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Novel ground states and spin ordering in pyrochlore iridates
We request four days of beam time to conduct zero, transverse, and longitudinal field measurements on pyrochlore iridates A2Ir2O7 (A-227) with A = Yb, Y, Nd in the temperature... -
Varying oxygen content in the quantum spin ice Tb2Ti2O7
Tb2Ti2O7 is one of two compounds identified as potential quantum spin ices. As with other oxide pyrochlores the properties depend sensitively on the oxygen stoichiometry. Most... -
muSR in Rare-earth doped Phenanthrene Superconductors
We plan to perform transverse field and zero-field μSR experiments to investigate the temperature dependence of the relaxation rate in the superconducting phase of... -
µSR investigations of magnetoelectric 4d-based dimer system Ba3NdRu2O9
The magnetic ground state of a compound containing higher d-orbital (4d/5d) is fascinating due to its various competing effects like extended orbital, pronounced crystal field... -
Probing the Magnetism and Suspected Quantum Fluctuations in Green Dioptase
It has been suggested that within green dipotase there the magnetism is dominated by quantum flucuations but evidence for this is not definitive. This means that in this... -
Topological Phase Transitions Driven by Magnetic Phase Transitions in FexBi2Te3
Topological insulators are currently a subject of intense research and potential for spin-electronic devices. The breaking of gauge symmetry or time reversal symmetry(TRS) is a... -
A muSR spectroscopic study of the spin dynamics and reentrant spin-glass tran...
We have recently synthesised the novel iridocuprate IrSr2Sm1.15Ce0.85Cu2O10. This material exhibits a complex temperature dependence of the magnetic susceptibility with multiple... -
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... -
The Effect of Pressure on the Low Temperature Magnetic Structure of the CMR M...
Colossal magnetoresistance (CMR) is observed in the oxypnictide NdMnAsO1-xFx (x = 0 - 0.085) at low temperature. The CMR in NdMnAsO1-xFx arises due to competition between a... -
Controlling superfluid stiffness and Tc in new pnictide superconductors
Our previous studies of superconducting LiFeAs derivatives revealed a significant difference in Uemura scaling compared with all other studied pnictides. This experiment is... -
MuSR Study to Investigate the Magnetism of Ca3Cu1-xMn1+xO6 (x = 0.07): Contin...
One-dimensional (1D) spin chain is important for understanding low-dimensional magnetism and useful for advancing quantum communications. In the present proposal we are... -
Oxygen deficiency in the quantum spin ice Tb2Ti2O7
Tb2Ti2O7 is one of two compounds identified as potential quantum spin ices. As with other oxide pyrochlores the properties depend sensitively on the oxygen content. Most... -
μSR study on Heisenberg spin ½ dimer NH4CuPO4·H2O
Heisenberg spin 1/2 systems show exotic nature of ground state, which gives rise to a number of interesting quantum phenomena, like being a state of quantum mechanically... -
Muon Spin Resonance investigations on two quantum critical points in CeFeAs1-...
Recently, it has been reported that CeFeAsO belongs to orthorhombic structure where both Fe and Ce moments order antiferromagnetically around 140K and 4K, respectively, whereas... -
Local Field fluctuations and Mu Dynamics in Vanadium Dioxide Compounds
This is an in depth study of magnetic fluctuations and local field dynamics leading into the low temperature magnetic phase of Vanadium Oxide compounds (VO2, VO2:W and VO2:Ti)... -
Muonium in widegap oxides
This proposal is part of a long-range program aiming at determining the stable charge-state configurations, site and impurity energy levels (donor and/or acceptor) of hydrogen... -
Low Temperature Study of the Cluster Glass Phase in Ni(TCNQ)2
Recently there has been an M(TCNQ)2, where M=Mn, Co, Fe and Ni, series synthesised where all samples formed a stochiometric glassy ferromagnetic salt. We have focused on the... -
Soft chemistry tuning between magnetism and superconductivity in K{1-x}Fe{2-y...
Traditional high-temperature synthesis techniques can be used to vary the composition of K{1-x}Fe{2-y}Se2 up to certain limits. We have found a way to extend the limits on the K... -
Probing glassy magnetic transitions in structurally disordered (defect fluori...
Cubic A2B2O7 oxides with A standing for a rare-earth element and B for a transition or main block metal have been systematically studied for their frequently exotic... -
Muon-spin rotation study of the in-plane magnetic penetration depth of REFe_(...
We propose a TF-muSR investigation of the superconducting properties of the REFe_(1-y)Ru_yAsO_{1-x}F_x compound (RE=La, Sm). In this system the substitution of Fe by the...
