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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... -
Muon studies of Li+ diffusion in high capacity electrodes and high voltage so...
Declining fuel reserves and increasing global energy demands mean developments in energy storage materials are vital. Here, we propose the study of vanadate electrode materials... -
Interlayer and Interparticle Water in Clays
Clay barriers are routinely used in nuclear waste repositories to isolate radionuclides from the biosphere. Such barriers have to be carefully designed to remain effective for... -
Investigation of the magnetic hidden order in Sr2Ir(1-x)RhxO4 iridate with mu...
In the 5d layered perovskite material, Sr2IrO4, spin orbit coupling and strong electron correlations combine to give rise to a spin-orbit coupled Mott insulator, with a... -
Continuation: A Study of AuMu^+ Final States by Dia RF Resonance
Small-sized metal nanoparticles (NPs) are of long standing interest to both magnetism and heterogeneous catalysis. Recent muSR studies of Au NPs encapsulated in mesoporous... -
Impurity-induced frustration in La2CuO4
We plan to investigate by means of zero-field muSR the doping dependence of the sublatticemagnetization in La2Cu1-xZnxO4 and in La2Cu1-xMgxO4. In both systems Cu2+ S=1/2 spins... -
Muon spin relaxation study of biskyrmions in MnNiGa
Skyrmions are chiral spin textures that exist in a variety of magnetic materials. These states are topologically non-trivial, which gives them stability expected to be useful... -
Study of Magnetic Features in WQeakly Mn-Doped ZnGeP2
Continued investigation of magnetic fluctuations in the Mn-doiped chalcopyrite semiconductor ZnGeP2 is proposed using LF-MuSR depolarization rates. Due to ferromagnetism above... -
Probing Li+ diffusion mechanics in NMC bulk and nanomaterials with varying ni...
Recent advances in energy materials have led to the development of high capacity insertion cathodes for Li-ion batteries. One of the most promising of these materials is lithium... -
The Structure of Ca- and Yb-ammonia Solutions: Polarons, Bipolarons and Elect...
In this experiment we propose to perform diffraction on isotopically substituted samples of Ca/Yb:ND/H3 and Ca/Yb:15ND3 at two concentrations (8 and 2 MPM) using the new NIMROD... -
Molecular Dynamics in Polystyrene
The goal of this experiment is to better understand the molecular dynamics in polystyrene in order to shed light on the discrepancy between beta-NMR and low-energy muSR... -
muSR of Polyethylene Oxide: A Simple Proton-Conducting Polymer
Proton-conducting polymer membranes have significant technological applications in hydrogen or methanol fuel cells. muSR can shed light on the mechanisms for proton transport in... -
Photoinduced carrier lifetime in silicon: E-field application for carrier sep...
This continuing experiment is proposed based on our previous experiment RB1510208, which we have carried out just recently. The experiment successfully observed the lifetime of... -
MuSR Studies of the Proton Conducting Polymer Nafion
The fluorinated ionomer Nafion is a material that provides efficient proton conducting membranes for application in important technological areas such as hydrogen fuel cells.... -
Study of low dynamics in the normal phase of iron based superconductors
Since the discovery of the iron-pnictides superconductors most of the efforts has been devoted to the study of the fundamental questions concerning the coexistence of magnetism... -
Investigation of Magnetic Structures in magnetoelectric multiferroic Gd0.5Dy0...
Ferroelectricity in type-II multiferroics is induced by breaking of inversion symmetry by certain type of spin structure below the magnetic ordering temperature. Therefore, a... -
A µSR study of single crystals of the superconductor FeSe1 xTex (0≤x...
Superconductivity was recently discovered in alpha-phase FeSex with a Tc of 8 K. Selenium can be replaced with Tellurium (FeSe1-xTex) and this results in an increase in Tc to 15... -
Probing the carrier-induced donor-to-acceptor transition of muonium in indium...
The first experiment we propose is a search for a shallow-donor signal for muonium in indium oxide. Its observation would test our assertion, based on our measurements of... -
Li diffusion in charged state Lix(Ni1/3Co1/3Mn1/3)O2
This proposal describes a muSR experiment on Li-deficient Lix(Ni1/3Co1/3Mn1/3)O2 to determine a Li diffusion coefficient as a function of the Li content x, because muSR is a... -
Investigation of muonium diffusion, states and charge cycles in vanadium dioxide
We propose a study to characterize diffusive motion of muonium, charge cycles and Mu0 states in vanadium dioxide (VO2) using zero and longitudinal field muon spin depolarization...