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The decisive role of magnetic anisotropy in honeycomb layered Li3Ni2SbO6 and Na3Ni2SbO6

The decisive role of magnetic anisotropy even in systems with small anisotropy is illustrated for the honeycomb-layered antiferromagnets A3Ni2SbO6 with A=Li and Na. Both systems evolve long range magnetic order below TN=14 and 16.5K, respectively. The magnetic phase diagrams obtained from static mag...

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Bibliographic Details
Main Authors: Werner, Johannes (Author) , Hergett, Waldemar (Author) , Park, Jaena (Author) , Koo, Changhyun (Author) , Klingeler, Rüdiger (Author)
Format: Article (Journal)
Language:English
Published: 19 February 2019
In: Journal of magnetism and magnetic materials
Year: 2019, Volume: 481, Pages: 100-103
ISSN:1873-4766
DOI:10.1016/j.jmmm.2019.02.054
Online Access:Verlag, Volltext: https://doi.org/10.1016/j.jmmm.2019.02.054
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0304885318323345
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Author Notes:J. Werner, W. Hergett, J. Park, C. Koo, E.A. Zvereva, A.N. Vasiliev, R. Klingeler
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Summary:The decisive role of magnetic anisotropy even in systems with small anisotropy is illustrated for the honeycomb-layered antiferromagnets A3Ni2SbO6 with A=Li and Na. Both systems evolve long range magnetic order below TN=14 and 16.5K, respectively. The magnetic phase diagrams obtained from static magnetisation studies up to 15T imply competing antiferromagnetic phases and a tricritical point at TN. The phase boundaries are visible in the dynamic response of the antiferromagnetic resonance modes, too, which investigation by means of high frequency/high field electron spin resonance enables precise determination of magnetic anisotropy. The anisotropy gap amounts to Δ=360±2GHz in Na3Ni2SbO6 while in Li3Ni2SbO6 orthorhombicity is associated with Δ=198±4 and 218±4GHz. Above TN, the data imply short-range antiferromagnetic order up to at least 80K. The data suggest a crucial role of anisotropy for selecting the actual spin structure at B=0T.
Item Description:Gesehen am 04.04.2019
Im Titel sind die Zahlen "3", "2" und "6" tiefgestellt
Physical Description:Online Resource
ISSN:1873-4766
DOI:10.1016/j.jmmm.2019.02.054

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