Structural and electrical properties of La0.5Sr0.5CoO3 films on SrTiO3 and porous alpha-Al2O3 substrates

E.A.F. Span; F.J.G. Roesthuis; David H.A. Blank; Horst Rogalla

doi:10.1007/s003399900231

Structural and electrical properties of La0.5Sr0.5CoO3 films on SrTiO3 and porous alpha-Al2O3 substrates

E.A.F. Span, F.J.G. Roesthuis, David H.A. Blank, Horst Rogalla

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

2 Downloads (Pure)

Abstract

Films of La0.5Sr0.5CoO3 (LSCO) have been deposited on specially treated TiO2-terminated (001) SrTiO3 substrate surfaces and on macroporous polycrystalline !-Al2O3 substrates, having a mean pore diameter of 80 nm, by pulsed laser deposition. The films deposited on SrTiO3 are good conducting, (001) textured, and exceptionally smooth (1–2 Å for 100 nm thick films). LSCO films deposited on porous !-Al2O3 are polycrystalline and exhibit good crystallographic and electrical properties despite the large substrate roughness and the differences in lattice parameters and crystal structure between the film and the substrate. Different growth modes have been observed on the porous !-Al2O3 substrates depending on the oxygen pressure during film deposition. Films grown at an oxygen pressure of 10-1 mbar are macroporous, whereas films grown at 10-2 mbar completely cover the substrate pores. In the latter case, strain effects lead to film cracking.

Original language	Undefined
Pages (from-to)	S783-S785
Number of pages	3
Journal	Applied physics A: Materials science and processing
Volume	69
Issue number	69 Sup.
DOIs	https://doi.org/10.1007/s003399900231
Publication status	Published - 1999

Keywords

METIS-128771
IR-23972

Access to Document

10.1007/s003399900231

Cite this

@article{2ab66d3971d14b4c865ecf43b3e0d5a3,

title = "Structural and electrical properties of La0.5Sr0.5CoO3 films on SrTiO3 and porous alpha-Al2O3 substrates",

abstract = "Films of La0.5Sr0.5CoO3 (LSCO) have been deposited on specially treated TiO2-terminated (001) SrTiO3 substrate surfaces and on macroporous polycrystalline !-Al2O3 substrates, having a mean pore diameter of 80 nm, by pulsed laser deposition. The films deposited on SrTiO3 are good conducting, (001) textured, and exceptionally smooth (1–2 {\AA} for 100 nm thick films). LSCO films deposited on porous !-Al2O3 are polycrystalline and exhibit good crystallographic and electrical properties despite the large substrate roughness and the differences in lattice parameters and crystal structure between the film and the substrate. Different growth modes have been observed on the porous !-Al2O3 substrates depending on the oxygen pressure during film deposition. Films grown at an oxygen pressure of 10-1 mbar are macroporous, whereas films grown at 10-2 mbar completely cover the substrate pores. In the latter case, strain effects lead to film cracking.",

keywords = "METIS-128771, IR-23972",

author = "E.A.F. Span and F.J.G. Roesthuis and Blank, {David H.A.} and Horst Rogalla",

year = "1999",

doi = "10.1007/s003399900231",

language = "Undefined",

volume = "69",

pages = "S783--S785",

journal = "Applied physics A: Materials science and processing",

issn = "0947-8396",

publisher = "Springer",

number = "69 Sup.",

}

TY - JOUR

T1 - Structural and electrical properties of La0.5Sr0.5CoO3 films on SrTiO3 and porous alpha-Al2O3 substrates

AU - Span, E.A.F.

AU - Roesthuis, F.J.G.

AU - Blank, David H.A.

AU - Rogalla, Horst

PY - 1999

Y1 - 1999

N2 - Films of La0.5Sr0.5CoO3 (LSCO) have been deposited on specially treated TiO2-terminated (001) SrTiO3 substrate surfaces and on macroporous polycrystalline !-Al2O3 substrates, having a mean pore diameter of 80 nm, by pulsed laser deposition. The films deposited on SrTiO3 are good conducting, (001) textured, and exceptionally smooth (1–2 Å for 100 nm thick films). LSCO films deposited on porous !-Al2O3 are polycrystalline and exhibit good crystallographic and electrical properties despite the large substrate roughness and the differences in lattice parameters and crystal structure between the film and the substrate. Different growth modes have been observed on the porous !-Al2O3 substrates depending on the oxygen pressure during film deposition. Films grown at an oxygen pressure of 10-1 mbar are macroporous, whereas films grown at 10-2 mbar completely cover the substrate pores. In the latter case, strain effects lead to film cracking.

AB - Films of La0.5Sr0.5CoO3 (LSCO) have been deposited on specially treated TiO2-terminated (001) SrTiO3 substrate surfaces and on macroporous polycrystalline !-Al2O3 substrates, having a mean pore diameter of 80 nm, by pulsed laser deposition. The films deposited on SrTiO3 are good conducting, (001) textured, and exceptionally smooth (1–2 Å for 100 nm thick films). LSCO films deposited on porous !-Al2O3 are polycrystalline and exhibit good crystallographic and electrical properties despite the large substrate roughness and the differences in lattice parameters and crystal structure between the film and the substrate. Different growth modes have been observed on the porous !-Al2O3 substrates depending on the oxygen pressure during film deposition. Films grown at an oxygen pressure of 10-1 mbar are macroporous, whereas films grown at 10-2 mbar completely cover the substrate pores. In the latter case, strain effects lead to film cracking.

KW - METIS-128771

KW - IR-23972

U2 - 10.1007/s003399900231

DO - 10.1007/s003399900231

M3 - Article

SN - 0947-8396

VL - 69

SP - S783-S785

JO - Applied physics A: Materials science and processing

JF - Applied physics A: Materials science and processing

IS - 69 Sup.

ER -