Andrew Boothroyd: Publications

Textbook

Principles of Neutron Scattering from Condensed Matter

Published by 91̽�� University Press in July 2020

Direct evidence for charge stripes in a layered cobalt oxide

(2016)

Authors:

P Babkevich, PG Freeman, M Enderle, D Prabhakaran, AT Boothroyd

Commensurate lattice distortion in the layered titanium oxypnictides Na$_{2}$Ti$_{2}Pn_{2}$O ($Pn =$ As, Sb) determined by X-ray diffraction

(2016)

Authors:

NR Davies, RD Johnson, AJ Princep, LA Gannon, J-Z Ma, T Qian, P Richard, H Li, H Nowell, PJ Baker, YG Shi, H Ding, J Luo, YF Guo, AT Boothroyd

All-in all-out magnetic order and propagating spin-waves in Sm2Ir2O7

(2016)

Authors:

C Donnerer, MC Rahn, M Moretti Sala, JG Vale, D Pincini, J Strempfer, M Krisch, D Prabhakaran, AT Boothroyd, DF McMorrow

Magnetic phase diagram of La2-xSrxCoO4 revised using muon-spin relaxation

PHYSICAL REVIEW B 93:14 (2016) ARTN 140406

Authors:

RC Williams, F Xiao, T Lancaster, R De Renzi, G Allodi, S Bordignon, PG Freeman, FL Pratt, SR Giblin, JS Moeller, SJ Blundell, AT Boothroyd, D Prabhakaran

Magnetic phase diagram of La2−xSrxCoO4 revised using muon-spin relaxation

Physical Review B - Condensed Matter and Materials Physics American Physical Society 93:14 (2016)

Authors:

RC Williams, F Xiao, T Lancaster, R De Renzi, G Allodi, S Bordignon, PG Freeman, FL Pratt, JS Moeller, SJ Blundell, Andrew Boothroyd, D Prabhakaran

Abstract:

We report the results of a muon-spin relaxation ( μ SR ) investigation of La 2 − x Sr x CoO 4 , an antiferromagnetic insulating series which has been shown to 91̽�� charge ordered and magnetic stripe phases and an hourglass magnetic excitation spectrum. We present a revised magnetic phase diagram, which shows that the suppression of the magnetic ordering temperature is highly sensitive to small concentrations of holes. Distinct behavior within an intermediate x range ( 0.2 ≤ x ≲ 0.6 ) suggests that the putative stripe ordered phase extends to lower x than previously thought. Further charge doping ( 0.67 ≤ x ≤ 0.9 ) prevents magnetic ordering for T ≳ 1.5 K .

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