Roger D. Johnson

activity

20112026

most citedA new spin-anisotropic harmonic honeycomb iridate

267 citations · 1.1k across the 17 of their papers we have counts for

collaborators

Showing 2015Show all

3 papers · 1 filter

cond-mat.mtrl-sci2015★ 209 cited

Non-ferroelectric nature of the conductance hysteresis in CH3NH3PbI3 perovskite-based photovoltaic devices

J. Beilsten-Edmands, G. E. Eperon, R. D. Johnson +2

We present measurements of conductance hysteresis on CH3NH3PbI3 perovskite thin films, performed using the double-wave method, in order to investigate the possibility of a ferroele…

cond-mat.mtrl-sci2015

Magnetically-induced ferroelectricity in the (ND4)2[FeCl5(D2O)] molecular compound

Jose Alberto Rodriguez-Velamazan, Oscar Fabelo, Angel Millan +3

The number of magnetoelectric multiferroic materials reported to date is scarce, as magnetic structures that break inversion symmetry and induce an improper ferroelectric polarizat…

cond-mat.mtrl-sci2015★ 15 cited

First-principles study of structurally modulated multiferroic CaMn $_{7}$ O $_{12}$

Kun Cao, Roger D. Johnson, Natasha Perks +2

We study the electronic and magnetic structures of multiferroic CaMn $_{7}$ O $_{12}$ by first-principle calculations, based on the experimentally determined modulated crystal structure…

Non-ferroelectric nature of the conductance hysteresis in CH3NH3PbI3 perovskite-based photovoltaic devices

Magnetically-induced ferroelectricity in the (ND4)2[FeCl5(D2O)] molecular compound

First-principles study of structurally modulated multiferroic CaMn7​O12​

First-principles study of structurally modulated multiferroic CaMn $_{7}$ O $_{12}$