Skip to main content
placeholder image

Element-specific depth profile of magnetism and stoichiometry at the La0.67Sr0.33MnO3/BiFeO3 interface

Journal Article


Download full-text (Open Access)

Abstract


  • Depth-sensitive magnetic, structural, and chemical characterization is important in the understanding and optimization of physical phenomena emerging at the interfaces of transition metal oxide heterostructures. In a simultaneous approach we have used polarized neutron and resonant x-ray reflectometry to determine the magnetic profile across atomically sharp interfaces of ferromagnetic La0.67Sr0.33MnO3/multiferroic BiFeO3 bilayers with subnanometer resolution. In particular, the x-ray resonant magnetic reflectivity measurements at the Fe and Mn resonance edges allowed us to determine the element-specific depth profile of the ferromagnetic moments in both the La0.67Sr0.33MnO3 and BiFeO3 layers. Our measurements indicate a magnetically diluted interface layer within the La0.67Sr0.33MnO3 layer, in contrast to previous observations on inversely deposited layers [P. Yu, Phys. Rev. Lett. 105, 027201 (2010)PRLTAO0031-900710.1103/PhysRevLett.105.027201]. Additional resonant x-ray reflection measurements indicate a region of altered Mn and O content at the interface, with a thickness matching that of the magnetic diluted layer, as the origin of the reduction of the magnetic moment. © 2014 American Physical Society.

UOW Authors


  •   Bertinshaw, Joel (external author)
  •   Bruck, S (external author)
  •   Lott, D (external author)
  •   Fritzsche, H (external author)
  •   Khaydukov, Y (external author)
  •   Soltwedel, O (external author)
  •   Keller, T (external author)
  •   Goering, E (external author)
  •   Audehm, P (external author)
  •   Cortie, David
  •   Hutchison, Wayne D. (external author)
  •   Ramasse, Q (external author)
  •   Arredondo, M (external author)
  •   Maran, R (external author)
  •   Nagarajan, Vinayaka (external author)
  •   Klose, Frank (external author)
  •   Ulrich, Clemens (external author)

Publication Date


  • 2014

Citation


  • Bertinshaw, J., Bruck, S., Lott, D., Fritzsche, H., Khaydukov, Y., Soltwedel, O., Keller, T., Goering, E., Audehm, P., Cortie, D. L., Hutchison, W. D., Ramasse, Q. M., Arredondo, M., Maran, R., Nagarajan, V., Klose, F. & Ulrich, C. (2014). Element-specific depth profile of magnetism and stoichiometry at the La0.67Sr0.33MnO3/BiFeO3 interface. Physical Review B: Condensed Matter and Materials Physics, 90 (4), 041113-1-041113-5.

Scopus Eid


  • 2-s2.0-84905460268

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3325&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2303

Start Page


  • 041113-1

End Page


  • 041113-5

Volume


  • 90

Issue


  • 4

Abstract


  • Depth-sensitive magnetic, structural, and chemical characterization is important in the understanding and optimization of physical phenomena emerging at the interfaces of transition metal oxide heterostructures. In a simultaneous approach we have used polarized neutron and resonant x-ray reflectometry to determine the magnetic profile across atomically sharp interfaces of ferromagnetic La0.67Sr0.33MnO3/multiferroic BiFeO3 bilayers with subnanometer resolution. In particular, the x-ray resonant magnetic reflectivity measurements at the Fe and Mn resonance edges allowed us to determine the element-specific depth profile of the ferromagnetic moments in both the La0.67Sr0.33MnO3 and BiFeO3 layers. Our measurements indicate a magnetically diluted interface layer within the La0.67Sr0.33MnO3 layer, in contrast to previous observations on inversely deposited layers [P. Yu, Phys. Rev. Lett. 105, 027201 (2010)PRLTAO0031-900710.1103/PhysRevLett.105.027201]. Additional resonant x-ray reflection measurements indicate a region of altered Mn and O content at the interface, with a thickness matching that of the magnetic diluted layer, as the origin of the reduction of the magnetic moment. © 2014 American Physical Society.

UOW Authors


  •   Bertinshaw, Joel (external author)
  •   Bruck, S (external author)
  •   Lott, D (external author)
  •   Fritzsche, H (external author)
  •   Khaydukov, Y (external author)
  •   Soltwedel, O (external author)
  •   Keller, T (external author)
  •   Goering, E (external author)
  •   Audehm, P (external author)
  •   Cortie, David
  •   Hutchison, Wayne D. (external author)
  •   Ramasse, Q (external author)
  •   Arredondo, M (external author)
  •   Maran, R (external author)
  •   Nagarajan, Vinayaka (external author)
  •   Klose, Frank (external author)
  •   Ulrich, Clemens (external author)

Publication Date


  • 2014

Citation


  • Bertinshaw, J., Bruck, S., Lott, D., Fritzsche, H., Khaydukov, Y., Soltwedel, O., Keller, T., Goering, E., Audehm, P., Cortie, D. L., Hutchison, W. D., Ramasse, Q. M., Arredondo, M., Maran, R., Nagarajan, V., Klose, F. & Ulrich, C. (2014). Element-specific depth profile of magnetism and stoichiometry at the La0.67Sr0.33MnO3/BiFeO3 interface. Physical Review B: Condensed Matter and Materials Physics, 90 (4), 041113-1-041113-5.

Scopus Eid


  • 2-s2.0-84905460268

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3325&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2303

Start Page


  • 041113-1

End Page


  • 041113-5

Volume


  • 90

Issue


  • 4