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From giant magneto-elastic coupling to negative thermal expansion
We recently used high-resolution neutron diffraction on HRPD to observe the largest magneto-elastic coupling ever seen in a metallic magnet. The material studied was CoMnSi, a... -
Thermal evolution of the structures of Ba2Cu1-xO2-yCu2Se2 phases
We will probe the structural changes as a function of temperature associated with oxide ion disorder/mobility in the end members of a redox-active oxide chalcogenide system. -
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... -
Coordinated, Recoiling Molecules Tethered by Hydrogen Bonding: Ammonia in Zeo...
We request 5 days on IRIS to investigate the hindrance to molecular rotation of ammonia in a zeolite framework due to hydrogen bonding interactions. This is a tied proposal to... -
PDF study of the structural disorder in a quantum spin liquid candidate
We have identified a potential quantum spin liquid by tuning the magnetic interactions on a square lattice through d10-d0 cation mixing. MuSR shows dynamic magnetism down to... -
Superconductivity induced changes in the ferromangetic order of Y(1-x)PrxBa2C...
By polarized neutron reflectometry we want to investigate the magnetic field profile in Y(1-x)PrxBa2Cu3O7/La(2/3)Ca(1/3)MnO3 high-Tc superconductor/ferromagnet superlattices. In... -
Origin of giant ferroelectricity in perovskite-type Mn2O3
Perovskite-type compounds can be both very simple and tremendously complex. Remarkably, even binary perovskite-type compounds may exhibit high level of complexity that leads to... -
Investigation of the low temperature phases of SrSnO3
The present proposal is to examine the low temperature structural properties of SrSnO3 using the HRPD. This work aims to examine the structural basis for the unusual low... -
Magnetism and first order phase transition of Ni42Co8Mn38Sb12: Neutron diffra...
Heusler alloys have gained important place in condensed matter physics due to their versatile functional properties such as large magnetoresistance, giant magnetocaloric effect,... -
H/D isotope effect on enamtiomers: the case of Alanine
In the current description of any molecular system based on the Schrodinger equation with a Hamiltonian accounting only for the electromagnetic forces, the structural properties... -
Determination of the Low Temperature Crystal Structure of Cobalt Adipate
This experiment will use high resolution neutron diffraction to investigate the crystal and magnetic structure of the cobalt adipate framework, Co(CO2(CH2)4CO2), at lower... -
Structure, thermal expansion and vibrational properties of ammonium bicarbona...
Ammonium carbonates, sensu lato, have relevance to carbon capture schemes and as potential hydrogen storage materials. These compounds occur on Earth as minerals and, since... -
Spin excitations in La2O2Fe2OSe2 ¿ A Mott insulator candidate
We propose to map out the spin excitations in La2O2FeOSe2 using the MARI chopper spectrometer on a powder sample. Although the structure of La2O2FeOSe2 has some similarities to... -
Phase Separation in NaTaO3. Can it be controlled by pressure?
The present proposal seeks to establish the pressure dependence of the Pbnm-Cmcm transition in NaTaO3 and some doped variants thereof. It aims to understand the understand the... -
Investigations of amorphous pharmaceutical materials produced from different ...
Pharmaceuticals are usually formulated in the crystalline state for obvious reasons of stability. They may also exist in a disordered and less cohesive state i.e. amorphous... -
Structural phase diagram of rare earth substituted multiferroic BiFeO3
BiFeO3 is one of the most widely studied multiferroics (ferroelectric TC ~ 830°C, and antiferromagnetic TN ~ 370°C). Rare earth doping has been shown to be a suitable method of... -
Programme Access Rosseinsky
This dataset has no description
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QENS studies of molecular hydrogen in K-doped electrospun graphite nanofibres
The physisorptive capability of graphite-based nanomaterials for hydrogen is strongly dependent on their surface areas and nanomorphologies. We have made electrospun graphite... -
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... -
High Pressure Driven Spin States in LaCoO3
This proposal is concerned with determining variations in the high pressure structure of LaCoO3 and observing changes within this as the material undergoes some well...
