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High energy spin excitation in superconducting Rb0.8Fe1.68Se2
Superconductivity (SC) in unconventional superconductors is believed to be related to magnetism. However, in AyFe1.6+xSe2 (A = K, Rb, Cs) system discovered in late 2010, the SC... -
Single Crystal Investigations of Polymorphism and Disorder in CH3NH3PbI3
Photovoltaics are one of the most promising technologies for meeting future energy requirements. CH3NH3PbI3 was first used in a solar cell in 2009, which gave an efficiency of... -
Magnetic Structure and Martensite Twin-Laws of ferromagnetic Co2-Ni-Ga and Fe...
Pseudoelastic, ferromagnetic Co2NiGa type high-temperature shape memory alloys (HT-SMAs) are characterized by a wide range of tunable transformation temperatures and lower... -
Single-crystal analysis of disorder in deuterated and protonated mirabilite
Mirabilite (Na2SO4.10H2O) is relevant to many areas of geology, planetary science, and even the construction industry. It occurs naturally in evaporite deposits, and even as... -
The charge-ordered superstructure of YbFe2O4
There has been much recent interest in the so-called ¿novel¿ or ¿type-II¿ multiferroics, in which electrical polarisation appears at the onset of a particular type of magnetic... -
Crystal chemistry of Ca2B6O6(OH)10•2H2O
This dataset has no description
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Do defect structures in the pyrochlore Tb2Ti2O7 control hidden order or the t...
The rare earth pyrochlores have been at the forefront of research into exotic magnetic phenomena for some years. In general they are of interest because they are frustrated -... -
Thermochromism in N-salicylideneanilines
N-salicylidineanilines are known to show thermochromic behaviour, which is currently postulated to arise from an intramolecular proton shift between the keto and enol form as... -
Atomic resolution holographic study of polycrystalline yttrium hydride
It is commonly accepted that the recording of holograms with atomic resolution requires singlecrystalline samples. Closer analysis, however, shows that the reduced information... -
Neutron Diffraction Studies on YbCu4Ga8
We discovered a new compound YbCu4Ga8 and the available laboratory single crystal data shows that it crystallizes in the tetragonal system. The asymmetric unit contains one Yb... -
Defects and spin correlations in yttrium-doped spin ice
Excitations in spin ice fractionalize into de-confined magnetic monopoles that interact with each other via the magnetic Coulomb interaction. Substituting rare earth ions with... -
Determination of the Crystallographic and Magnetic structures of RbMnBr3, RbF...
We propose to study the crystal structures of RbMnBr3, RbFeBr3 and RbNiBr3 between 300 and 0.3 K. RbMnBr3 under goes two structural phase transition by reducing Rb coordination.... -
Defect structure of oxygen-deficient Yb2Zr2O6.5
Ytterbium zirconate is of fundamental interest as a model frustrated magnet, and of potential technological importance as a thermal barrier material. In both cases oxygen... -
Single-Crystal Neutron Diffraction Study on [U(C5Me5)2(H)(mu¿H)]2
To our knowledge, the length of the U¿H single bond has never been accurately measured, at least not in a molecular compound by single-crystal neutron diffraction. We currently... -
Single-crystal neutron diffraction studies of chain-ordered brownmillerite su...
We are performing structural investigations of a series of brownmillerites (Sr,Ca)2(Fe,Co)2O5 which display long-range modulated ordering of oxygen vacancies at ambient and high... -
Detailed structural investigations of defective fluorite single crystals
This dataset has no description
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Oxygen-deficient quantum spin ice
In quantum analogues of the spin ice materials quantum mechanical tunneling between ground states is expected, and exotic emergent behaviour has been predicted including a Higgs... -
Characterisation of diffuse scattering in β-Ti GUM metal
The goal of this proposal is to measure the diffuse scattering in Beta-Ti Gum Metal. We have measured the phonon dispersion curves and have found several soft-phonon anomalies... -
Structural Studies of 9-methyltriptycenes
We aim at obtaining reliable structural information for selected compounds from a series of four 9-methyltripticene derivatives. These compounds form in the solid state... -
A combination study of the antiferromagnetism and diffusive magnetic scatteri...
As far as we know there is no single crystal neutron study on ErPr_2Si_2 yet, mainly due to fabrication difficulties. We have grown large (diameter: 6 mm; length: 8 mm) single...