19 datasets found

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...

As part of a project to develop new electronic materials based on the coupling of electronic and structural properties in new perovskites we have been investigating the...

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...

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...

The ordered double perovskite Sr2CuWO6 is a quasi-two dimensional J1/J2 frustrated square lattice model antiferromagnet. The divalent Cu carries S = 1/2 while the W (VI) is 4d0....

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...

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...

Lithiation can be used to control the superconductivity in layered lithium iron selenide hydroxides, transferring iron from one layer (the lithium hydroxide layer) to the active...

We propose to perform zero-field muon spin rotation studies of S=1 honeycomb antiferromagnet BaNi2V2O8 which is an ideal physical realization of the quasi-2D magnetic system....

In the present project we will focus on critical behaviour of Cu3(pyrazine)[W(CN)8]2 revealing magnetic phase transition at Tc=43 K. The findings will be compared to those...

FCC Cs3C60 can be driven to a bulk superconducting state without symmetry change by the application of pressure. Its Tc passes through a maximum of 35 K at 6 kbar. We have been...

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...

TbMn0.98Fe0.02O3 is an interesting multiferroic material, as the partial substitution of the Jahn-Teller active Mn3+ cation by the non-Jahn-Teller active Fe3+ has remarkable...

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...

FeSe is a superconductor below 8.5 K. Very recently, we have found superconductivity in a wide compositional range in a series of layered lithium iron selenide hydroxides....

In this continuation proposal we will conclude our muon study of FeCrAs, a recently re-examined material that displays many of the above characteristics, suggesting that it is a...

The increasing global demand for portable energy means that the search for new electrode materials for rechargeable solid-state batteries is an important scientific challenge....

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...

One of the most studied skyrmion-hosting materials is the magnetoelectric insulator Cu2OSeO3 which raises the exciting prospect of manipulating the skyrmion-phase through the...