Andrew Boothroyd: Publications

Textbook

Principles of Neutron Scattering from Condensed Matter

Published by Oxford University Press in July 2020

28pCE-8 Metal-insulator transition in 5d double perovskite Pb_2CaOsO_6

(2014) 631

Authors:

Hai L Feng, Yanfeng Guo, Andrew J Princep, Jun Li, Masahiro Nagao, Yoshitaka Matsushita, Yoshihiro Tsujimoto, Clastin I Sathish, Andrew T Boothroyd, Kazunari Yamaura

Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator la 5 / 3 Sr 1 / 3 CoO 4

Physical Review B - Condensed Matter and Materials Physics 89:2 (2014)

Authors:

T Lancaster, SR Giblin, G Allodi, S Bordignon, M Mazzani, R De Renzi, PG Freeman, PJ Baker, FL Pratt, P Babkevich, SJ Blundell, AT Boothroyd, JS Möller, D Prabhakaran

Abstract:

We investigate the magnetic ordering and dynamics of the stripe phase of La5/3Sr1/3CoO4, a material shown to have an hourglass magnetic excitation spectrum. A combination of muon-spin relaxation, nuclear magnetic resonance, and magnetic susceptibility measurements strongly suggest that the physics is determined by a partially disordered configuration of charge and spin stripes whose frustrated magnetic degrees of freedom are dynamic at high temperature and which undergo an ordering transition around 35 K with coexisting dynamics that freeze out in a glassy manner as the temperature is further reduced. © 2014 American Physical Society.

13th Oxford School on Neutron Scattering

Neutron News Taylor & Francis 25:1 (2014) 4-4

Authors:

Victoria Garcia Sakai, Ross Stewart, Luke Clifton, Sean Langridge, Andrew Boothroyd

Crystal field splitting in Sr_n+1Ir_nO_3n+1 (n=1,2) iridates probed by x-ray Raman spectroscopy

PHYSICAL REVIEW B 90:8 (2014) ARTN 085126

Authors:

M Moretti Sala, M Rossi, A Al-Zein, S Boseggia, EC Hunter, RS Perry, D Prabhakaran, AT Boothroyd, NB Brookes, DF McMorrow, G Monaco, M Krisch

Circularly polarized x-ray scattering investigation of spin-lattice coupling in TbMnO3 in crossed electric and magnetic fields

Physical Review B - Condensed Matter and Materials Physics 88:21 (2013)

Authors:

HC Walker, F Fabrizi, L Paolasini, F De Bergevin, D Prabhakaran, AT Boothroyd, DF McMorrow

Abstract:

We present a study of the magnetic and crystallographic structure of TbMnO3 in the presence of crossed electric and magnetic fields using circularly polarized x-ray nonresonant scattering. A comprehensive account is presented of the scattering theory and data analysis methods used in our earlier studies, and in addition we present interesting high magnetic field data and its analysis. We discuss in detail how polarization analysis was used to reveal structural information, including the arrangement of Tb moments which we proposed for H=0 T, and how the diffraction data for HHC as for H

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