24 citations · 52 across the 3 of their papers we have counts for
6 papers · 1 filter
Dipole-active optical phonons in YTiO_3: ellipsometry study and lattice-dynamics calculations
N. N. Kovaleva, A. V. Boris, L. Capogna +6
The anisotropic complex dielectric response was accurately extracted from spectroscopic ellipsometry measurements at phonon frequencies for the three principal crystallographic dir…
Incommensurate spin density modulation in a copper-oxide chain compound with commensurate charge order
M. Raichle, M. Reehuis, G. André +4
Neutron diffraction has been used to determine the magnetic structure of NaCuO, a stoichiometric compound containing chains based on edge-sharing CuO plaquettes.…
Crystal and magnetic structure of (La0.70Ca0.30)(CryMn1-y)O3: a neutron powder diffraction study
L. Capogna, A. Martinelli, M. G. Francesconi +7
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 i…
Magnetic excitations and phonons in the spin-chain compound NaCu2O2
K. -Y. Choi, V. P. Gnezdilov, P. Lemmens +6
We report an inelastic light scattering study of single-crystalline NaCuO, a spin-chain compound known to exhibit a phase with helical magnetic order at low temperatures. P…
Observation of Two-dimensional Spin Fluctuations in the Bilayer Ruthenate Sr3Ru2O7 by Inelastic Neutron Scattering
L. Capogna, E. M. Forgan, S. M. Hayden +7
We report the first observation of two-dimensional incommensurate magnetic fluctuations in the layered metallic perovskite Sr3Ru2O7. The wavevectors where the magnetic fluctuations…
Metamagnetism and critical fluctuations in high quality single crystals of the bilayer ruthenate Sr3Ru2O7
R. S. Perry, L. M. Galvin, S. A. Grigera +9
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 clos…