Grain boundary effects on transport in metalorganic chemical vapor deposition-grown, Ca-doped lanthanum manganites

J. J. Heremans, S. Watts, S. Wirth, X. Yu, E. S. Gillman, K. H. Dahmen, S. Von Molnár

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The transport properties of metalorganic chemical vapor deposited films of lanthanum manganite grown on various substrates are investigated. The more disordered films show a magnetoresistance that is both large and relatively temperature independent over a wide temperature range. At low magnetic fields, a linear field dependence is observed and is attributed to spin-polarized intergrain tunneling. In addition, at low fields a hysteretic dependence of resistivity on the magnetic field has been observed. This effect has been attributed to the scattering of spin-polarized carriers at the grain boundary.

Original languageEnglish
Pages (from-to)7055-7057
Number of pages3
JournalJournal of Applied Physics
Volume83
Issue number11
DOIs
Publication statusPublished - 1 Jan 1998

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Grain boundary effects on transport in metalorganic chemical vapor deposition-grown, Ca-doped lanthanum manganites'. Together they form a unique fingerprint.

  • Cite this

    Heremans, J. J., Watts, S., Wirth, S., Yu, X., Gillman, E. S., Dahmen, K. H., & Von Molnár, S. (1998). Grain boundary effects on transport in metalorganic chemical vapor deposition-grown, Ca-doped lanthanum manganites. Journal of Applied Physics, 83(11), 7055-7057. https://doi.org/10.1063/1.367548