R. I. Bewley

High energy spin excitations in BaFe2As2 (2008)

Ewings, R. A., Perring, T. G., Bewley, R. I., Guidi, T., Pitcher, M. J., Parker, D. R., ...

We report neutron scattering measurements of cooperative spin excitations in antiferromagnetically ordered BaFe2As2, the parent phase of an iron pnictide superconductor. The data extend up to ~100meV...

Resonant Spin Excitation in the High Temperature Superconductor Ba0.6K0.4Fe2As2 (2008)

Christianson, A. D., Goremychkin, E. A., Osborn, R., Rosenkranz, S., Lumsden, M. D., Malliakas, C. D., ...

The recent observations of superconductivity at temperatures up to 55K in compounds containing layers of iron arsenide have revealed a new class of high temperature superconductors that show striking...

Influence of static Jahn-Teller distortion on the magnetic excitation spectrum of PrO2: A synchrotron x-ray and neutron inelastic scattering study (2007)

Webster, C. H., Helme, L. M., Boothroyd, A. T., McMorrow, D. F., Wilkins, S. B., Detlefs, C., ...

A synchrotron x-ray diffraction study of the crystallographic structure of PrO2 in the Jahn-Teller distorted phase is reported. The distortion of the oxygen sublattice, which was previously...

Understanding the quadrupolar structures of UPd3UPd3 (2007)

McEwen, K.A., Walker, H.C., Le, M.D., McMorrow, D.F., Colineau, E., Wastin, F., ...

UPd3 exhibits four phase transitions below T0 = 7.8 K, attributed to a succession of antiferroquadrupolar (AFQ) orderings of the 5f2 uranium ions localised on the quasi-cubic sites of the dhcp...

Spin gap in CeFe4Sb12 studied by heat capacity and inelastic neutron scattering (2007)

Viennois, R., Girard, L., Chapon, L. C., Adroja, D. T., Bewley, R. I., Ravot, D., ...

Magnetic spectral response and lattice properties in mixed-valence Sm1−xYxS solid solutions studied with x-ray diffraction, x-ray absorption spectroscopy, and inelastic neutron scattering (2006)

P.A. Alekseev, E.V. Nefedova, K.S. Nemkovski, V.N. Lazukov, ...

Journal article

A study of CeB2C2 using inelastic neutron scattering (2006)

Hillier, A.D., Manuel, P., Adroja, D.T., Bewley, R.I., Rainford, B.D.

Inelastic neutron scattering measurements have been carried out to investigate the crystal field (CF) excitations of CeB2C2. The crystal field excitations have large energy widths, indicating strong...

Neutron inelastic scattering investigation of the magnetic excitations in Cu_2Te_2O_5X_2 (X=Br, Cl) (2005)

Crowe, S. J., Majumdar, S., Lees, M. R., Paul, D. McK., Bewley, R. I., Levett, S. J., ...

Neutron inelastic scattering investigations have been performed on the spin tetrahedral system Cu_2Te_2O_5X_2 (X = Cl, Br). We report the observation of magnetic excitations with a dispersive...

A study of the anti-ferromagnetic quadrupolar ordering in (DyB2C2)-B-11 through inelastic neutron scattering (2005)

Hillier, A.D., Adroja, D.T., Manuel, P., Bewley, R.I., Kockelmann, W., Rainford, B.D.

Inelastic neutron scattering measurements have been carried out to investigate the crystal field (CF) excitations of DyB2C2 in order to understand the mechanisms of the quadrupolar ordering (TQ)...

Magnetic excitations in UCu2Sn (2002)

Allen, JP, McEwen, K A, Bewley, R I

Exchange and crystal field in Sm-based magnets. I. Inelastic neutron scattering and high-field magnetization study of Sm2Fe17 and Sm2Fe17N3 (2002)

Sippel, A, Jahn, L, Loewenhaupt, M, Eckert, D, Kerschl, P, Handstein, A, ...

f-Electron excitation in the neutron spectra of mixed-valence Sm§1§-§xY§xS. (2002)

Alekseev, P.A., Mignot, J.M., Staub, U., Ochiai, A., Golubkov, A.V., Braden, M., ...

Proc.of the Internat.Conf.on Strongly Correlated Electron Systems (SCES 2001), Ann Arbor, Mich., August 6-10, 2001

Localized 4f States and Dynamic Jahn-Teller Effect in PrO2 (2001)

Bewley, R. I., Boothroyd, A. T., Currie, D. B., Eccleston, R. S., Gardiner, C. H., Lister, S. J. S., ...