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Alpha-CaCr2O4: magnetic study of a new case of triangulaire Cr-lattice
We propose to study a layered oxide in which chromium cations describe a triangular array. Itseems us that no magnetic data are reported up to now for this alpha-CaCr2O4... -
Negative thermal expansion in the rutile phase of ZnF2
It has recently been discovered than the rutile phase of zinc fluoride shows negative thermal expansion along all three crystallographic axes. What is highly unusual about this... -
Proton dynamics in novel organic ferroelectric materials
The vast majority of known ferroelectrics are inorganic compounds such as barium titanate and potassium dihydrogen phosphate. Contrary to naïve expectation, ferroelectricity in... -
Probing the magnetic structure of transition metal pyrovanadate Fe2V2O7
We have synthesized and characterized a new member, namely Fe2V2O7 in the family of 3d transition metal pyrovanadate M2V2O7 (M =Mn, Fe, Co, Ni, Cu). M2V2O7 exist with a great... -
Inelastic neutron scattering study on the Spin-Lattice interaction in the Spi...
AB2O4 is one of the most investigated systems due to the interaction between electron, spin, orbital, and lattice, which lead to the anormal physical properties:a) the orbital... -
Single-crystal neutron diffraction study of sucrose at high pressure.
In the context of expanding the sample environments available for experiments on the SXD instrument, the Paris-Edinburgh press recently developed on PEARL offers the possibility... -
Investigation of crystal and magnetic structures of three polymorphs of Fe2WO...
Iron tungstate Fe2WO6 attracts increasing interest in two areas of applications due to its photoelectrochemical behaviour. Fe2WO6 can act either as a photocatalyst for... -
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... -
Evaluation of a low temperature solid-solid phase transition of 4?-hydroxyace...
This dataset has no description
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Anomalous spin diffusion in 2D percolating magnet
This proposal is to observe single-spin diffusive motion on a two-dimensional (2D) percolating network having a fractal geometry. The random walker¿s travel times on a... -
Molecular dynamics and melting in CH3NH3PbCl3:
The organic-inorganic perovskites (CH3NH3Pb(Br,Cl,I)3) have been identified as efficient photovoltaic materials. Theoretical calculations have suggested that the low energy... -
Tilting transition and dimensionality crossover of anion chain order in Ba1-x...
Transition metal oxynitride perovskites are an emerging class of functional materials. However, their oxide/nitride ordering principles were unclear until a recent study of the... -
High-Energy Solitary Magnons in CaFe2O4:
We have recently discovered solitary magnons in the classical magnet CaFe2O4 below 3 meV. in this experiment we propose to extend this to higher energy transfers to track how... -
CuH: a (nearly) 200 year old problem
Copper (I) hydride, CuH, is unique amongst the binary metal hydrides in that it can be synthesised, at room temperature, in aqueous solution. In recent years CuH generated in... -
Exotic phase coexistence in magnetic and superconducting LaFe(As1-xPx)(O1-yFy)
The proposed 1111 system whose structures are largely underinvestigated exhibits properties with a strong potential for novel properties that complement our knowledge of the... -
Order-disorder and phase transitions in the LiFeO2 cathode materials
Despite the importance of the LiFeO2 phases as cathode materials in lithium ion batteries, little is known about their crystal structures, except that they should be based on... -
Magnetic excitations in FeCrAs
We propose to carry out inelastic neutron scattering experiments to study magnetic excitation spectrum in FeCrAs. FeCrAs exhibits magnetic ordering around 125 K, which is... -
Morphology-activity relationships in catalysis promoted by MoOx nanoparticles
Metal and metal oxide nanostructures can be prepared in much different morphology (nanowires, nanobelts, nanofibres etc.) which are known to exhibit better adjustable properties... -
Multiferroic (Ferroelastic/Magnetic) Phase Transitions in KMnF3
KMnF3 perovskite undergoes 3 structural, and two magnetic phase transitions on cooling from 300 K to 2 K. Above 185 K the compound is in the aristotype structure, on cooling... -
Aza-crown-stabilized Alkali-Alkalide Systems: Solvent and metal effects on di...
We request 4 days on IRIS to investigate the diffusional and rotational dynamics of the alkalide forming, fully methylated aza-crown hexamethyl-hexacyclen (HMHC) in...
