R. Ewings

activity

20062026

most citedHORACE: software for the analysis of data from single crystal spectroscopy experiments at time-of-flight neutron instruments

253 citations · 1.6k across the 43 of their papers we have counts for

collaborators

43 papers

cond-mat.str-el2026

Quasi-one-dimensional spin excitations in the iron pnictide NaFe $_{0.53}$ Cu $_{0.47}$ As

Yifan Wang, David W. Tam, Weiyi Wang +8

Spectroscopic measurements in model one-dimensional (1D) correlated systems offer insights for understanding their two-dimensional counterparts, which include the cuprate and iron…

cond-mat.str-el2025

Magnetic excitations and exchange parameters of a nickel chain compound PbMn $_{2}$ Ni $_{6}$ Te $_{3}$ O $_{18}$ : Neutron scattering and density functional theory studies

S. Uthayakumar, D. T. Adroja, Amit Pokhriyal +10

We have investigated the quasi-one dimensional Ni-chain compound PbMn $_{2}$ Ni $_{6}$ Te $_{2}$ O $_{18}$ using theoretical DFT calculations, inelastic neutron scattering and optical spectrosc…

cond-mat.str-el2024

Entangled orbital, spin, and ferroelectric orders in $p$ -electron magnet CsO $_{2}$

Ryota Ono, Ravi Kaushik, Sergey Artyukhin +3

Alkali superoxides differ from conventional transition metal magnets, exhibit magnetism from partially occupied oxygen molecular $π^{*}$ -orbitals. Among them, CsO $_{2}$ stands out for…

cond-mat.mtrl-sci2024★ 1 cited

Low energy phonons in single crystal ZrW $_{2}$ O $_{8}$

R. A. Ewings, A. I. Duff, K. Refson +2

ZrW $_{2}$ O $_{8}$ is the prototypical example of a material exhibiting negative thermal expansion (NTE). It is now widely accepted that in ZrW $_{2}$ O $_{8}$ , and in many other framew…

cond-mat.str-el2023★ 8 cited

Spin-orbital correlations from complex orbital order in MgV $_{2}$ O $_{4}$

H. Lane, P. M. Sarte, K. Guratinder +12

MgV $_{2}$ O $_{4}$ is a spinel based on magnetic V $^{3 +}$ ions which host both spin ( $S = 1$ ) and orbital ( $l_{e f f} = 1$ ) moments. Owing to the underlying pyrochlore coordination of the…

cond-mat.str-el2023★ 2 cited

The crystal and magnetic structure of cesium superoxide

R. A. Ewings, M. Reehuis, F. Orlandi +7

CsO2 is a member of the family of alkali superoxides (formula AO2 with A= Na, K, Rb and Cs) that exhibit magnetic behavior arising from open $p$ -shell electrons residing on O2- mol…

Quasi-one-dimensional spin excitations in the iron pnictide NaFe0.53​Cu0.47​As

Magnetic excitations and exchange parameters of a nickel chain compound PbMn2​Ni6​Te3​O18​: Neutron scattering and density functional theory studies

Entangled orbital, spin, and ferroelectric orders in p-electron magnet CsO2​

Low energy phonons in single crystal ZrW2​O8​