L. Capogna

Publication List Details

Period

1998 - 2008

Number

20

Co-Authors

Incommensurate spin density modulation in a copper-oxide chain compound with commensurate charge order (2008)

Raichle, M., Reehuis, M., André, G., Capogna, L., Sofin, M., Jansen, M., ...

Neutron diffraction has been used to determine the magnetic structure of Na$_8$Cu$_5$O$_{10}$, a stoichiometric compound containing chains based on edge-sharing CuO$_4$ plaquettes. The chains are...

Crystal and magnetic structure of (La0.70Ca0.30)(CryMn1-y)O3: a neutron powder diffraction study (2008)

Capogna, L., Martinelli, A., Francesconi, M. G., Radaelli, P. G., Carvajal, J. Rodriguez, Cabeza, O., ...

The crystal and magnetic structure of (La0.70Ca0.30)(CryMn1-y)O3 for y = 0.70, 0.50 and 0.15 has been investigated using neutron powder diffraction. The three samples crystallize in the Pnma space...

Dispersion of the odd magnetic resonant mode in near-optimally doped Bi2Sr2CaCu2O8+d (2007)

Fauqué, B., Sidis, Y., Capogna, L., Ivanov, A., Hradil, K., Ulrich, C., ...

We report a neutron scattering study of the spin excitation spectrum in the superconducting state of slightly overdoped Bi2Sr2CaCu2O8+d system (Tc=87 K). We focus on the dispersion of the resonance...

Odd and even magnetic resonant modes in highly overdoped Bi_2 Sr_2 Ca Cu_2 O_{8+delta} (2006)

Capogna, L., Fauque, B., Sidis, Y., Ulrich, C., Bourges, P., Pailhes, S., ...

We present inelastic neutron scattering data on highly overdoped Bi_2 Sr_2 Ca Cu_2 O_{8+\delta} single crystals with superconducting transition temperature T_C=70 K and, for comparison, a nearly...

Magnetic excitations and phonons in the spin-chain compound NaCu2O2 (2006)

Choi, K. Y., Gnezdilov, V. P., Lemmens, P., Capogna, L., Johnson, M. R., Sofin, M., ...

We report an inelastic light scattering study of single-crystalline NaCu2O2, a spin-chain compound known to exhibit a phase with helical magnetic order at low temperatures. Phonon excitations were...

Magnetic excitations and phonons in the spin-chain compound NaCu2O2 (2005)

Gnezdilov, V. P., Lemmens, P., Capogna, L., Johnson, M. R., Sofin, M., ...

We report an inelastic light scattering study of single-crystalline NaCu$_2$O$_2$, a spin-chain compound known to exhibit a phase with helical magnetic order at low temperatures. Phonon excitations...

Helicoidal magnetic order in a clean copper oxide spin chain compound (2004)

Capogna, L., Mayr, M., Horsch, P., Raichle, M., Kremer, R. K., Sofin, M., ...

We report susceptibility, specific heat, and neutron diffraction measurements on NaCu$_2$O$_2$, a spin-1/2 chain compound isostructural to LiCu$_2$O$_2$, which has been extensively investigated....

Flux-growth and characterization of NaCu2O2 single crystals (2004)

Maljuk, A., Kulakov, A. B., Sofin, M., Capogna, L., Strempfer, J., Lin, C. T., ...

For the first time NaCu2O2 single crystals were prepared by a self-flux technique in Pt crucibles. The as-grown crystals have typical dimensions of 7 x 3 x 0.1 mm(3). Powder and single crystal XRD...

Observation of two-dimensional spin fluctuations in the bilayer ruthenate Sr3Ru2O7 by inelastic neutron scattering (2003)

Capogna, L., Forgan, E. M., Hayden, S. M., Wildes, A., Duffy, J. A., Mackenzie, A. P., ...

We report an observation of two-dimensional incommensurate magnetic fluctuations in the layered metallic perovskite Sr3Ru2O7. The wave vectors where the magnetic fluctuations are strongest are...

Observation of Two-dimensional Spin Fluctuations in the Bilayer Ruthenate Sr3Ru2O7 by Inelastic Neutron Scattering (2002)

Capogna, L., Forgan, E. M., Hayden, S. M., Wildes, A., Duffy, J. A., Mackenzie, A. P., ...

We report the first observation of two-dimensional incommensurate magnetic fluctuations in the layered metallic perovskite Sr3Ru2O7. The wavevectors where the magnetic fluctuations are strongest are...

Metamagnetism and critical fluctuations in high quality single crystals of the bilayer ruthenate Sr3Ru2O7 (2000)

Perry, R. S., Galvin, L. M., Grigera, S. A., Capogna, L., Schofield, A. J., Mackenzie, A. P., ...

We report the results of low temperature transport, specific heat and magnetisation measurements on high quality single crystals of the bilayer perovskite Sr3Ru2O7, which is a close relative of the...

"Wigner crystal" and "stripe" models for the magnetic and crystallographic superstructures of La0.333Ca0 .667MnO3 (1998)

Radaelli, P. G., Cox, D. E., Capogna, L., Cheong, S-W., Marezio, M.

The crystallographic (charge-ordered) and magnetic superstructures of La0.333Ca0.667MnO3 were studied by high-resolution synchrotron x-ray and neutron powder diffraction. In the antiferromagnetic...