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Intra-block magnetic excitations in KFe0.8Ag1.2Te2
KFe0.8Ag1.2Te2 is made of 2x2 squares of Fe atoms, upon lowering temperature the system spontaneously undergoes a transition that breaks the fourfold rotational symmetry. A... -
Study of the Hollandite Bi1.7V8O16: a possible spin liquid candidate?
Bi1.7V8O16 is a member of the Hollandite family and its structure is base upon two sets of V4+ (S = 1/2) and V3+ (S = 1) chains. Bi1.7V8O16 undergoes a Metal-Insulator... -
The single ion crystal field ground state of Yb3+ in Yb2Ir2O7
The rare earth iridates, R2Ir2O7 have been intensely studied in recent years due to the unique behaviour of the magnetism on the iridium sites; a consequence of competition... -
Spin waves in lightly doped LiGa1-xInxCr4O8
Magnetic frustration - the inability to mutually satisfy all magnetic interactions in a system - is the source of many interesting phenomena, including spin liquids and ices. In... -
Magnetic fluctuations and ordering in two-dimensional and ferromagnetic Cr2Ge...
The proposal requests time to measure the magnetic fluctuations in a 2 dimensional ferromagnet where the dimensionality is set by weak van der Waals forces. We have previously... -
Inelastic neutron scattering study of exchange disorder in CaFe2O4 and CaFe1....
We would like to investigate polycrystalline CaFe2O4 which undergoes two magnetic transitions to a B phase below 190 K and to a A phase below 160 K. Both phases coexist in a... -
Understanding the ground state wavefunction in PrPtAl and YbNiSn
The proposal addreses the compounds PrPtAl and YbNiSn. Both systems are canted ferromagnets with both materials undergoing moment reorientation transitions as a function of... -
Spin excitations in LiFeAs, a stoichiometric ferropnictide superconductor at ...
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... -
Search for magnetic correlations in Fe phosphide superconductors
We propose to use inelastic neutron scattering to search for the existence of spin fluctuations in two iron phosphide superconductors, LaFePO and Sr2ScFePO3. The objective is to... -
The Evolution of the Antiferromagnetic Order with Hole Doping of La2-xSrxCoO4.
Many believe that the magnetic excitations of cuprate high temperature superconductors play an important role in the material's superconductivity. Understanding the magnetic... -
INS of Ln(trensal-thiphene)
We have synthesised the series of lanthanide complexes Ln(trensal-thiophene), where Ln = Er, Dy, Yb and H3trensal = 2,2,2-tris(salicylideneimino)trimethylamine. These... -
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... -
Molecular and framework dynamics in CH3NH3PbCl3
We propose to use MARI to measure the molecular and framework dynamics in CH3NH3PbCl3 which has become of interest in the context of efficient photovoltaics. CH3NH3PbCl3 is... -
Study of a spin gap and CEF excitations in the caged compounds CeT2Al10 (T=Fe...
This proposal was submitted on MERLIN (RB1010206) and beam time was allocated on MARI. We have carried out low energy measurements on MARI and found a clear evidence of the spin... -
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... -
Doping-induced energy gap in a quantum spin chain
SrCuO2 is a prototypical S = 1/2 antiferromagnetic (AF) Heisenberg 1D spin chain system. High-resolution neutron scattering studies has already successfully revealed the gapless... -
Inelastic magnetic excitations in NaFe0.95Co0.05As (Tc~17 K)
Though NaFeAs shares the same crystallographic structure with LiFeAs, there are many different aspects between them. We would like to compare the magnetic excitation in it with... -
Evolve of the Spin Waves in Rb0.8Fe1.6Se2 at High Temperature
The newly discovered AxFe2-ySe2 (A=K,Rb,Cs) compounds have attracted great interests because of their parent compounds are insulators instead of being metallic [2-6].... -
Spin waves in the single layer half doped manganite Pr0.5Ca1.5MnO4
We propose to measure the spin wave dispersion and intensities throughout the Brillouin zone of the single layer half-doped manganite Pr0.5Ca1.5MnO4, whose ground state has the... -
Topological magnons in Cu2OSeO3
Recently, it was predicted topological nature of the magnetic excitations of Cu2OSeO3. It turned out that the system belongs to the class of topologically non-trivial magnets...
