-
Isovalent cation substitution and the AF-SC boundary of oxypnictides
We have prepared a new family of electron-doped oxypnictides \RFeF\ with the same average Rare Earth radius as that yielding the highest superconducting Tc to date, i.e. the... -
Carrier density in novel Li ionic conductors studied with muons
When we know an intrinsic diffusion coefficient of Li-ion (D) in an ionic conductor, we could estimate a number of mobile Li ions, i.e. carrier density (n), from ionic... -
A Multiparameter muSR Study for Bioelectronic Conductors
Advanced health informatics is a grand challenge for 21st century medicine. The aim is to develop devices to enhance personalised healthcare. Part of such devices is selecting... -
Low temperature localised/delocalised transport regime transitions in the P3H...
The aims of this proposal are to study the ALC resonance in crystalline and disordered P3HT at temperatures below 4.2K, as for crystalline P3HT a cross-over between localised... -
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... -
Cyclic Processes in Mid-Range SiGe Alloys
We propose longitudinal muon spin depolarization measurements to extract the energy for the T-site Mu acceptor level in mid-range SiGe alloys where a direct determination of the... -
Electron spin relaxation measurements in polymeric systems
This proposal looks to study the electron spin relaxation using high field ALC measurements in two polymers, which differ only by the non-metal (i.e S or Se) in the polymer... -
MuSR search for fluctuating loop currents in cuprates
The origin of the pseudogap region below a temperature T* is at the heart of the mysteries of high-Tc cuprate superconductors.The proposed broken time-reversal and inversion... -
muSR investigation to probe spin fluctuations in the ordered phase of (Nd1-xC...
From our current results of (Nd1-xCax)2Ir2O7, the internal field at 1.5 K increases with increasing the hole doping, the relaxation rate at 50 K increases with increasing the... -
Quantum State Manipulation in PTFE.
Discrete energy level form in quantum mechanical systems and if carefully measured the population density of the levels can be probed and manipulated. The consequence of this... -
Investigation of the Negative Thermal Expansion in (Sr,Ca)FeO2 with FeO4 squa...
SrFeO2 bears a square planar oxygen coordination around Fe2+. The rarity of this structure led us to study the substitution of strontium by calcium and we obtained the solid... -
Effect of electric field on paramagnetic state formation in molecular semicon...
The effect of electric field on the diamagnetic and paramagetic muon spin rotation signals will be investigated for the organic molecular semiconductors NPB and TPBi . These... -
Novel ground states and spin ordering in iridate pyrochlores
We request four days of beam time to conduct zero and longitudinal field measurements on iridate pyrochlores A2Ir2O7 (A = Y, Lu, Nd) in the temperature range 200 K to 2 K and in... -
Investigation of carrier transport in the organic semiconductor 8-hydroxy-qui...
Using the Emu spectrometer at ISIS we have recently studied charge carrier transport in the technologically important molecule 8-hydroxy-quinoline aluminium, by probing the... -
Na order and diffusion in NaxCoO2: Part II
Recently there have been reports that high-temperature sodium order and dynamics in NaxCoO2 (NCO) can strongly influence both the electronic & magnetic properties at low... -
Muon spin-relaxation probe of chiral spin-liquid state in YBaCo4O7
Geometrically frustrated antiferromagnets RBa(Co/Fe)4O7 (R=rare earth or Y) exhibit a weak ferromagnetic component in the high-temperature spin-liquid phase. Based on a symmetry... -
Muonium in alpha-boron
Previous muon experiments have identified a muonium state in the commonly occuring, but complex, beta rhombohedral form of elemental boron. To complement recent theoretical work... -
Investigation of lithium diffusion in N-doped Li3+xVO4-xNx ceramics using µSR
We wish to complete muon spectroscopic experiments on materials from a ceramic system of interest for possible solid electrolyte applications in lithium-ion battery devices:... -
Motion of Positively Charged Muonium Centres in w-ZnO
We propose to determine temperature dependent diffusion parameters of positively charged muonium centres in w-ZnO. Specifically, we would like to exploit the zero field tools to... -
An Investigation of Magnetic Transitions in NdMn1-xCoxAsO0.95F0.05 (x = 0.03,...
We have recently reported colossal magnetoresistance (CMR) in NdMnAsO0.95F0.05. The CMR in NdMnAsO1-xFx arises due to competition between a strongly correlated antiferromagnetic...
