Disorder influence on the magnetic properties of La0.55Sr0.45MnO3/SrTiO3 superlattices

https://doi.org/10.1016/j.jmmm.2003.12.080Get rights and content

Abstract

The structural and physical properties of La0.55Sr0.45MnO3/SrTiO3 superlattices grown by magnetron sputtering are studied. Two deposition temperatures and different mismatched substrates and buffer layers were used. The structure was determined by refinement through X-ray diffraction pattern fitting. The results indicate 1 unit cell (u.c.) interdiffusion at the interfaces and a 1 u.c. layer thickness fluctuation, i.e. roughness. In-plane hysteresis loops show the expected ferromagnetic behavior, while the perpendicular-to-plane hysteresis loops show anomalies which could evidence magnetic domain size inhomogeneities and stress.

References (11)

  • M. Sirena

    Thin Solid Films

    (2000)
  • I. Schuller, in: P. Dhez, C. Weisbuch (Eds.), The Physics of Metallic Superlattices: An Experimental Point of View,...
  • M. Izumi

    Phys. Rev. B

    (2001)
  • Moon-Ho Jo

    Appl. Phys. Lett.

    (1998)
  • M. Sahana

    J. Appl. Phys.

    (2001)
There are more references available in the full text version of this article.
View full text