Christopher Frost

From incommensurate to dispersive spin-fluctuations : The high-energy inelastic spectrum in superconducting YBa2Cu3O6.5

We have investigated the spin-fluctuations at energy transfers up to

A New Hardware/Software Platform and a New 1/E Neutron Source for Soft Error Studies: Testing FPGAs at the ISIS Facility

\ensuremath{\sim}110\phantom{\rule{0.3em}{0ex}}\mathrm{meV}

Quantum criticality and universal scaling of a quantum antiferromagnet

, well above the resonance energy

Facility for fast neutron irradiation tests of electronics at the ISIS spallation neutron source

(33\phantom{\rule{0.3em}{0ex}}\mathrm{meV})

An Efficient and Experimentally Tuned Software-Based Hardening Strategy for Matrix Multiplication on GPUs

in the

Multispinon Continua at Zero and Finite Temperature in a Near-Ideal Heisenberg Chain

\mathrm{Y}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{6.5}

Charge-Collection and Single-Event Upset Measurements at the ISIS Neutron Source

ortho-II superconductor using neutron time-of-flight and triple-axis techniques. The spectrum at high energies differs from the low-energy incommensurate modulations previously reported where the incommensurate wave vector is largely independent of energy. Well above the resonance the peak of the spin response lies at wave vectors that increase with energy. Within error the excitations at all energies above the resonance are best described by a ring around the

Fission diamond detectors for fast-neutron ToF spectroscopy

(\ensuremath{\pi},\ensuremath{\pi})

One- and two-triplon spectra of a cuprate ladder.

position. The isotropic wave-vector pattern differs from a recently reported square pattern in different but related systems. The spin spectral weight at high energies is similar to that in the insulator but the characteristic velocity is

A new dedicated neutron facility for accelerated SEE testing at the ISIS facility

\ensuremath{\sim}40%