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Helium quantum rattling in clathrate hydrate cages studied through neutron Co...
The proposing team is interested in exploring the low-temperature quantum "rattling" dynamics of helium atom(s) trapped in water-based cages (namely the so-called "clathrate... -
Lattice vibrations of hydrogen impurities in a solid neon matrix
In recent incoherent inelastic neutron scattering experiments we have shown that the anharmonic single-particle dynamics of H2 can be measured with high precision in quantum... -
Musr on a 2D quantum spin liquid candidate material without structural disorder.
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.... -
The proton quantum states of the amorphous ices (VESUVIO)
While we now have a complete picture of the average local and intermediate structures of the various amorphous ices, their dynamic behaviour (glass transition and defect... -
Inelastic neutron scattering in the Ce3Co4Sn13 heavy Fermion compound
We propose to use the OSIRIS spectrometer to measure the inelastic magnetic scattering on the newly discovered heavy Fermion compound Ce3Co4Sn13. This compound has one of the... -
INS on a 2D quantum spin liquid candidate material without structural disorder.
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.... -
Muon Spin Resonance investigations on two quantum critical points in CeFeAs1-...
Recently, it has been reported that CeFeAsO belongs to orthorhombic structure where both Fe and Ce moments order antiferromagnetically around 140K and 4K, respectively, whereas... -
Spin Dynamics in the Quantum Critical and Ferromagnetic Regimes of URu2-xRe
Recently, there has been a significant amount of interest in quantum phase transitions and non-Fermi liquid (NFL) behavior exhibited by heavy-fermion compounds. Interestingly... -
Zero field splitting and quasiparticle breakdown in the two-dimensional quant...
In our recent NRSE experiment on the quasi two-dimensional quantum spin liquid PHCC at TRISP at FRM-II, we have found a zero field splitting (ZFS) of the magnon line of about 50... -
Neutron scattering and muSR studies of magnetic phenomena in YFe2Al10: case s...
In strongly correlated electron systems, the proximity to magnetic ordering has been of special interest. Magnetism in this class of systems is often suppressed by the Kondo... -
Temperature dependence of spin dynamics near quantum criticality in an Ising ...
This proposal is part of our research programme to explore the interplay of thermal and quantum fluctuations near zero-temperature quantum phase transitions. Here we apply for a... -
Magnetic ground state of the candidate quantum ice material Pr2Sn2O7
Quantum spin ice is a novel form of matter in which the spins remain dynamic even at absolute zero due to quantum fluctuations. The requirements on the single-ion wavefunction... -
Neutron scattering and muSR studies of magnetic phenomena in YFe2Al10: case s...
In strongly correlated electron systems, the proximity to magnetic ordering has been of special interest. Magnetism in this class of systems is often suppressed by the Kondo... -
Neutron reflection from 3He layer adsorbed on liquid 4He surface
More than four decades ago A. F. Andreev predicted theoretically the existence of quantum states of 3He atoms on free surface of liquid 4He . In other words, at low... -
Critical and quantum critical spins fluctuations in URhGe
Ferromagnetism in URhGe is continuously suppressed with a magnetic field leading to a Quantum Critical Point (QCP) at around 12 T engulfed by a pocket of superconductivity. The... -
Spin dynamics in the 1/3rd magnetization plateau phase of a triangular quantu...
This experiment is part of our research programme to explore novel quantum phases and phase transitions induced by magnetic field in frustrated quantum magnets. The quasi-2D... -
Spin dynamics in the quantum spin ice state of Yb2Ti2O7
We propose to carry out a muSR study of the spin dynamics in two single crystal samples of Yb2Ti2O7. Both samples are notionally stoichiometric but they have been prepared using... -
Continuation of "Magnetic excitations in the quantum spin ice Yb2Ti2O7"
We have recently carried out an inelastic neutron scattering experiment at LET in order to investigate the excitations in the quantum spin ice Yb2Ti2O7. The single crystal...