296 citations · 1.7k across the 40 of their papers we have counts for
6 papers · 1 filter
Imitation of spin density wave order in CuNbO
N. Giles-Donovan, N. Qureshi, R. D. Johnson +4
Spin density waves, based on modulated local moments, are usually associated with metallic materials, but have recently been reported in insulators which display coupled magnetic a…
Controlling spin current polarization through non-collinear antiferromagnetism
T. Nan, C. X. Quintela, J. Irwin +20
The spin-Hall effect describes the interconversion of charge currents and spin currents, enabling highly efficient manipulation of magnetization for spintronics. Symmetry condition…
Spin-wave directional anisotropies in antiferromagnetic BaNbFeSiO
C. Stock, R. D. Johnson, N. Giles-Donovan +14
BaNbFeSiO (langasite) is structurally and magnetically single domain chiral with the magnetic helicity induced through competing symmetric exchange interac…
Observation of magnetic vortex pairs at room temperature in a planar α-Fe2O3/Co heterostructure
F. P. Chmiel, N. Waterfield Price, R. D. Johnson +8
Vortices are among the simplest topological structures, and occur whenever a flow field `whirls' around a one-dimensional core. They are ubiquitous to many branches of physics, fro…
Polarization memory in the nonpolar magnetic ground state of multiferroic CuFeO2
J. Beilsten-Edmands, S. J. Magorrian, F. R. Foronda +3
We investigate polarization memory effects in single-crystal CuFeO2, which has a magnetically-induced ferroelectric phase at low temperatures and applied B fields between 7.5 and 1…
First-principles study of multiferroic RbFe(MoO)
Kun Cao, R. D. Johnson, Feliciano Giustino +3
We have investigated the magnetic structure and ferroelectricity in RbFe(MoO) via first-principles calculations. Phenomenological analyses have shown that ferroelectricity…