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Low Temperature Properties of a Uniform S=1/2 Triangular Lattice System
It is proposed to use ZF and TF muSR to study the low temperature, low field part of the phase diagram of Ba3CuSb2O9, a system with a uniform triangular lattice of S=1/2 Cu ions... -
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... -
Superconductivity and magnetism in Cu2+-based coordination polymer [Cu3C6S6]n
Cu-BHT exhibits perfect kagome lattice of Cu2+ and previous combined magnetization and specific heat results suggested the presence of strong spin fluctuations. If there are... -
Superconductivity and static moments in LuxZr1-xB12
Nonmagnetic impurity substitutions impact on superconducting properties in various ways depending on the pair-breaking mechanism. The aim of the proposed experiment is to... -
A search for the signatures of time reversal symmetry breaking in some superc...
Time reversal symmetry (TRS) breaking in a superconductor is often taken as evidence of unconventional pairing states. The recent observation of TRS breaking in several... -
Time reversal symmetry breaking in superconducting PrOs4Sb12 and its alloys
In 2005 we carried out muon spin relaxation (muSR) experiments in Pr(Os1-xRux)4Sb12 alloys at KEK, Tsukuba, Japan, to investigate the time-reversal symmetry breaking found in... -
Bulk superconductivity in the topological superconductor CuxBi2Se3
Topological insulators are 3D materials with a band gap in the bulk-electronic structure but with gapless, delocalized, surface states. The most studied topological insulator is... -
The structure-magnetism relationship in hydrogen bonded coordination polymers
Gaining control of the building blocks of magnetic materials will enable the design and growth of bespoke magnetic devices. However, the ability to tune the magnetic... -
Superconducting Pairing Symmetry of Single Crystal Organic Superconductor lam...
Organic superconductor lambda-(BETS)2GaCl4 has attracted a great interest due to the low dimensionality, strongly correlated nature since it is lying near the dimer-Mott... -
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... -
Low dimensional magnetism from metal-halide hydrogen bond motifs
We will examine the impact of metal-halide hydrogen bond motifs and their ability to provide low-dimensional superexchange pathways. Specifically, we wish to investigate two new... -
Searching for magnetic order in two nitronyl nitroxide isomers
Using nitronyl nitroxide radicals it is possible to prepare purely organic ferromagnets without inclusion of any transition metal or lanthanide ions. Muons are uniquely... -
The Role of the Electron-Phonon Interaction in Non-Centrosymmetric Supercondu...
The development of spontaneous fields in the superconducting state in non-centrosymmetric superconductors is shown by a number but not all such superconductors. Our recent... -
Probing One-Dimensional Magnetic Order in Tb(HCO2)3 by muSR
Low dimensional magnetism provides a crucial playground for the discovery and exploitation of unconventional magnetic properties. With in this context the study of 1D magnetic... -
Muon spin relaxation study on frustrated pyrohafnates R2Hf2O7 (R = Nd, Sm, Gd...
With the observations of spin ice behaviour in Dy2Ti2O7 and Ho2Ti2O7 the rare earth pyrochlores R2B2O7 have evolved as a hot topic of current research activities. In our effort... -
Superconductivity in the spinels: Cu(Ir_{1-x}Pt_x)2Se4 and CuRh2S4
Spinels, which have formula AB2X4 and crystallise in the cubic space group, exhibit a rich landscape of structural, magnetic and electronic properties. However, superconducting... -
Musr study of non-centrosymmetric heavy-fermion compounds: CeTSi3 (T=Pt and P...
In view of the interesting magnetic properties observed in CeTSi3 (T=Pt and Pd) and superconductivity in LaPdSi3 (TSC= 2.6 K), as well as the theoretical interest in... -
muSR study of frustrated magnets with a spinel structure
Pyrochlore magnets of formula R2Ti2O7 or R2Sn2O7 constitute the paradigm for geometrical frustration on a 3D lattice. Spinel compounds CdR2X4, where the R sublattice forms a... -
The Role of the Electron-Phonon Interaction in Non-Centrosymmetric Supercondu...
Our recent µSR measurements on a polycrystalline sample of Ru7B3 has shown that this material is an excellent example of broken time reversal symmetry on entering the... -
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...