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Muon-spin relaxation study of the double perovskite insulators Sr2 BOsO6 (B  =  Fe, Y, ln).

Williams, R.C and Xiao, F and Thomas, I.O and Clark, S.J and Lancaster, T and Cornish, G. A. and Blundell, S.J. and Hayes, W and Paul, A. K. and Felser, C and Jansen, M (2016) 'Muon-spin relaxation study of the double perovskite insulators Sr2 BOsO6 (B  =  Fe, Y, ln).', Journal of physics : condensed matter., 28 (7). 076001.

Abstract

We present the results of zero-field muon-spin relaxation measurements made on the double perovskite insulators Sr2BOsO6 (B = Fe, Y, In). Spontaneous muon-spin precession indicative of quasistatic long range magnetic ordering is observed in Sr2FeOsO6 within the AF1 antiferromagnetic phase for temperatures below TN = ± 135 2 K. Upon cooling below T2 ≈ 67 K the oscillations cease to be resolvable owing to the coexistence of the AF1 and AF2 phases, which leads to a broader range of internal magnetic fields. Using density functional calculations we identify a candidate muon stopping site within the unit cell, which dipole field simulations show to be consistent with the proposed magnetic structure. The possibility of incommensurate magnetic ordering is discussed for temperatures below TN = 53 K and 25 K for Sr2YOsO6 and Sr2InOsO6, respectively.

Item Type:Article
Additional Information:See arXiv: http://arxiv.org/abs/1512.04410
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1088/0953-8984/28/7/076001
Publisher statement:This is an author-created, un-copyedited version of an article published in Journal of physics : condensed matter. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/0953-8984/28/7/076001
Date accepted:06 January 2016
Date deposited:08 April 2016
Date of first online publication:25 January 2016
Date first made open access:25 January 2017

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