R. Johnson

activity

20082023

most citedGiant improper ferroelectricity in the ferroaxial magnet CaMn7O12

296 citations · 1.7k across the 40 of their papers we have counts for

collaborators

Showing 2011Show all

3 papers · 1 filter

cond-mat.str-el2011★ 296 cited

Giant improper ferroelectricity in the ferroaxial magnet CaMn7O12

R. D. Johnson, L. C. Chapon, D. D. Khalyavin +3

In rhombohedral CaMn7O12, an improper ferroelectric polarization of magnitude 2870 μC m-2 is induced by an incommensurate helical magnetic structure that evolves below TN1 = 90 K.…

cond-mat.str-el2011★ 11 cited

Magnetically induced electric polarization reversal in multiferroic TbMn $_{2}$ O $_{5}$ : Terbium spin reorientation studied by resonant x-ray diffraction

R. D. Johnson, C. Mazzoli, S. R. Bland +2

In multiferroic TbMn $_{2}$ O $_{5}$ , the behavior of the terbium ions forms a crucial part of the magneto-electric coupling. The result is a magnetically induced reversal of the electric…

cond-mat.str-el2011★ 4 cited

The magnetic structures of the anisotropic inter-metallic compounds Er $_{2}$ CoGa $_{8}$ and Tm $_{2}$ CoGa $_{8}$

R. D. Johnson, T. Frawley, P. Manuel +5

Two members of the iso-structural R $_{2}$ CoGa $_{8}$ inter-metallic series, Er $_{2}$ CoGa $_{8}$ and Tm $_{2}$ CoGa $_{8}$ , have been studied by powder neutron diffraction. Antiferromagnetic orderin…

Giant improper ferroelectricity in the ferroaxial magnet CaMn7O12

Magnetically induced electric polarization reversal in multiferroic TbMn2​O5​: Terbium spin reorientation studied by resonant x-ray diffraction

The magnetic structures of the anisotropic inter-metallic compounds Er2​CoGa8​ and Tm2​CoGa8​

Magnetically induced electric polarization reversal in multiferroic TbMn $_{2}$ O $_{5}$ : Terbium spin reorientation studied by resonant x-ray diffraction

The magnetic structures of the anisotropic inter-metallic compounds Er $_{2}$ CoGa $_{8}$ and Tm $_{2}$ CoGa $_{8}$