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Clarifying the magnetism of two polymorphs of Ca2Os2O7 by muon spin rotation
This proposal is part of our project to investigate the unusual physics of 5d transition metal oxides. In particular, we are studying two samples of the chemical composition... -
Frustration-stabilised high-field skyrmions
Magnetic skyrmions are nanometric topological vortex-like spin textures that appear in select materials and have lately attracted a lot of attention due to their numerous... -
Is Ba2PrMoO6 a valence bond glass? A MuSR spectroscopic study
It has recently been proposed that Ba2YMoO6 is the first example of an exotic valence bond glass (VBG), which is characterized by an amorphous arrangement of spin dimers and... -
Magnetism and superconductivity in hyperexpanded fullerides close to the Mott...
The fcc polymorph of the hyperexpanded fulleride Cs3C60 can be driven to a bulk suprconducting state without symmetry change by the application of pressure. Its Tc passes... -
Anisotropic Li+ diffusion in the cathode material LiFePO4
LiFePO4 is cathode material for Li ion batteries. One of the key functional properties is the Li-ion diffusion. Theoretical calculations showed that Li diffusion along the [010]... -
Probing the glass transition in polymers using LF muSR
Nearly all polymers form glasses and the glass transition at temperature Tg dominates many physical properties of polymers that are relevant for their applications. The most... -
LF and RF muSR Studies of Polymer Dynamics in Polydimethylsiloxane
Muon spin relaxation will be used to study the dynamical properties of the polymer polydimethylsiloxane. This has emerged as an excellent model system for the study of polymer... -
Lithium-Methylamine: using muons to finally tell us what is going on with the...
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An ALC study of the organic ferroelectrics TTF-CA and TTF-BA (continuation)
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Is there magnetic order in intrinsically frustrated rare earth bilayer alumin...
Compounds with formula R2SrAl2O7 (R=rare earth) look superficially similar to the well-known bilayer manganites, but here the perovskite bilayers contain Al and are nonmagnetic.... -
muSR study of magnetic correlations and their transformation in nanoclusters ...
Only few studies have explored the magnetic correlations in nanocomposites of Cobalt carbide systems. Our magnetization and transport studies on nanocomposites of admixed phases... -
muSR studies of expanded fullerides across the superconductivity dome
FCC Cs3C60 can be driven to a bulk superconducting state without symmetry change by the application of pressure. Its Tc passes through a maximum of 35 K at 6 kbar. We have been... -
Non-equilibrium effects in the skyrmion material Co8Zn8Mn4
Skyrmions are topologically protected, vortex-like nano-sized objects which have been shown to exist in the spin textures of a range of magnetic materials. As we have recently... -
Probing the interplay between charge density wave and superconductivity in st...
We propose to study PdxIrTe2, which evolves from a charge-orbital density wave state to a superconducting state with doping. It has a similar structural motif, doping-dependent... -
Spin Frustration in Iridate Systems, and the Role of the Spin-Orbit Coupling
We propose to investigate the roles of the spin-orbit interaction and geometrical frustration in stabilising a quantum spin liquid phase (QSL) in some iridate systems. µSR is a... -
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... -
Spin dynamics in a doped S=1/2 Heisenberg Antiferromagnetic chain SrCuO2
We propose to microscopically study the role of defects on spin transport in one of the best approximations to the ideal antiferromagnetic Heisenberg s = ½ chain. By measuring... -
Probing superconductivity, static magnetism and light ion diffusion in molecu...
In 2012 we demonstrated that molecular spacer layers could be intercalated in between FeSe layers resulting in a dramatic enhancement of the critical temperature: FeSe is itself... -
Well, well, well: the free energy landscape of hydrogenated La(Fe,Si)13?
Magnetic cooling promises efficiency savings at room temperature but requires rapid cycling of a magnetic refrigerant in a magnetic field. Refrigerants with first order... -
Li+ Diffusion Behaviour of Activated Carbon-treated Li4Ti5O12
We propose to carry out muon-spin relaxation to examine Li+ diffusion in AC-treated Li4Ti5O12 which contains a small amount of rutile TiO2. Measurements will be carried out over...
