structural transition found in all the parent phases of the Fe-pnictide superconductors is driven by frustration, and...

Spin liquid is a novel phenomena that can arise due to magnetic frustration. Magnetic frustration occurs if the competing interactions cannot be mutually satisfied, giving rise...

We propose inelastic neutron scattering (INS) experiment on single crystal of the prototype topological insulator (TI), Bi2Se3, at MAPS to measure q-dependent joint-DOS, based...

Of all multiferroic materials, BiFeO3 stands out particularly with its both magnetic and ferroelectric transition temperatures above room temperatures, and more interestingly...

NaxCoO2 has exceptional thermoelectric properties, including low thermal conductivity, and it is currently under consideration for use in power recovery applications and as a...

The colossal magnetoresistance effect in manganites arises from a competition between delocalisation, which favours a ferromagnetic metallic phase, and localisation of electons...

We propose to study the magnetic excitation spectrum of Na2IrO3 with inelastic neutron scattering. Na2IrO3 is a promising candidate to realize Kitaev interaction. By mapping out...

The interplay between magnetism and superconductivity in iron-based high-temperature superconductors are of great interest in condensed matter physics research. These two...

Recently, our neutron scattering experiments on electron doped BaFe2-xNixAs2 and hole doped Ba1-xKxFe2As2 suggest that the presence of both high-energy spin excitations giving...