One-dimensional magnetic fluctuations in the spin-2 triangular lattice \alpha-NaMnO2 (2009)
Stock, C., Chapon, L. C., Adamopoulos, O., Lappas, A., Giot, M., Taylor, J. W., ...
The S=2 anisotropic triangular lattice alpha-NaMnO2 is studied by neutron inelastic scattering. Antiferromagnetic order occurs at T ~ 45 K with opening of a spin gap. The spectral weight of the...
Magnetic correlations in YBaCo4O7 probed by single-crystal neutron scattering (2009)
Manuel, P., Chapon, L. C., Radaelli, P. G., Zheng, H., Mitchell, J. F.
We have studied the frustrated system YBaCo4O7 generally described as an alternating stacking of Kagome and triangular layers of magnetic ions on a trigonal lattice, by single crystal neutron...
Multiferroicity and spiral magnetism in FeVO$_4$ with quenched Fe orbital moments (2008)
Daoud-Aladine, A., Kundys, B., Martin, C., Radaelli, P. G., Brown, P. J., Simon, C., ...
FeVO$_4$ has been studied by heat capacity, magnetic susceptibility, electric polarization and single crystal neutron diffraction experiments. The triclinic crystal structure is made of...
Origin of the long-wavelength magnetic modulation in Ca3Co2O6 (2008)
The origin of the long-wavelength incommensurate magnetic structure of Ca3Co2O6 is discussed considering possible inter-chains super-superexchange paths. The experimental value of the propagation...
Low-temperature magnetic ordering in SrEr$_2$O$_4$ (2008)
Petrenko, O. A., Balakrishnan, G., Wilson, N. R., De Brion, S., Suard, E., Chapon, L. C.
SrEr$_2$O$_4$ has been characterised by low-temperature powder neutron diffraction, as well as single crystal specific heat and magnetisation measurements. Magnetisation measurements show that the...
Radaelli, P. G., Vecchini, C., Chapon, L. C., Brown, P. J., Park, S., Cheong, S-W.
We have determined the magnetic structure of the low-temperature incommensurate phase of multiferroic YMn2O5 using single-crystal neutron diffraction. By employing corepresentation analysis, we have...
The nature of the magnetic order in Ca3Co2O6 (2008)
Agrestini, S., Chapon, L. C., Daoud-Aladine, A., Schefer, J., Gukasov, A., Mazzoli, C., ...
We present a detailed powder and single crystal neutron diffraction study of the spin chain compound Ca3Co2O6. Below 25 K, the system orders magnetically with a modulated partially disordered...
Chapon, L. C., Stock, C., Radaelli, P. G., Martin, C.
The weakly interacting S=1/2 dimers system Sr3Cr2O8 has been investigated by powder neutron diffraction and inelastic neutron scattering. Our data reveal a structural phase transition below room...
A Neutron diffraction study of multiferroics RMn2O5 (2008)
Radaelli, P. G., Chapon, L. C.
The magnetic properties of RMn2O5 multiferrroics as obtained by unpolarized and polarized neutron diffraction experiments are reviewed. We discuss the qualitative features of the magnetic phase...
Radaelli, P. G., Chapon, L. C., Daoud-Aladine, A., Vecchini, C., Brown, P. J., Chatterji, T., ...
We employ neutron spherical polarimetry to determine the nature and population of the coexisting antiferromagnetic domains in multiferroic YMn2O5. By applying an electric field, we prove that...
The commensurate phase of multiferroic HoMn2O5 studied by X-ray magnetic scattering (2008)
Beutier, G., Bombardi, A., Vecchini, C., Radaelli, P. G., Park, S., Cheong, S-W., ...
The commensurate phase of multiferroic HoMn2O5 was studied by X-ray magnetic scattering, both off resonance and in resonant conditions at the Ho-L3 edge. Below 40 K, magnetic ordering at the Ho sites...
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., ...
Enhanced ferroelectric polarization by induced Dy spin-order in multiferroic DyMnO3 (2006)
Prokhnenko, O, Feyerherm, R, Dudzik, E, Landsgesell, S, Aliouane, N, Chapon, L C, ...
Magnetic and structural instabilities in CePd2Al2 and LaPd2Al2 (2006)
Chapon, L.C., Goremychkin, E.A., Osborn, R., Rainford, B.D., Short, S.
We have investigated the crystal and magnetic structure of the RPd2Al2 compounds (R=La, Ce) by neutron powder diffraction (ND) and inelastic neutron scattering (INS). The ND study shows that both...
Magnetic order and lattice anomalies in the J1-J2 model system VOMoO4 (2005)
Bombardi, A, Chapon, L C, Margiolaki, I, Mazzoli, C, Gonthier, S, Duc, F, ...
High-resolution x-ray and neutron powder-diffraction measurements were performed on polycrystalline VOMoO4. Below .40 K the system orders in a simple Néel antiferromagnetic state spropagation vector...
Spin excitations in 3D molecular magnets probed by neutron scattering (2002)
Bordallo, H.N., Chapon, L.C., Cook, J.C., Copley, J.R.D., Goremychkin, E., Kern, S., ...
The emerging field of molecular magnetism constitutes a new branch of materials science that deals with the magnetic properties of molecules, or assemblies of molecules, that contain magnetic...