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Search for magnetic domains in frustrated magnet CaFe2O4
We propose to study the temperature dependence of the size and shape of the magnetic domains believed to exist in CaFe2O4 - a frustrated triangular antiferromagnet. Our diffuse... -
SANS experiments on phase separation in Fe-Cr based alloys
Low temperature embrittlement of stainless steels is due to phase separation and in this proposal we will further investigate the underlying mechanisms for phase separation.... -
Unravelling spin fluctuation components in a stripe-ordered cuprate
In previous experiments at ILL we observed a gap in the magnetic excitation spectrum of the stripe-ordered superconductor (La,Nd)2-xSrxCuO4, x=0.12. We observed a spin gap of... -
Charting the increase in spin fluctuations as we approach the critical point ...
The LaFe13-xSix system (x<1.6) has a first order ferromagnetic, FM, to paramagnetic, PM, transition that is tunable in magnetic field, ending at a (tri)critical point (Hcrit,... -
Search for magnetic order in the coupled S=1/2 two-leg spin ladder system Ba2...
Ba2CuTeO6 is a newly discovered S=1/2 spin ladder system containing Cu2+ ladders. Our experiments indicate that this material is in very close proximity to the quantum critical... -
The phase diagram of the spin-density-wave metamagnet Sr3Ru2O7
Sr3Ru2O7 is an unusual layered oxide metamagnetic metal. It has been know for some time that the application of a large magnetic field (~8 T) perpendicular to the RuO2 planes... -
Level crossings in the open ring molecular magnet Cr8Cd
Molecular nanomagnets (MNMs) comprise clusters of exchange coupled transition metal ions which often have a negative anisotropy constant, favoring a ground state with a large... -
Dipolar Ordering of a High Spin Molecular Nanomagnet
Systems with antiferromagnetic ordering that is driven predominantly by dipolar interactions are very rare, as the dipolar interaction is inherently weak compared to the... -
Does the muon reach thermal equilibrium in a frustrated magnet?
The usual assumption that the muon's polarisation relaxes to zero at long times may be incorrect at high B and low T: for 5T and 30mK the Brillouin function gives P=49%. We plan... -
Probing the origin of the superconducting spin-valve effect
Inter-layer exchange coupling through charge and/or spin carriers is the key control mechanism for the field of nano-magnetism and is often coupled to other spintronic effects,... -
Frustration-stabilized skyrmions in centrosymmetric compounds
Skyrmions are chiral magnetic spin textures that exist in a variety of different magnetic materials. Skyrmions are usually stabilized in noncentrosymmetric chiral materials by... -
Detection of Spin-Polarized Conduction Electrons in Si by MuSR
One of the challenges of developing Silicon-based spintronics technology is developing non-destructive methods for characterizing spin-polarized conduction electrons. Si is... -
Magnetic field switching of electric polarisation in Y-type Hexaferrites
The magnetoelectric Y-type hexaferrites demonstrate coupling between magnetism and electric polarisation in relatively small applied magnetic fields, and are hence candidate... -
Magnetic Phase Diagram of Geometrically Frustrated BaDy2O4
In BaDy2O4, the magnetic Dy3+ ions are arranged in a network of triangles and hexagons, and coupled with antiferromagnetic exchange interactions, which gives rise to geometric... -
Competing Antiferromagnetic and Ferromagnetic Ground States in CaFe3Ti4O12
Using high-temperature high-pressure synthetic methods we have recently prepared the new quadruple perovskite CaFe3Ti4O12. Curie-Weiss magnetic susceptibility and Mossbauer data... -
Determination of the ligand field parameters of holmium bisphthalocyanine sin...
We aim to determine the ligand field parameters of the [HoPc2]¿ complex belonging to the family of lanthanide double decker (Ln=Dy3+,Ho3+,Tb3+) single-molecule magnets (SMM),... -
Ground and field induced states in the BaCo2As2O7 and BaCo2(As3O6)2 1D chain ...
One-dimensional (1D) or two-dimensional (2D) topologies between magnetic ions generally favour strong magnetic anisotropy and offer exotic fundamental states and other phenomena... -
The phase diagram of the spin-density-wave metamagnet Sr3Ru2O7
Sr3Ru2O7 is an unusual layered oxide metamagnetic metal. It has been know for some time that the application of a large magnetic field (~8 T) perpendicular to the RuO2 planes... -
Time dependent magnetic structure of Sr3NiIrO6
We have reported magnetic structure of Sr3NiIrO6, which gives two possible solutions. Our theory shows that reported magnetic structure is not ground state magnetic structure.... -
Spin glass behaviour in the disorder-free geometrically frustrated magnet Yb2...
Our susceptibility studies of the frustrated magnet Yb2Sn2O7 has revealed a spin glass transition of the Yb3+ magnetic lattice at T_g = 140 mK. To our knowledge, this...