Field-dependent magnetization of BiFeO3 in ultrathin La0.7Sr0.3MnO3/BiFeO3 superlattice
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- 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/La0.7Sr0.3MnO3 (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(~0.8μB/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 (0.03μB/Fe) in the bulk BFO.
- 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
Cited by: 13 works
Citation information provided by
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