-
Pressure effect on multiferroicity in RbFe(MoO4)2 investigated by neutron dif...
We propose to perform neutron diffraction experiments under high-pressure and high-magnetic-field on multiferroic RbFe(MoO4)2 (RFMO) using WISH in combination with a... -
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... -
Structural distortions and magnetic ordering in oxygen depleted spin ice
Geometrical frustration in the spin ice material Dy2Ti2O7 leads to macroscopic degeneracy and the observation of magnetic diffuse neutron scattering down to the lowest... -
Magnetism, structural distortion and metal-insulator transition in two novel ...
We are interested in a family of double perovskites which have remarkable properties. One member of this family, Pb2CaOsO6, transitions from behaving like a metal to being... -
Direct Observation of Magnetic Excitons in LaCoO3.
LaCoO3 has a thermally induced spin state transition from an S=0 (<90K) to an excited state. In the low spin state localized holes (electrons) bound to cobalt ions or oxygen... -
Defects and spin correlations in yttrium-doped spin ice
Excitations in spin ice fractionalize into de-confined magnetic monopoles that interact with each other via the magnetic Coulomb interaction. Substituting rare earth ions with... -
Spin-Lattice Coupling in spin ice Tb2Ti2O7
The rare earth titanates pyrochlores R2Ti2O7 are a topic of intense research focus owing to their perfect realisation of classical dipolar spin ice physics and the monopole... -
Defect structure of the stuffed pyrochlore Yb2+xTi2-xO7-x/2
The magnetic ground states of geometrically frustrated pyrochlores are highly sensitive to the presence of defects. The stuffing of rare-earth ions on titanium sites has... -
Defect structure of oxygen-deficient Yb2Zr2O6.5
Ytterbium zirconate is of fundamental interest as a model frustrated magnet, and of potential technological importance as a thermal barrier material. In both cases oxygen... -
Defect structure of the stuffed pyrochlore Yb2+xTi2-xO7-x/2
The magnetic ground states of geometrically frustrated pyrochlores are highly sensitive to the presence of defects. The stuffing of rare-earth ions on titanium sites has... -
Investigation of magnon dynamics of rare-earth garnet Ho3Fe5O12
Rare-earth Iron garnets (RE3Fe5O12) have been in the focus of active research for the last five decades due to their fascinating properties, such as large magnetostriction,... -
Single crystal study of a-RuCl3, a quantum magnet on a honeycomb lattice
a-RuCl3 is a honeycomb lattice system which is thought to be close to a spin liquid state. The layers are weakly coupled and therefore the system is susceptible to stacking... -
Dirac Point and Topological Triplon Bands in the Shastry-Sutherland Material ...
SrCu$_2$(BO$_3$)$_2$ (SCBO) is a very much studied quantum magnet that is most well known for its ground state of coupled singlets and multiple magnetization plateaux. Recently,... -
Unconventional superconductivity in quasi-1D K_2Cr_3As_3 (QLCR)
Metallic systems with one-dimensional chain-like atomic structure can support unusual mechanisms for electron pairing leading to superconductivity. K_2Cr_3As_3 is one of a... -
Spin-Lattice Coupling in spin ice Tb2Ti2O7
The rare earth titanates pyrochlores R2Ti2O7 are a topic of intense research focus owing to their perfect realisation of classical dipolar spin ice physics and the monopole... -
Phonons and disorder in Yb2Ti2O7
The pyrochlores provide an excellent model system for studying the interaction of framework vibrational modes, defects and magnetism. We propose to investigate these couplings... -
Anomalous magnetism in oxygen-deficient scandium-doped spin ice
Our previous diffuse neutron scattering experiment on SXD showed that oxygen vacancies are the dominant defects in spin ice. The substitution of tetravalent titanium by... -
Phonons and disorder in Yb2Ti2O7
The pyrochlores provide an excellent model system for studying the interaction of framework vibrational modes, defects and magnetism. We propose to investigate these couplings... -
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... -
Magnetism in the inverse spinel ScMn2O4
The inverse spinel ScMn2O4 contains a mixture of Mn2+ and Mn3+ ions and shows probable ferrimagnetic order below 58 K. This proposal aims to investigate this magnetic transition...
