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

40 papers

cond-mat.str-el2023★ 2 cited

Magnetic inhomogeneities in the quadruple perovskite manganite [Y $_{2 - x}$ Mn $_{x}$ ]MnMnMn $_{4}$ O $_{12}$

A. M. Vibhakar, D. D. Khalyavin, P. Manuel +5

A combination of competing exchange interactions and substitutional disorder gives rise to magnetic inhomogeneities in the [Y $_{2 - x}$ Mn $_{x}$ ]MnMnMn $_{4}$ O $_{12}$ $x = 0.23$ and $x = 0…

cond-mat.str-el2023★ 4 cited

Neutron scattering sum rules, symmetric exchanges, and helicoidal magnetism in MnSb $_{2}$ O $_{6}$

E. Chan, H. Lane, J. Pásztorová +9

MnSb $_{2}$ O $_{6}$ is based on the noncentrosymmetric $P 321$ space group with magnetic Mn $^{2 +}$ ( $S = 5/2$ , $L \approx 0$ ) spins ordering below $T_{N} = 12$ K in a helicoidal…

cond-mat.str-el2022★ 9 cited

Strain control of a bandwidth-driven spin reorientation in Ca $_{3}$ Ru $_{2}$ O $_{7}$

C. D. Dashwood, A. H. Walker, M. P. Kwasigroch +14

The layered-ruthenate family of materials possess an intricate interplay of structural, electronic and magnetic degrees of freedom that yields a plethora of delicately balanced gro…

cond-mat.str-el2022

The magnetic structure and field dependence of the cycloid phase mediating the spin reorientation transition in Ca $_{3}$ Ru $_{2}$ O $_{7}$

Q. Faure, C. D. Dashwood, C. V. Colin +6

We report a comprehensive experimental investigation of the magnetic structure of the cycloidal phase in Ca $_{3}$ Ru $_{2}$ O $_{7}$ , which mediates the spin reorientation transition, and es…

cond-mat.str-el2022★ 7 cited

Neutron diffraction in MnSb2O6: Magnetic and structural domains in a helicoidal polar magnet with coupled chiralities

E. Chan, J. Pásztorová, R. D. Johnson +10

MnSb $_{2}$ O $_{6}$ is based on the structural chiral $P$ 321 space group #150 where the magnetic Mn $^{2 +}$ moments ( $S = 5/2$ , $L \approx 0$ ) order antiferromagnetically at $T_\mathrm{N…

cond-mat.str-el2021★ 5 cited

Competing electronic instabilities in the quadruple perovskite manganite PbMn $_{7}$ O $_{12}$

R. D. Johnson, D. D. Khalyavin, P. Manuel +1

Structural behaviour of PbMn $_{7}$ O $_{12}$ has been studied by high resolution synchrotron X-ray powder diffraction. This material belongs to a family of quadruple perovskite manga…

Magnetic inhomogeneities in the quadruple perovskite manganite [Y2−x​Mnx​]MnMnMn4​O12​

Neutron scattering sum rules, symmetric exchanges, and helicoidal magnetism in MnSb2​O6​

Strain control of a bandwidth-driven spin reorientation in Ca3​Ru2​O7​

The magnetic structure and field dependence of the cycloid phase mediating the spin reorientation transition in Ca3​Ru2​O7​