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Magnetic critical scattering in UGe2 under pressure
The proposal is to measure the low-energy spin dynamics of the ferromagnetic superconductor UGe2 at the pressure which maximizes superconducting transition temperature and at... -
Unconventional slow spin fluctuations in Ba122 iron-based superconductors
The iron-based superconductors are at the forefront of the research on unconventional superconductivity. The Barium-122 systems, doped with electrons, reveal a non-trivial... -
Control of the electronic state in new pnictide superconductors using doping
The properties of pnictide superconductors can be controlled exquisitely by chemical doping. We have identified some key systems in which to explore this effect which should... -
Magnetic-field penetration depth in C60 superconductors across the supercondu...
Cs3C60 is driven to a bulk superconductor without symmetry change by the application of pressure. Tc passes through a maximum of 38 K at 6 kbar. We have recently isolated the... -
Studying Electron Freezing and The Emergence of Static Magentic Order in Nb a...
One of the technological goals is to create materials that show high permittivity and low dielectric loss, which has been achieved by the co-doping of Nb and In into rutile... -
In-situ study of mechanism for magnetovolume effect in Cr-Fe alloys
Negative thermal expansion (NTE) materials, the volume of a material abnormally contract with the increase of temperature, is closed related to the magnetovolume effect (MVE) in... -
Spin dynamics of Ce in the Noncentrosymmetric Heavy-Fermion Superconductors C...
In centrosymmetric heavy-fermion (HF) superconductors Cooper pairs have either singlet or triplet symmetry. Recently a handful of non-centrosymmetric Ce-based HF compounds have... -
Superconducting intercalates of FeSe tuned in situ with ammonia
We propose to study two phases of Na-NH3 intercalated FeSe which have distinct values of Tc, both close to 40 K, but different concentrations of NH3 and quite distinct crystal... -
QLCR Spectroscopy of Solid Nitrogen
Quadrupolar level crossing resonance (QLCR) occurs in the muSR of solids with diamagnetic muon states in close proximity to quadrupolar nuclei. This effect provides uniquely... -
Spin Dynamics in the Quantum Critical and Ferromagnetic Regimes of URu2-xRe
Recently, there has been a significant amount of interest in quantum phase transitions and non-Fermi liquid (NFL) behavior exhibited by heavy-fermion compounds. Interestingly... -
Organometallic Radicals
Avoided level crossing muon spin resonance (ALC-muSR) is an exceptional tool for determining the structure and probing the dynamics of radicals but there have been only a few... -
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... -
A MuSR study of the superconductivity in ACa2Fe4As4F2 (A = K, Rb, Cs)
The iron pnictide (Fe-Pn) superconductors were the second family of high temperature superconductors to be discovered and have a number of different crystal structures. We... -
Muon spin rotation study on PrTSi3 (T = Ir, Rh and Ru)
Recently we have investigated three new ternary intermetallic compounds PrTSi3 (T = Ir, Rh and Ru) which form in BaNiSn3-type tetragonal structure. The susceptibility exhibits... -
Probing the magnetic ground state in one dimensional magnetic systems Ba3CrS5...
Most of the one dimensional spin chain compounds are antiferromagnetic with a rich magnetic phase diagram due to the magnetic frustration. We have synthesized Ba3CrS5 and... -
Local magnetism, magnetic fluctuations and disorder, and lattice distortions ...
We aim at performing temperature (2-300K) and magnetic field (0-5T) dependent muon SR on a 1X1 cm2 mosaic, made of 4* 5x5x2 mm3 TbMn0.98Fe0.02O3 single crystals (largest area... -
Detailed investigation of the magnetic interaction as a function of temperature
In the series R2PdSi3,the Nd compound is considered to be an anomalous as it orders ferromagnetically (TC= 16 K) with a weak frequency-dependent ac susceptibility (χ)... -
Superconducting ammonia-rich metal/ammonia intercalates of FeSe
The discovery of superconductivity at up to 55 K in a series of iron arsenide and selenide materials has ignited huge interest. These compounds show unique features that are...