Interfacial magnetic coupling in ultrathin all-manganite La0.7Sr0.3MnO3-TbMnO3 superlattices

Y. F. Tian, O. I. Lebedev, V. V. Roddatis, W. N. Lin, Junfeng Ding, S. J. Hu, S. S. Yan, Tao Wu

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Abstract

We report the growth and magnetic properties of all-manganite superlattices composed of ultrathin double-exchange ferromagnetic La0.7Sr0.3MnO3 and noncollinear multiferroic TbMnO3 layers. Spontaneous magnetization and hysteresis loops are observed in such superlattices with individual La0.7Sr0.3MnO3 layers as thin as two unit cells, which are accompanied by pronounced exchange bias and enhanced coercivity. Our results indicate substantial interfacial magnetic coupling between spin sublattices in such superlattices, providing a powerful approach towards tailoring the properties of artificial magnetic heterostructures.
Original languageEnglish (US)
Pages (from-to)152404
JournalApplied Physics Letters
Volume104
Issue number15
DOIs
StatePublished - Apr 14 2014

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