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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... -
Transverse field evolution of magnetic excitation spectrum in Nb1-yFe2+y
Our previous neutron scattering on C14 Laves phase compounds Nb1-yFe2+y revealed that a spin-density-wave (SDW) is masking an underlying ferromagnetic (FM) quantum critical... -
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... -
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... -
Neutron diffraction with a single crystal diamond
This dataset has no description
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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... -
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... -
The short hydrogen bond in organic crystal structures revisited: (T,p) phase ...
Very short hydrogen bonds (with O···O separations <2.5Å), in which the position and behaviour of the protons are often ambiguous, have been the subject of many studies by... -
Magnetic order in the frustrated magnet Cu5(VO4)2O2CsCl
We propose to use WISH to characterise magnetic order of a new quantum (S=1/2) geometrically frustrated material based on the mineral averievite, Cu_5(VO_4)_2O_2CsCl. This... -
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... -
Magnetic excitation in O2 supercrystal realized in nanoporous compound
We propose to perform neutron scattering experiment in a new field of science, magnetic O2 molecule supercrystal realized in nanoporous compound. In our previous work on... -
Magnetic Excitations in an Organic-Inorganic Hybrid Kagome Lattice Antiferrom...
The material Cu(1,3-benzenedicarboxylate) (C8H4CuO4) features structurally perfect kagome lattice planes of spin-1/2 copper2+ ions, with the separated by organic linkers. High... -
Vibrational density of states in ammonium hexachlorometallates.
The piloting VESUVIO experiments RB820478, RB610497 on (NH4)2PdCl6 and (NH4)2TeCl6 and RB 10067 on (ND4)2PdCl6 have shown that: (i) the H/D dynamics in NH4+/ND4+ is largely... -
Atomic structure of formamidinium lead iodide perovskite
New perovskite phases containing lead and halogens with a molecular cation are providing new options for materials in solar cells, giving unusually high efficiencies in... -
Inelastic Neutron Scattering study on Co-doped CeCu2Ge2
The AFM ground state of CeCu2Ge2 can be continuously suppressed by Co doping and NFL type behavior is seen around the critical concentration xc = 0.6. The electrical resistivity... -
Optimising the Haupt effect: the route toward application
The implementation of quick temperature cycles over the temperature range 2-40K in g-picoline has lead to the first observation of a redistribution of scattered intensity in... -
Structural Disorder in the Quantum Spin Liquid Candidate YbMgGaO4
Quantum spin liquids are novel magnetic states in which quantum entanglement suppresses conventional magnetic order. Understanding the effects that stabilise such states is an...
