475 datasets found

SQUID magnetometry is the first and most trivial step when studying magnetic systems. However reliable conclusions can only be made in cases of very simple systems. When the...

Ordered double perovskites (also known as elpasolites) have the general formula A2BB’O6 where A is generally a rare earth metal or alkaline earth metal and where B and B’ are...

Y-Ni based compounds are quite interesting materials as far as their magnetic ground states are concerned. As a function of Y concentration, the compounds show both weak...

We use inorganic nanoparticles grafted with polymers as membranes for gas separation. These membranes show remarkable enhancement in permeability as compared to the bulk...

Transition metal pyrovanadate M2V2O7 (M = Ni, Co, Mn) exist with a great variety of crystal structures, which are reflected in the richness of their physical properties....

Human hair has been studied by x-ray diffraction and electron microscopy for many years, however a complete picture of its structure is still missing. Hair is a weakly...

Polycyclic aromatic hydrocarbons (PAHs), a wide class of organic molecules with multiply fused aromatic rings, are ubiquitous in the interstellar medium. In the condensed phase...

SrCuTe2O6 is a quantum magnet featuring spin-1/2 magnetic ions that are coupled intoantiferromagnetic chains with frustrated interchain coupling. An ideal...

We propose to measure the spin fluctuations in Na0.44MnO2 using the MARI chopper spectrometer. Na0.44MnO2 is derived from alpha-NaMnO2 and is a tunnelled structure. Preliminary...

We propose to use a pulsed magnet system tried and tested at several neutron and synchrotron facilities in conjunction with the new high flux diffractometer WISH to perform the...

Materials with helical and double helical structure motifs are prone to display fascinating spring-type behaviour, i.e. a shallow energy surface along the spring-axis in which...

We propose to use OSIRIS to investigate the changes in magnetic ordering which occur when a series of layered oxysulfides with mixed-valent Mn ions in their oxide layers are...

The quasi-kagome Kondo lattice CeRhSn exhibits intriguing properties, which ascribe to quantum criticality induced by geometrical frustration. Divergent Grüneisen ratios provide...

This proposal follows from a short previous test experiment (RB 920345) aimed at understanding the nature of local structure distortions in YBa2Cu3O6.9 and their possible role...

With the discovery of almost 3000 exo-planets it is clear that planet formation is a by-product of star formation, yet in the micron – cm size range, where relative velocities...

Solar cells based on a layer of halide perovskite have recently seen rapid increases in efficiency, with certified values in excess of 20%. The prototypical material of this...

This proposal is to explore the evolution of magnetic ordering in two members of the homologous series CaFe2O4(FeO)n with n = 1, & 3, and to correlation the behaviour of the...

The perovskite structure with general formula ABX3 describes many hundreds (if not thousands) of materials. Many have interesting and technologically important properties. The...

The proposed 1111 system whose structures are largely underinvestigated exhibits properties with a strong potential for novel properties that complement our knowledge of the...

Porous functional metal-organic framework (MOF) materials show great potential for high capacity gas storage and separation. We seek to develop new materials for carbon capture...