31 citations · 143 across the 12 of their papers we have counts for
5 papers · 1 filter
Spontaneous toroidic effects in Ba2CoGe2O7
Pierre Toledano, Dmitry D. Khalyavin, Laurent C. Chapon
The unusual magnetoelectric effects observed in the multiferroic phase arising below TN=6.7K in Ba2CoGe2O7 (BCG) are related to the spontaneous toroidal moment existing in this com…
Helical magnetic state in the distorted triangular lattice of alpha-CaCr2O4
L. C. Chapon, P. Manuel, F. Damay +3
The magnetic properties of the high temperature alpha form of the CaCr2O4 compound have been investigated for the first time by magnetic susceptibility, specific heat and powder ne…
Incommensurate spin-density wave and magnetic lock-in transition in CaFe4As3
P. Manuel, L. C. Chapon, I. S. Todorov +6
The magnetic structure for the newly discovered iron-arsenide compound \CaFeAs has been studied by neutron powder diffraction. Long-range magnetic order is detected below 85K, with…
Directional magnetoelectric effects in MnWO4: magnetic sources of the electric polarization
P. Toledano, B. Mettout, W. Schranz +1
The ferroelectric order and magnetic field induced effects observed in the spiral phase of MnWO4 are described theoretically. It is demonstrated explicitly that the Dzyaloshinskii-…
Induced ferroelectric phases in TbMn_2O_5
P. Toledano, W. Schranz, G. Krexner
The magnetostructural transitions and magnetoelectric effects reported in TbMn2O5 are described theoretically and shown to correspond to two essentially different mechanisms for th…