Molecular beam epitaxy of single crystal colossal magneto-resistive material

J. N. Eckstein, I. Bozovic, M. Rzchowski, J. O'Donnell, B. Hinaus, M. Onellion

Research output: Contribution to journalConference articlepeer-review

Abstract

We have grown films of (LaSr)MnO3 (LSMO) and (LaCa)MnO3 (LCMO) using atomic layer-by-layer molecular beam epitaxy (ALL-MBE). Depending on growth conditions, substrate lattice constant and the exact cation stoichiometry, the films are either pseuodomorphic or strain relaxed. The pseudomorphic films show atomically flat surfaces, with a unit cell terrace structure that is a replica of that observed on the slightly vicinal substrates, while the strain relaxed films show bumpy surfaces correlated with a dislocation network. All films show tetragonal structure and exhibit anisotropic magnetoresistance, with a low field response, (1/R)(dR/dH) as large as 5 T-1.

Original languageEnglish (US)
Pages (from-to)467-471
Number of pages5
JournalMaterials Research Society Symposium - Proceedings
Volume401
StatePublished - Jan 1 1996
Externally publishedYes
EventProceedings of the 1995 MRS Fall Symposium - Boston, MA, USA
Duration: Nov 27 1995Nov 30 1995

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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