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Quantum critical dynamics in the presence of disorder
Quantum phase transitions are abrupt qualitative changes of a system's groundstate occurring only at exactly zero temperature. Such critical points - although never reachable... -
Quantum renormalisation of spin waves in a square lattice antiferromagnet
The two dimensional Heisenberg antiferromagnet on a square lattice is one of the most studied model in quantum magnetism . This is in part due to its intrinsic interest but also... -
Excitations of the Zeeman ladder in a transverse field in the Ising antiferro...
The excitations of an Ising antiferromagnetic chain have been studied in the past and are known to form either continuous spectrum or Zeeman ladders. Such a system can be... -
The coupling of spin and charge correlations in La2-xSrxCuO4
Charge density wave (CDW) order has recently been established as a generic feature of high-temperature cuprate superconductors. It occurs near 1/8 doping and has been observed... -
Correlating local structure with properties in piezoelectrics, and multiferro...
Discovery and development of advanced materials requires understanding and control of the relationship between composition, structure and function. Traditionally, design has... -
Study of a spin gap and CEF excitations in the caged compounds CeT2Al10 (T=Fe...
This proposal was submitted on MERLIN (RB1010206) and beam time was allocated on MARI. We have carried out low energy measurements on MARI and found a clear evidence of the spin... -
Towards understanding hydrogen defects in perdeuterated systems
The use of deuteration to overcome the difficulties associated with the incoherent scattering from hydrogen, is a well established technique. However, there are increasing... -
Low-energy magnetic excitations in the superconducting state of Sr2RuO4: open...
We propose to study the magnetic fluctuations of the unconventional superconductor Sr2RuO4 in the superconducting state extending our previous experiments on a cold triple-axis... -
Search for Emergent Photon Excitation in Pr Based Quantum Spin Ice Candidates
By introducing transvers terms in the effective spin-1/2 Hamiltonian on the pyrochlore lattice, the quantum spin ice (QSI) state, a special quantum spin liquid whose emergent... -
Neutron spectroscopy of a series of Ruthenium triangles: a new possible route...
Most of our technology is based on the use of charge, however the electron also has another less well-understood (or exploited) property called spin. The application of this... -
Dynamics of Water on Surface of Reverse Osmotic Membranes
We are proposing 4 days of beamtime on LET or 8 days on IRIS [using PG(004) reflection] to complete the experiment on a water/polyamide system which was started in 2013.... -
LET commisioning
This dataset has no description
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Magnetic frustration induced by applied magnetic fields in CeRhIn5
Quantum critical points (QCPs) have attracted continuous scientific interest due to the emergent phenomena observed in their vicinity, including unconventional superconductivity... -
Investigation of a frustrated quantum magnet with novel interaction scheme
SrCuTe2O6 consists of a 3-dimensional arrangement of spin-1/2 Cu ions that are coupled into network of isolated triangles,a highly frustrated hyperkagome lattice consisting of... -
One Dimensional Metal Chains on a Frustrated Triangular Lattice.
Nature abhors disorder and degeneracy at low temperature. Designing materials that confront this requirement can therefore lead to new states in which the degeneracy is lifted.... -
Anomalous lattice dynamics of the elemental superconductor niobium
Phonon lifetimes in BCS superconductors provide information on the details of the electron-phonon coupling mechanism. In 2008 high-resolution neutron inelastic scattering... -
The coupling of spin and charge correlations in La2-xSrxCuO4
Charge density wave (CDW) order has recently been established as a generic feature of high-temperature cuprate superconductors. It occurs near 1/8 doping and has been observed... -
Vibrational density of states for GeO2, an archetypal ¿strong¿ network glass
The object of this proposal is to measure the partial vibrational density of states (VDOS) within the incoherent approximation for the archetypal 'strong' network forming glass... -
Magnetic excitation spectrum of new quantum magnet
This dataset has no description
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Cu-ion mobility and lattice dynamics in the liquid-like phase of Cu2Se
Thermoelectricity enables the conversion of waste heat into useful power, and it is becoming increasingly important for power recovery applications at high temperature, where...
