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Exploring magnetic fluctuations in a novel iridate pyrochlore: Bi2Ir2O7
Pyrochlore magnets are one of the cornerstones of frustrated magnetism, with two interpenetrating lattices of corner-sharing tetrahedra on which magnetic ions can be placed. By... -
Search for spin freezing and magnetic order in a frustrated cluster magnet
LiZn2Mo3O8 is a highly unusual geometrically frustrated material: the magnetic moments are associated not with single ions but with small transition-metal clusters. The spin is... -
Nanostructure in Ionic Liquid mixtures
In recent SANDALS experiments, we showed that simple ionic liquids (ILs) ethylammonium nitrate (EAN) and ethanolammonium nitrate (EtAN) are structurally hetereogeneous, with... -
Critical behaviour and FmuF oscillations in Cs2Cu3SnF12 and Rb2Cu3SnF12
Cs2Cu3SnF12 and Rb2Cu3SnF12 have a distorted kagome structure and the latter exhibits a pinwheel valence bond solid (VBS) state that has been demonstrated by inelastic neutron... -
A Time-Resolved SANS Study of the Gelation Mechanisms of Tetrapeptide Hydroge...
Time-resolved SANS will be used to investigate the mechanisms and kinetics of ordering of aseries of novel designed tetrapeptide-based hydrogelators. These inexpensive materials... -
Field-induced Tomonaga-Luttinger Liquid phase in a spin ladder
The new molecular magnet bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY) is a strong-leg spin ladder with a quantum critical point at 3 T separating a low-field... -
Na4Ir3O8: a spin liquid, a valence bond crystal, or something else?
Spins on the kagome lattice are one of the most widely investigated topics in frustrated magnetism. This two-dimensional corner sharing triangular lattice offers a... -
Studying the limits of the quantum Griffiths phase in Ni,V
A randomly diluted ferromagnet has its transition temperature Tc suppressed to a quantum critical point. Between the Tc of the diluted material and that of the undiluted... -
Spin fluctuations in the hyperkagome quantum antiferromagnet Na4Ir3O8
Spins arranged on the kagome lattice are one of the most widely investigated topics in frustrated magnetism. In this context, the three-dimensional analogue of these systems,... -
Separating static and dynamic contributions to the muon relaxation in Ca3(Co,...
Ca3CoMnO6 has alternating ions in ferromagnetic Ising chains that are antiferromagnetically coupled on a triangular lattice and realizes an important model in frustrated... -
Understanding Amphiphilic Self-Assembly in and by Protic Ionic Liquids
The goal of this project is to understand the intermolecular forces that promote amphiphile self assembly in ethylammonium nitrate (EAN), a room temperature ionic liquid (IL).... -
Structure of Adsorbed Surfactant Layers at the Ethanoalammonium Nitrate¿Air I...
We have recently completed x-ray reflectivity, neutron reflectivity [RB810041], and sum frequency spectroscopy experiments using non-ionic surfactants adsorbed at the... -
Field-induced Tomonaga-Luttinger Liquid phase in a spin ladder
The new molecular magnet bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY) is a strong-leg spin ladder with a quantum critical point at 3.0(3) T separating a low-field... -
Magnetic excitations in SrEr2O4
In SrEr2O4 the magnetic Er ions are linked through a network of triangles and hexagons, where geometrical frustration can arise, provided that some exchange interactions are... -
Field induced spin Luttinger liquid phase in a spin ladder
Spin ladders present a class of low-dimensional quantum magnets that occupy a regime of rather subtle behavior which lies between the stark extremes of a one-dimensional chain... -
Magnetic excitations in Strontium Erbium Oxide
In SrEr2O4 the magnetic Er ions are linked through a network of triangles and hexagons, where geometrical frustration can arise, provided that some exchange interactions are... -
Studying the metamagnetism of FeCl2 and FeBr2 using HiFi
Work on the iron halides FeX2 has led to the models of A-type antiferromagnetism and the tricritical point in magnetic systems. Here we wish to carry out decoupling experiments... -
Salts Dissolved in Salts: Ionic Liquid + inorganic salt mixtures
Ionic liquids (ILs) are low melting point organic salts that until recently were thought to have homogeneous microstructure. In recent SANDALS research,1 we showed pure ILs are... -
Neutron Diffraction study of Highly Frustrated SrEr2O4
We propose to measure the neutron diffraction pattern of a single crystal sample of SrEr2O4, using the WISH diffractometer. As the magnetic Er ions in this compound are linked... -
Searching for magnetic ordering in the S=1/2 quasi-one-dimensional chain magn...
Muon spin relaxation is a remarkably powerful tool for discovering magnetic order in quasi-one-dimensional magnetic chain compounds, particularly when the weak interchain...