Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films

E. S. Gilman, M. Li, K. H. Dahmen

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The crystallinity of La1-xCaxMnO3 (LCMO) thin films can be controlled by preparing the films on substrates with different lattice parameters. Closely lattice matched LCMO thin films on LaAlO3 (LAO) substrates exhibit a high degree of crystallinity and have magnetoresistance (MR) and MR ratio [R(H=0 T)·R(H=6 T)]/R(H=6 T) that is sharply peaked in the vicinity of the metal-insulator transition temperature (TMI). Notably, films grown on LAO(011) have TMI shifted up in temperature ∼20 K higher than the same films on LAO(011) substrates. LCMO films on Al2O3 and Y-ZrO2, that are not as closely lattice matched, have a lower degree of crystallinity, less sharply peaked MR and a nearly constant MR ratio below TMI over a broad temperature range.

Original languageEnglish
Pages (from-to)6217-6220
Number of pages4
JournalJournal of Applied Physics
Volume84
Issue number11
Publication statusPublished - 1 Dec 1998
Externally publishedYes

Fingerprint

crystallinity
thin films
lattice parameters
transition temperature
insulators
temperature
metals

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Gilman, E. S., Li, M., & Dahmen, K. H. (1998). Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films. Journal of Applied Physics, 84(11), 6217-6220.

Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films. / Gilman, E. S.; Li, M.; Dahmen, K. H.

In: Journal of Applied Physics, Vol. 84, No. 11, 01.12.1998, p. 6217-6220.

Research output: Contribution to journalArticle

Gilman, ES, Li, M & Dahmen, KH 1998, 'Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films', Journal of Applied Physics, vol. 84, no. 11, pp. 6217-6220.
Gilman ES, Li M, Dahmen KH. Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films. Journal of Applied Physics. 1998 Dec 1;84(11):6217-6220.
Gilman, E. S. ; Li, M. ; Dahmen, K. H. / Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films. In: Journal of Applied Physics. 1998 ; Vol. 84, No. 11. pp. 6217-6220.
@article{a059b139b4a24e9d8033434b85d5a1d7,
title = "Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films",
abstract = "The crystallinity of La1-xCaxMnO3 (LCMO) thin films can be controlled by preparing the films on substrates with different lattice parameters. Closely lattice matched LCMO thin films on LaAlO3 (LAO) substrates exhibit a high degree of crystallinity and have magnetoresistance (MR) and MR ratio [R(H=0 T)·R(H=6 T)]/R(H=6 T) that is sharply peaked in the vicinity of the metal-insulator transition temperature (TMI). Notably, films grown on LAO(011) have TMI shifted up in temperature ∼20 K higher than the same films on LAO(011) substrates. LCMO films on Al2O3 and Y-ZrO2, that are not as closely lattice matched, have a lower degree of crystallinity, less sharply peaked MR and a nearly constant MR ratio below TMI over a broad temperature range.",
author = "Gilman, {E. S.} and M. Li and Dahmen, {K. H.}",
year = "1998",
month = "12",
day = "1",
language = "English",
volume = "84",
pages = "6217--6220",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "11",

}

TY - JOUR

T1 - Crystallinity and magnetoresistance in La1-xCaxMnO3 thin films

AU - Gilman, E. S.

AU - Li, M.

AU - Dahmen, K. H.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The crystallinity of La1-xCaxMnO3 (LCMO) thin films can be controlled by preparing the films on substrates with different lattice parameters. Closely lattice matched LCMO thin films on LaAlO3 (LAO) substrates exhibit a high degree of crystallinity and have magnetoresistance (MR) and MR ratio [R(H=0 T)·R(H=6 T)]/R(H=6 T) that is sharply peaked in the vicinity of the metal-insulator transition temperature (TMI). Notably, films grown on LAO(011) have TMI shifted up in temperature ∼20 K higher than the same films on LAO(011) substrates. LCMO films on Al2O3 and Y-ZrO2, that are not as closely lattice matched, have a lower degree of crystallinity, less sharply peaked MR and a nearly constant MR ratio below TMI over a broad temperature range.

AB - The crystallinity of La1-xCaxMnO3 (LCMO) thin films can be controlled by preparing the films on substrates with different lattice parameters. Closely lattice matched LCMO thin films on LaAlO3 (LAO) substrates exhibit a high degree of crystallinity and have magnetoresistance (MR) and MR ratio [R(H=0 T)·R(H=6 T)]/R(H=6 T) that is sharply peaked in the vicinity of the metal-insulator transition temperature (TMI). Notably, films grown on LAO(011) have TMI shifted up in temperature ∼20 K higher than the same films on LAO(011) substrates. LCMO films on Al2O3 and Y-ZrO2, that are not as closely lattice matched, have a lower degree of crystallinity, less sharply peaked MR and a nearly constant MR ratio below TMI over a broad temperature range.

UR - http://www.scopus.com/inward/record.url?scp=0001552151&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001552151&partnerID=8YFLogxK

M3 - Article

VL - 84

SP - 6217

EP - 6220

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 11

ER -