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Search for magnetic fluctuations and a spin resonance in FeSe intercalated wi...
Very recently, bulk superconductivity has been found at Tc = 43 K in the layered compound FeSe intercalated with Li ions and amide and ammonia molecular groups. We propose to... -
Unveiling molecular and collective magnetism in the coupled trimer spin syste...
When isolated spin clusters are weakly coupled to each other, zero-dimensional quantum and three-dimensional collective magnetism concomitantly occur. This is envisioned in the... -
Determination of the on-top vibrational mode of the surface hydride in PdH.
Finely divided supported palladium particles are used as catalysts in many technical processes. Using MAPS we have recently investigated the interaction of hydrogen with the... -
Spin gap and possible spin-dimer formation in Ce(Os1-xFex)2Al10 (X=0 to 1)
Our neutron study using MARI/MERLIN on Ce(Ru1-xFex) 2Al10 reveals very interesting magnetic excitations and a manuscript is ready to submit to PRB. In x=0 (TN=27 K) a... -
Magnetic fluctuations in an FeSe superconductor (Tc = 40K) intercalated with ...
Superconductors have many practical applications, especially in technologies that require high magnetic fields, such as magnetic resonance imaging (MRI). Efforts to find new and... -
Single crystal study of spin gap formation in CeT2Al10 (T=Ru and Os)
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)... -
Inelastic Neutron Scattering Study to Understand Magnetism of Ca3Cu1-xMn1+xO6...
This dataset has no description
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High-energy magnetic excitations in FeSe
FeSe (Tc = 9 K) being structurally the simplest iron based superconductor shows some exotic properties. For instance, it only undergoes a tetragonal-to-orthorhombic structural... -
The partial vibrational density of states for As2Se3 glass
The method of Se isotope substitution with inelastic neutron scattering will be used to measure the partial VDOS for As2Se3 glass. This is a prototypical network forming... -
Magnetic excitations in mesoporous hematite
We have recently prepared mesoporous forms of various metals oxides. In some cases the imposition of a mesostructure changes other properties of the material significantly. One... -
Vibrational Dynamics of Alkali Silicate Glasses - An Isotopic Mass Contrast S...
The present proposal is part of a larger EPSRC project advancing the vibrational spectroscopy of silicate glasses. The project involves the techniques of IR and Raman... -
Magnetic interactions in honeycomb iridates Na2IrO3
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... -
Spin gap opening associated with an extraordinary magnetovolume effect in som...
We have discovered an unusual magnetovolume effect in the 6H-perovskite oxides Ba3BiIr2O9 and Ba3BiRu2O9. These compounds contain isolated face-sharing bi-octahedral dimers... -
Phonon density of states in W, Mo, Nb-doped CaMnO3 thermoelectric ceramics
Thermoelectric materials are able to directly convert a difference of temperature into electricity and vice-versa. Hence, they can be employed either in energy harvesting from... -
High Energy Spin Excitations in Electron Overdoped NaFe0.7Ni0.3As
The interplay between magnetism and superconductivity in iron-based high-temperature superconductors are of great interest in condensed matter physics research. These two... -
Spin excitations in RbFe2F6 ¿ A possible S=5/2 Kagome lattice?
We propose to investigate the spin fluctuations in a candidate S=5/2 Kagome lattice. Previous neutron diffraction has found that RbFe2F6 maybe a good realization of a Kagome... -
Explore the spectrum of spin excitations in non-superconducting BaFe1.8Ni0.1C...
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... -
Incommensurate magnetic fluctuation in KFe2As2 at high energy
We clearly observed incommensurate (IC) magnetic excitation in KFe2As2 above Tc with Ei=80 mev on ARCS at ORNL. Though we got beam time at LET, we wish to see how the IC changes... -
Q dependence of the low energy magnetic fluctuations in Intermediate Valence ...
A strong Q-dependence of the magnetic response at characteristic energy of EK~kBTK (TK is a Kondo temperature) has been observed in recent inelastic neutron scattering studies... -
High Energy Spin Excitations in Overdoped Superconducting BaFe1.85Ni0.15As2
The recent discovered iron pnictide superconductor which shows a transition temperature up to 50K has drawn much attention in the community. There are indications that...
