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Magnetic phase diagram of La2-xSrxCoO 4 revised using muon-spin relaxation

Williams, R.C.; Xiao, F.; Lancaster, T.; De Renzi, R.; Allodi, G.; Bordignon, S.; Freeman, P.G.; Pratt, F.L.; Giblin, S.R.; Möller, J.S.; Blundell, S.J.; Boothroyd, A.T.; Prabhakaran, D.

Magnetic phase diagram of La2-xSrxCoO 4 revised using muon-spin relaxation Thumbnail


Authors

R.C. Williams

F. Xiao

R. De Renzi

G. Allodi

S. Bordignon

P.G. Freeman

F.L. Pratt

S.R. Giblin

J.S. Möller

S.J. Blundell

A.T. Boothroyd

D. Prabhakaran



Abstract

We report the results of a muon-spin relaxation (μSR) investigation of La2−xSrxCoO4, an antiferromagnetic insulating series which has been shown to support 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≳1.5K.

Citation

Williams, R., Xiao, F., Lancaster, T., De Renzi, R., Allodi, G., Bordignon, S., …Prabhakaran, D. (2016). Magnetic phase diagram of La2-xSrxCoO 4 revised using muon-spin relaxation. Physical Review B, 93(14), Article 140406(R). https://doi.org/10.1103/physrevb.93.140406

Journal Article Type Article
Acceptance Date Mar 30, 2016
Online Publication Date Apr 14, 2016
Publication Date Apr 14, 2016
Deposit Date Apr 15, 2016
Publicly Available Date Mar 28, 2024
Journal Physical Review B
Print ISSN 2469-9950
Electronic ISSN 2469-9969
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 93
Issue 14
Article Number 140406(R)
DOI https://doi.org/10.1103/physrevb.93.140406
Related Public URLs http://arxiv.org/abs/1510.06244

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Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review B 93, 140406(R) © 2016 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.






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