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Neutron diffraction study of some Mn-Ni-Ge based magnetic equiatomic alloys
Magnetic equiatomic alloys (MEAs) of the general formula MM'X (M, M' = transition metals, X = Si, Ge, Sn) undergo magnetostructural transition of martensitic type on cooling... -
Auger recombination in low temperature silicon measured by photo-MuSR technique
We measure electron-hole recombination rate in low-temperature pure silicon using the photo-MuSR technique. The previous works have measured the recombination rate down to -30... -
Chemical control of structures and magnetic ordering of cobalt oxide chalcoge...
The response of the magnetic ordering of layered cobalt oxide chalcogenides to changes in electron count will be investigated in detail following a preliminary experiment at... -
Phonon Dispersion in the Organic Ferroelectric Croconic Acid
Organic ferroelectrics are important materials because of their technological applications in low-cost non-volatile memory elements. Single-crystal croconic acid (C5O5H2) is the... -
Dynamics of Water on Surface of Reverse Osmotic Membranes
We are proposing 10 days of beamtime on IRIS to investigate the diffusion process of H2O molecules adsorbed on polyamide, surface material of reverse osmotic membranes currently... -
Ferroelectric transitions in potentially multiferroic Mn-formate frameworks
The perovskite-like family of ammonium formate frameworks AB(HCO2)3, where A is a divalent metal ion and B is an (alkyl)ammonium or guanadinium, is of great interest for its... -
Magnetic ordering in the frustrated honeycomb antiferromagnet Li2IrO3
This proposal is part of our research programme to explore novel ground states in frustrated quantum magnets. Strong spin-orbit coupling is predicted to stabilize composite... -
Incipient magnetic frustration in a metal organic-framework with windmill lat...
The aim of the proposed experiment is to use single-crystal neutron magnetic scattering experiments to study spin correlations in the correlated paramagnet regime of a chiral... -
Li(MeNH2)4: Poor Metal, Worse Metal, and Magnet
We request 2 days on GEM to determine the structure of crystalline Li(MeNH2)4: we will be preparing the fully deuterated analogue. Our investigations into the magnetic state of... -
Low-dimensional glasses: Effect of occupational site disorder in the excess o...
The present scientific case concerns a glass-forming system with even less degrees of freedom, namely the occupational disorder of high-temperature phase (I, P21/c) of... -
An abiotic analogue of methane monooxygenase for the catalytic oxidation of h...
We request 3 days Direct Access on TOSCA to complete the INS measurements of our previous experiment 1610254. We want to characterise the vibrational signatures of a new... -
One- and multi-magnon excitations in a strong-leg quantum spin ladder
We propose to measure the one- and multi-magnon excitations in the first realization of a S=1/2 quantum spin ladder in the strong-leg regime. Our material, DIMPY, has very well... -
Magnetic phase diagram of multiferroic GdMn2O5
In the last five years, we have carried out a comprehensive study of the family of REMn2O5 multiferroics by neutron and X-ray magnetic scattering, providing details about the... -
Neutron scattering study of a triangular-lattice NaYbO2: a quantum spin liqui...
The Quantum spin liquid (QSL) state continues to fascinate the condensed matter community. This is because the spins in a QSL are highly entangled and fluctuate strongly down to... -
Hydrogen disorder in benzoic acid
In a previous experiment on VESUVIO (RB 1520359) we aimed at investigating para-iodo-benzoic acid (IBA), in particular the onset in temperature for the appearance of the... -
Vibrational property analysis of NH4BH4 using inelastic neutron scattering
The proposed experiment at ISIS aims at the characterization of the vibrational properties of ammonium borohydride, NH4BH4, which possess the highest gravimetric H density (~25... -
Structural phase diagram of hydrated silks
The formation of silk fibres in both spiders and silkworms is characterized by a conversion of short range ordered structures in solution into long range ordered beta-sheet rich... -
Magnetic structure of layered oxide chalcogenides: Ba2CoO2Cu2Te2 and Sr2CoO3CuSe
This is an experiment to measure the crystal structures and the thermal evolution of the magnetic structures of two new layered oxide chalcogenides. In Ba2CoO2Cu2Te2 we will... -
Thermal expansion and ordering in D2O ice III / IX
The high-pressure form of solid water, ice III, is the equilibrium phase in contact with liquid water at pressures from about 2.0 - 3.5 kbar. Consequently, its properties are... -
Single-Crystal Neutron Diffraction Study on [U(C5Me5)2(H)(mu¿H)]2
To our knowledge, the length of the U¿H single bond has never been accurately measured, at least not in a molecular compound by single-crystal neutron diffraction. We currently...