Professor Paolo G. Radaelli OSI: Publications

Prof Radaelli recognised with an MPLS "Excellent Supervisor" Award

Prof Radaelli is one of the 5 Oxford Physicists recognised in the inaugural "Excellence in Research Supervision" award

Read the story at this link

Antiferromagnetic half-skyrmions and bimerons at room temperature

University of Oxford (2021)

Abstract:

The datasets included herein contain experimental results (X-ray absorption, dichroic photoemission electron microscopy, diffraction, magnetometry etc.) and related analysis for the investigation of antiferromagnetic topological textures. The processes used in the obtaining, reducing and analysing the datasets can be found in the Methods and Supplementary Information sections of the published manuscript.

Author Correction: Polarizing an antiferromagnet by optical engineering of the crystal field

Nature Physics Springer Nature 16:12 (2020) 1238-1238

Authors:

Ankit S Disa, Michael Fechner, Tobia F Nova, Biaolong Liu, Michael Först, Dharmalingam Prabhakaran, Paolo G Radaelli, Andrea Cavalleri

Controlling spin current polarization through non-collinear antiferromagnetism

Nature Communications Springer Nature 11:1 (2020) 4671

Authors:

T Nan, CX Quintela, J Irwin, G Gurung, DF Shao, J Gibbons, N Campbell, K Song, S-Y Choi, L Guo, RD Johnson, P Manuel, RV Chopdekar, I Hallsteinsen, T Tybell, PJ Ryan, J-W Kim, Y Choi, PG Radaelli, DC Ralph, EY Tsymbal, MS Rzchowski, CB Eom

Emergent helical texture of electric dipoles

(2020)

Authors:

Dmitry D Khalyavin, Roger D Johnson, Fabio Orlandi, Paolo G Radaelli, Pascal Manuel, Alexei A Belik

Absolute crystal and magnetic chiralities in the langasite compound Ba3NbFe3Si2O14 determined by polarized neutron and x-ray scattering

Physical Review B American Physical Society 102:5 (2020) 54417

Authors:

N Qureshi, A Bombardi, S Picozzi, P Barone, E Lelièvre-Berna, X Xu, C Stock, Df McMorrow, Alexander Hearmon, Federica Fabrizi, Paolo Radaelli, S-W Cheong, Lc Chapon

Abstract:

We present a combined polarized neutron and x-ray scattering study on two enantiopure langasite single crystals aimed at the determination of their absolute structural and magnetic chiralities and the coupling between them. Our respective data sets unambiguously reveal two samples of opposite structural chirality, where the magnetic handedness is pinned by the structural one. Simple energy considerations of the magnetic exchange and single-ion anisotropy parameters reveal that it is not the Dzyaloshinskii-Moriya interaction but the local single-ion anisotropy on a triangular plaquette which plays a key role in stabilizing one of the two magnetic helices.

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