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Encapsulation in Mixed Cat-anionic Surfactant Polymer Films
This proposal continues our investigations into polyelectrolyte-surfactant films at the air-solution interface. Using mixtures of cationic and anionic surfactants (CTAB/SDS) we... -
Phase Diagram of Ba1-xKxFe2As2
In the new class of iron pnictide superconductors, there is evidence of phase coexistence close to the phase boundary between the SDW and superconducting order produced by hole... -
Phase behaviour of methane clathrate under conditions relevant to Titan's int...
Methane clathrates are likely to be an important constituent of icy satellite interiors and a source of methane in the atmosphere of Saturn's giant satellite Titan. There is... -
Cooperative Jahn-Teller distortions in Ru4+ double perovskites
The aim of the proposed experiment is to use HRPD to follow the temperature dependence of the crystal structures of the double perovskites La2MgRuO6 and La2CoRuO6. This is of... -
Zr-based metal-organic frameworks as carbon-free energy carriers: a study of ...
Structural information of Zr-based MOFs including UiO-67, m-UiO-67, and UiO-bpydc upon ammonia loading will be investigated by an in situ neutron powder diffraction technique.... -
Structural Studies of PbZr1-xTixO3: completing the puzzle in the tetragonal a...
We request 6 days of HRPD time in order to study the structures on the tetragonal side of the lead zirconate-titanate (PZT) phase diagram, a region that has so far been rather... -
Time Resolved Studies on Inorganic Film Formation at the Air-Solution Interface
In a recent SURF experiment on the formation of silica films templated with cat-anionic/polymer complexes we found that the film growth and evolution occurs on a faster time... -
Crystal structures and magnetic order in metal/ammonia intercalates of FeSe
This is a proposal to determine the magnetic structures of the Rb/NH3 and K/NH3 intercalates of FeSe. These compounds exhibit superconductivity when freshly prepared, but... -
Incorporation of PAN-pyrene swollen micelles in crosslinked polyelectrolyte f...
We have been studying the formation of solid polymer-surfactant films at the air-solution interface formed from cationic surfactants with PEI. We wish to use the micelles... -
Effect of Aging Temperature on Inorganic Films Templated by Polymer-Surfactan...
Recently we have been investigating the mineralization of polymer-surfactant films to create thicker and more robust self-supporting membranes. Our previous experiments used the... -
Phase Separation and Jahn Teller Distortion in Molybdate Perovskites
Two days of beamtime on HRPD will be used to examine a family of double perovskites Sr2YbMO6 that are isostructural at room temperature. When M = Mo5+ the monoclinic perovskite... -
Density-driven structural transformations in calcium silicate glass
The density-driven structural transformations in the calcium silicate glass CaSiO3 will be investigated at pressures increasing to 17.5 GPa. This glass is one of a family of... -
Strain effect on the magnetic ground state of the ferroelectric Ca3CoMnO6 system
The search for new ferroelectric materials, where the ferroelectricity results from magnetic frustration, has been a topic of great interest to the condensed matter physics... -
CaTiO3 cooling from 291 K 30-130 ms jaws 15*20
This dataset has no description
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The hydration and ordering of lamellar block copolymer films prior to the for...
The key to the use of polymer vesicles as effective molecular delivery systems is in the ability to efficiently encapsulate a molecular payload within the vesicle. We would like... -
Competing degenrate magnetic states in Ba1-xNaxFe2As2
Magnetic and superconducting ground states have been proposed to coexist in a relatively narrow compositional range in the so-called 122 pnictide superconductors. We recently... -
Completing the Magnetic Ordering-Crystal Structure Phase Diagram of Supercond...
The key objective is to measure three samples of composition Fe(1.05)Te, Fe(1.12)Te, and Fe(1.14)Te as a function of temperature (base to 80 K) through their magnetic ordering... -
Mesostructured titania films from ethanolic solutions
In this proposal we wish to continue our current work on mesostructured inorganic films in largely ethanolic solutions, containing limited amounts of water. Transition metal... -
Spin ordering in the iridium oxide pyrochlore A2Ir2O7
Here we propose to search for magnetic order in 3 variants of the A2Ir2O7 (A=Y, Nd, and Lu) system. A fundamentally new, moderately-coupled, electronic ground state has been... -
Structure and magnetic properties of Sr4Fe6O12
Despite many previous attempts, Sr4Fe6O12 (the expected fully reduced composition for Sr4Fe6O13-x) has not been synthesised. It is of interest because it is believed to contain...
