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Magnetic excitations in square lattice 2D Heisenberg Antiferromagnet Sr3Fe2O6.5
Strontium iron oxides belonging to the RP series Srn+1FenO3n+1 (n = 1, 2, ..,1) may offer unique insights into the differences between the magnetic properties of the... -
Inelastic magnetic scattering in CePd3
CePd3 is a classic intermediate valence (IV) system. In MAPS experiment 620167 we obtained an important qualitative result for CePd3, namely that the Kondo-like scattering... -
MAPS commissioning
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Study of vibron stability in CeCuxAl4-x, 0.7x1.1 through inel...
Considering interesting physical properties observed in CeCuxAl4-x our aim is to investigate the stability of vibron excitations, already observed in CeCuAl3, as a function of... -
Ligand-field characterization and U-Pt bonding in uranium-based heterometalli...
We propose to investigate the magnetic excitation spectra of tetravalent uranium ions in two isostructural, one-dimesional chains made up by aligned UM2 units, with M = Pt and... -
The partial dynamical structure factors and vibrational density of states in ...
We wish to measure the partial dynamical structure factors and the partial vibrational density of states (VDOS) for the archetypal network forming glass GeSe2 by using the... -
Phonon confinement effects in Si-nanowires
Nanowires can be used for devices based on thermoelectrics and to convert the heat into electrical current. The material design challenge here is to create the materials where... -
Determination of the crystal-electric field in geometrically frustrated pyroc...
Geometrically frustrated systems such as pyrochlore compounds receive much attention since they display exotic magnetic states. The explanation lies on the large degeneracy of... -
Low Energy Dispersion of a Stripe-Ordered, Hole-Doped Antiferromagnet
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.... -
High Energy Magnetic Excitations in Fe(Se,Te)
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... -
Kond scale of CeRh1-xIrxIn5 with x= 0, 0.25, 0.3, 0.5, 0.8 and 1
The non conventional d-wave superconductivity in Heavy Fermion compounds seems to be triggered by spin fluctuations, which is in strong contrast to conventional... -
The partial dynamical structure factors and vibrational density of states in ...
The object of this proposal is to measure the partial dynamical structure factors and the partial vibrational density of states (VDOS) for the archetypal network forming glass... -
Quantum spin dynamics in molecular based triangular antiferromagnet Li2AMo3O8...
Recently new molecular based magnets Li2AMo3O8 (A = In and Sc), where Mo3O8 clusters form S = 1/2 triangular lattice Heisenberg antiferromagnet, were synthesized.... -
Test of FERNS CCR at low temperatures on MERLIN
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Inelastic Neutron Scattering Study of Resonant Spin Excitation in the Single ...
The recent discovery of the iron arsenide family of layered superconductors RFeAsO1-xFx and AFe2As2 with transition temperature up to 52K has generated tremendous interest as... -
Soft Modes in the Ferroelectric Semiconductor SbSI
Antimony sulfo-iodide (SbSI) exhibits strongly-coupled photoconductive, semiconducting, and ferroelectric properties. Until the discovery of the lead-oxide ferroelectric relaxor... -
Spin excitations in the superconducting FeTe0.6Se0.4
The FeTe1-xSex series exhibits superconductivity over a broad range of doping. Previously we have made extensive neutron scattering measurements on superconducting x = 0.49 and... -
Magnetic Excitations in Chromium
Chromium is unique amongst the d-band elemental metals in that it has a spin density wave ground state. The spin density wave is caused by Fermi surface nesting between electron... -
Doping Dependence of the Resonant Spin Excitation in Ba1-xKxFe2As2
We recently observed a resonant spin excitation in Ba0.6K0.4Fe2As2, one of the newly discovered iron arsenide superconductors with Tc=38K, on MERLIN. This demonstrates that the... -
Temperature dependence of phonon modes in protonated (H2O) and deuterated (D2...
Recentely we have measured (RB 1620263) pressure dependence of phonon modes in both the protonated (H2O) and deuterated ice (D2O) (Fig. 2) at ambient, 0.3 kbar, 1.0 kbar and 1.6...
