241 citations · 523 across the 8 of their papers we have counts for
8 papers
Quantized spin waves in the metallic state of magnetoresistive manganites
S. Petit, M. Hennion, F. Moussa +4
High resolution spin waves measurements have been carried out in ferromagnetic (F) La(1-x)(Sr,Ca)xMnO3 with x(Sr)=0.15, 0.175, 0.2, 0.3 and x(Ca)=0.3. In all q-directions, close to…
Hybrid Goldstone modes in multiferroics
S. Pailhes, X. Fabreges, L. P. Regnault +5
By using polarized inelastic neutron scattering measurements, we show that the spin-lattice quantum entanglement in mutliferroics results in hybrid elementary excitations, involvin…
The metal-insulator transition of the ferromagnetic La7/8Sr1/8MnO3 probed by spin waves: a 2D stripe superstructure
M. Hennion, F. Moussa, P. Lehouelleur +2
We report a study of spin waves in hole-doped ferromagnetic La7/8Sr1/8MnO3, in the metallic state (165K) below TC (181K) and through the puzzling metal-insulator transition which o…
Confined spin waves reveal an assembly of nanosize domains in ferromagnetic La(1-x)CaxMnO3 (x=0.17,0.2)
M. Hennion, F. Moussa, P. Lehouelleur +4
We report a study of spin-waves in ferromagnetic LaCaMnO, at concentrations x=0.17 and x=0.2 very close to the metallic transition (x=0.225). Below T, in the…
Unusual magneto-elastic forces stabilize the insulating ferromagnetic state of manganites: the La(0.8)Ca(0.2)$MnO(3) case
M. Hennion, F. Moussa, F. Wang +3
The ferromagnetic and insulating state observed in LaCaMnO, 0.125x0.2, is characterized by structural and magnetic anomalies below T, similar to those o…
Approach to the metal-insulator transition in La(1-x)CaxMnO3 (0<x<.2): magnetic inhomogeneity and spin wave anomaly
G. Biotteau, M. Hennion, F. Moussa +4
We describe the evolution of the static and dynamic spin correlations of LaCaMnO, for x=0.1, 0.125 and 0.2, where the system evolves from the canted magnetic state…