Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4

Lancaster, T.; Giblin, S.R.; Allodi, G.; Bordignon, S.; Mazzani, M.; De Renzi, R.; Freeman, P.G.; Baker, P.J.; Pratt, F.L.; Babkevich, P.; Blundell, S.J.; Boothroyd, A.T.; Moller, J.S.; Prabhakaran, D.

doi:10.1103/physrevb.89.020405

Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4

Lancaster, T.; Giblin, S.R.; Allodi, G.; Bordignon, S.; Mazzani, M.; De Renzi, R.; Freeman, P.G.; Baker, P.J.; Pratt, F.L.; Babkevich, P.; Blundell, S.J.; Boothroyd, A.T.; Moller, J.S.; Prabhakaran, D.

Authors

Professor Tom Lancaster tom.lancaster@durham.ac.uk
Professor

S.R. Giblin

G. Allodi

S. Bordignon

M. Mazzani

R. De Renzi

P.G. Freeman

P.J. Baker

F.L. Pratt

P. Babkevich

S.J. Blundell

A.T. Boothroyd

J.S. Moller

D. Prabhakaran

Abstract

We investigate the magnetic ordering and dynamics of the stripe phase of La 5/3 Sr 1/3 CoO 4 , 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.

Citation

Lancaster, T., Giblin, S., Allodi, G., Bordignon, S., Mazzani, M., De Renzi, R., …Prabhakaran, D. (2014). Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4. Physical review B, 89(2), Article 020405(R). https://doi.org/10.1103/physrevb.89.020405

Journal Article Type	Article
Acceptance Date	Dec 18, 2013
Online Publication Date	Jan 15, 2014
Publication Date	Jan 15, 2014
Deposit Date	May 2, 2014
Publicly Available Date	May 13, 2014
Journal	Physical Review B
Print ISSN	1098-0121
Electronic ISSN	1550-235X
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	89
Issue	2
Article Number	020405(R)
DOI	https://doi.org/10.1103/physrevb.89.020405

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Copyright Statement
Reprinted with permission from the American Physical Society: T. Lancaster, S. R. Giblin, G. Allodi, S. Bordignon, M. Mazzani, R. De Renzi, P. G. Freeman, P. J. Baker, F. L. Pratt, P. Babkevich, S. J. Blundell, A. T. Boothroyd, J. S. Möller, and D. Prabhakaran, Physical Review B, 89, 020405(R), 2014 © 2014 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.