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Muon spin rotation study of LixFeyAs and NaFeAs superconductors
We will examine the magnetic and superconducting properties of these two novel superconducting systems using muon spin rotation and relaxation experiments. Stoichiometric LiFeAs... -
Paramagnetic excitations in the topological Weyl semimetal Co3Sn2S2
In a magnetic Weyl semimetal (WSM) with broken time-reversal symmetry, large intrinsic anomalous Hall effect is expected if the Weyl nodes are close to Fermi energy, which... -
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... -
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... -
Local structure, dynamics and magnetism of the phases of cobalt imidazolate
This proposal concerns the metal-organic framework (MOF), cobalt imidazolate. Imidazole (im) is a small, flat organic molecule that forms slightly bent metal-im-metal linkages,... -
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... -
Magnetic ground states in correlated alkali-metal triphenylides
Polycyclic aromatic hydrocarbons have emerged as an exciting class of materials with the report of superconductivity in alkali doped picene with Tc=18 K. However, due to poor... -
Ionization of Neutral Shallow Donor Muonium in beta-Ga2O3
We propose RF-MuSR experiments focused on confirming the two shallow Mu donor states tentatively observed in single crystalline beta-Ga2O3 samples. This material is a candidate... -
muSR study on non-centrosymmetric Ce-based heavy fermion superconductors: CeT...
Recently a handful of non-centrosymmetric Ce-based HF compounds with general formula CeTX3 (T=transition mental and X=Si or Ge) have been reported to exhibit superconductivity... -
Investigating the magnetic ground states in complex manganese based oxides
The geometric frustration, combined with other parameters like the net quantum spin state (1/2, 1 or 3/2) is expected to give rise the exotic magnetic ground states such as the... -
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... -
muSR studies of expanded fullerides close to the Mott transition
Fulleride superconductivity is experiencing a renaissance of interest following our recent discovery of superconductivity proximate to an antiferromagnetic Mott insulating state... -
Muon spin relaxation study of R2RuO5 (R = Pr, Nd, Sm, Tb)
R2RuO5 (R = Pr, Nd, Sm, Gd, Tb) are known to exhibit interesting physical properties. They all show magnetic ordering between 8 ¿ 24 K. They also show large Sommerfeld...
