Upper critical field of NaFe1−xCoxAs superconductors

Physical Review B American Physical Society (APS) 89:5 (2014) 054502

Authors:

S Ghannadzadeh, JD Wright, FR Foronda, SJ Blundell, SJ Clarke, PA Goddard

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.

A first stab at relativistic quantum mechanics

Chapter in QUANTUM FIELD THEORY FOR THE GIFTED AMATEUR, (2014) 59-63

Authors:

Tom Lancaster, Stephen J Blundell

A rough guide to quantum electrodynamics

Chapter in QUANTUM FIELD THEORY FOR THE GIFTED AMATEUR, (2014) 348-354

Authors:

Tom Lancaster, Stephen J Blundell

Broken symmetry

Chapter in QUANTUM FIELD THEORY FOR THE GIFTED AMATEUR, (2014) 237-246

Authors:

Tom Lancaster, Stephen J Blundell