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Can INS measurements access hydrocarbonaceous overlayers on heterogeneous hyd...
This application seeks to discover whether the catalyst handling protocols refined for INS measurements of a variety of heterogeneous catalytic systems can be further exploited... -
High-energy excitations in a spin orbital liquid on the diamond lattice
This proposal is part of our research programme on spin and orbital order in frustrated systems. The spinel FeSc2S4 realises an exotic ¿spin-orbital liquid¿ with no magnetic or... -
Probing the mechanism of thermoelectric enhancement in Kondo insulator YbB12 ...
We propose to study the evolution of the spectral features in the dynamical magnetic response in series Yb_{1-x}Tm_{x}B_{12} (x=0.15, 0.6, 0.8). Tm doping results in non-trivial... -
Spin wave investigation in brownmillerite oxygen deficient perovskite Ca2Fe2O5
The Dzyaloshinskii-Moriya interaction is thought to be responsible for the stabilization of weak ferromagnetism or magnetic spiral states in a number of diverse systems. An... -
The Neutron Scattering Spin Resonance: A probe of the momentum structure of t...
We propose to use MERLIN to examine the full magnetic excitation spectrum Chi¿(q,w) of optimally doped Fe based superconductor BaFe1.84Co0.16As2. The primary goal of this... -
Investigation of the new spin-ladder compound MgCu2O3
Here we propose to investigate the excitation spectrum of the new spin-ladder compound MgCu2O3. Unlike typical spin-ladders this compound has a rung coupling that is much weaker... -
Magnetic excitations from optimally doped BSCCO in the pseudogap phase
We plan to study the temperature dependence of magnetic excitations in the optimally doped high-Tc superconductor Bi$2$Sr$_2$CaCu$_2$O${8+\delta}$ (BSCCO). We have previously... -
Relaxation dynamics of a Dy-based single molecule magnet
Single-molecule magnets (SMM) exhibiting slow magnetic relaxation have attracted increasing interest, both from a fundamental point of view, and for the potential practical... -
Probing the crystal field of dysprosium (III) single-ion magnets with enhance...
SMMs have received much attention owing to their quantum tunneling and slow relaxation of the magnetization. This has led to an intense activity by synthetic chemists to... -
CEF scheme investigation of selected CenTmIn3n+2m (T=Rh, Pt) compounds
Due to the tunable interplay between magnetism and superconductivity the CenTmIn3n+2m (n, m = 1, 2; T = Co, Ir, Rh, Pd, Pt) family of heavy fermion compounds has been attractive... -
Magnetic excitations in spin ladders
We wish to measure the magnetic excitations and subgap states in a doped (x=0.06) spin ladder using MERLIN. The purpose of the measurements is to ascertain the relationship... -
Phonon measurements of the incommensurate phase transition in Åkermanite
The proposal is to measure the inelastic scattering from a single crystal of Åkermanite on cooling towards and through the incommensurate phase transition at 358 K. There are... -
Resonant Spin Excitation in Single Crystal of Ba0.3K0.7Fe2As2
We recently observed a resonant spin excitation in Ba1-xKxFe2As2 (x=0.4), one of the newly discovered iron arsenide superconductors with Tc=38K, on MERLIN. This demonstrates... -
The study of spin excitations in superconducting LiFeAs
The spin excitations in superconducting LiFeAs have been found evolved from incommensurate peaks to commensurate peak at low energy. But the spin resonance is still not clear in... -
Excitations in an orbitally dimerized spin S=1 honeycomb antiferromagnet
Ru4+ ions in Li2RuO3 are on a bipartite lattice and have an orbital degeneracy. The four electrons of the magnetic Ru4+ ions in the threefold-orbitally degenerate t2g manifold... -
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... -
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... -
Magnetic and Quadrupolar Excitations in UPd3
UPd3 exhibits four antiferroquadrupolar (AFQ) ordered phases below T0=7.6K. We have determined their order parameters using resonant x-ray diffraction. UPd3 has the dhcp crystal... -
Magnetic Excitations of Cobalt Oxide
Cobalt Oxide has the face centered cubic structure above the antiferromagnetic transition of 300 K. The magnetic moments are composed of both spin and orbital contributions.... -
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...