Self-assembled nanocrystalline epitaxial manganite films on SrTiO₃/Si heterostructures

Authors

D. Hunter, Center for Materials Research, Norfolk State University, Norfolk, Virginia
J.B. Dadson, Center for Materials Research, Norfolk State University, Norfolk, Virginia
K. Zhang, Center for Materials Research, Norfolk State University, Norfolk, Virginia
B. Lasley, Center for Materials Research, Norfolk State University, Norfolk, Virginia
K. Lord, Center for Materials Research, Norfolk State University, Norfolk, Virginia
T.M. Williams, Center for Materials Research, Norfolk State University, Norfolk, Virginia
Rakhim R. Rakhimov, Center for Materials Research, Norfolk State UniversityFollow
Aswini K. Pradhan, Center for Materials Research, Norfolk State UniversityFollow
Jun Zhang, University of Nebraska - LincolnFollow
David J. Sellmyer, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

4-15-2006

Comments

Published by American Institute of Physics. J. Applied Physics 99, 08Q307 (2006). ©2006 American Institute of Physics. Permission to use. http://jap.aip.org/jap/.

Abstract

We report the growth and magnetic characterizations of La_0.7Ba_0.3MnO₃ and La_0.7Sr_0.3MnO₃ films on SrTiO₃-buffered Si (100) and Si (111) substrates by pulsed-laser deposition. The structural studies show the epitaxial nature of the films. The microscopic studies show that the films consist of nanocrystalline particles. All films display sharp magnetic and electrical transitions associated with the colossal magnetoresistance behavior at and above room temperature, illustrating the superior quality of the films.