Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice

Fitzsimmons, Michael R.; Jia, Quanxi X.; Singh, Surendra; Chen, A. P.; Xiong, J.

doi:10.1103/PhysRevB.92.224405

Title: Field-dependent magnetization of BiFeO₃ in ultrathin La_0.7Sr_0.3MnO₃/BiFeO₃ superlattice

Journal Article · Wed Dec 02 00:00:00 EST 2015 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.92.224405· OSTI ID:1235821

Fitzsimmons, Michael R. ^[1]; Jia, Quanxi X. ^[2]; Singh, Surendra ^[3]; Chen, A. P. ^[2]; Xiong, J. ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Bhabha Atomic Research Centre, Mumbai (India)

Here, we report the observation of field-dependent magnetization of BiFeO₃ (BFO) in an ultrathin BFO/La_0.7Sr_0.3MnO₃ (LSMO) superlattice using polarized neutron reflectivity (PNR). Our PNR results indicate parallel alignment of magnetization across BFO/LSMO interfaces. The study showed an increase in average magnetization of the BFO layer on increasing applied magnetic field at 10 K, similar to the ferromagnetic nature of LSMO. We obtained a saturation magnetization of 110 ± 15kA/m(~0.8μ_B/Fe) for an ultrathin BFO layer (~2 unit cells) sandwiched between ultrathin LSMO layers (~2 unit cells), which is much higher than the canted moment (0.03μ_B/Fe) in the bulk BFO.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725; AC52-06NA25396

OSTI ID:: 1235821

Alternate ID(s):: OSTI ID: 1227752; OSTI ID: 1321773; OSTI ID: 1332075

Report Number(s):: LA-UR-15-29159; PRBMDO

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 22; ISSN 1098-0121

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 13 works

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Structural investigation of (111) oriented (BiFeO ₃ ) _(1- _x _)Λ /(LaFeO ₃ ) _x _Λ superlattices by X-ray diffraction and Raman spectroscopy Belhadi, J.; Yousfi, S.; Bouyanfif, H. Journal of Applied Physics, Vol. 123, Issue 15 https://doi.org/10.1063/1.5032085	journal	April 2018
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Title: Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice

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Title: Field-dependent magnetization of BiFeO₃ in ultrathin La_0.7Sr_0.3MnO₃/BiFeO₃ superlattice