-
Structure and cation ordering in A2Sn3Q7-type phases (A=In, Cr; Q= S, Se)
We wish to exploit the contrast afforded by neutrons to study the ordering of In and Sn cations in indium tin chalcogenides. Cation ordering has been inferred from spectroscopic... -
Magnetic structure of the new chiral magnetoelectric Sb2MnO6
Magnetoelectric multiferroics have been recently the focus of a significant research effort. The experiment that we propose explores a new class of "magnetochiral" systems,... -
Entangled superconductivity and magnetic and charge density waves in A1-xA'xF...
We aim to study select samples of hole and electron doped (A,A')(Fe,B)2As2 (A=Ba, Sr, or Ca; A'=Na, K and B=Co, Ni, or Pt) iron pnictides. These materials exhibit robust... -
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... -
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... -
Neutron diffraction and µSR investigation on YbPd
YbPd crystallizes in the cubic CsCl-type structure and reported to have magnetically ordered ground state with the mixed valence of the Yb ion. Further, it under goes through... -
In-situ hydrogen decomposition studies of ammonia borane and the diammoniate ...
Ammonia borane (AB) is one of the most promising hydrogen storage materials. We have extensively studied the low temperature behaviour of this material This proposal asks for 3... -
Quantum Criticality in YFe2Al10
Quantum phase transitions, where correlation length and time scales diverge, are of broad interest to the condensed matter physics community. The new layered material YFe2Al10... -
Looking for potential diffuse scattering in a large crystal of green dioptase
This dataset has no description
-
magnetic structure and step-like magnetization in Ca3Co2O6: a neutron diffrac...
Pure Ca3Co2O6 is a model system of ferromagnetic Ising chains arranged antiferromagnetically on a triangular net. Furthermore this system has aroused great interest because at... -
Measuring magnetic excitations in K(NbO)Cu4(PO4)4
I am working on a low dimensional quantum magnet family. A member of it, KNb, is a good experimental realisation of the squarelattice. It appears that this compound has a... -
Critical and quantum critical spins fluctuations in URhGe
Ferromagnetism in URhGe is continuously suppressed with a magnetic field leading to a Quantum Critical Point (QCP) at around 12 T engulfed by a pocket of superconductivity. The... -
Low-Temperature Structural Phase Transitions in GeV4S8
The defect thiospinel, GeV4S8 adopts a cubic structure at room temperature (space group F-43m). We have identified a new monoclinic phase of this material at 2K, which may be... -
Effect of Temperature on Coordination of Small Rotor-Molecules Within Micropo...
We request five days on TOSCA to study the partial phonon density of states of ammonia absorbed within two zeolitic materials. This work is a continuation of our previous INS... -
Structural Studies of BiFeO3-KNbO3 Solid Solution
Both BiFeO3 and KNbO3 are technologically important materials. BiFeO3 exhibs room temperature magnetic and ferroelectric ordering whilst KNbO3 is a lead free ferroelectric.... -
Partially disordered antiferromagnet phase of CsCoX3 (X=Cl, Br)
Systems of the CsCoX3 family form antiferromagnetic chains along the c-axis, and are arranged in a frustrated triangular arrangement in the ab-plane. Below 30K, both systems... -
The Structure of the High-Energy ¿Paramagnon¿ Excitations in La2-xSrxCuO4
A major problem in physics is the identification of the mechanism of high-temperature superconductivity. Many theories purport to explain the high-Tc phenomenon. In most... -
Hydrogen dynamics in clay nanotubes
We will study H2 dynamics in the nanotubular clay imogolite whose structure has an external diameter of ~2.5 nm and an inner diameter of <1 nm. The tube length of synthetic... -
Spin-Lattice coupling in Frustrated Triangular Lattice Antiferromagnet AFeO2 ...
Back up experiment to fill gap in the schedule if beamtime is available -
Uniaxial pressure induced spin-density wave order in CeAuSb2
We propose to apply uniaxial strain to induce a spin-density wave (SDW) modulation in CeAuSb2. Neutron diffraction measurements show this system has a tendency to order along...
