Photocarrier injection to perovskite manganites

T. Muramatsu; Y. Muraoka; T. Yamauchi; J. Yamaura; Z. Hiroi

doi:10.1016/j.jmmm.2003.12.121

Photocarrier injection to perovskite manganites

T. Muramatsu, Y. Muraoka, T. Yamauchi, J. Yamaura, Z. Hiroi

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

10 Citations (Scopus)

Abstract

We have fabricated (La,Sr)MnO₃ thin films on n-type SrTiO ₃ substrates doped with Nb by means of the pulsed laser deposition technique. It is shown that hole carriers photogenerated in the substrates under UV light irradiation are injected efficiently to the films. By measuring the out-of-plane voltage of the heterojunction the surface density of hole carriers injected to (La,Sr)MnO₃ is estimated: It is at most 1.6 × 10¹³cm^-2, but is improved up to 3.1 × 10 ¹³cm^-2 by modifying the junction structure, i.e., inserting a pure SrTiO₃ layer between the film and the substrate.

Original language	English
Pages (from-to)	e787-e788
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jmmm.2003.12.121
Publication status	Published - May 2004
Externally published	Yes

Keywords

Heterostructure
La SrMnO
Perovskite manganites
Photocarrier injection

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2003.12.121

Cite this

@article{e2040e0e29a844c0a019617c3aeecf36,

title = "Photocarrier injection to perovskite manganites",

abstract = "We have fabricated (La,Sr)MnO3 thin films on n-type SrTiO 3 substrates doped with Nb by means of the pulsed laser deposition technique. It is shown that hole carriers photogenerated in the substrates under UV light irradiation are injected efficiently to the films. By measuring the out-of-plane voltage of the heterojunction the surface density of hole carriers injected to (La,Sr)MnO3 is estimated: It is at most 1.6 × 1013cm-2, but is improved up to 3.1 × 10 13cm-2 by modifying the junction structure, i.e., inserting a pure SrTiO3 layer between the film and the substrate.",

keywords = "Heterostructure, La SrMnO, Perovskite manganites, Photocarrier injection",

author = "T. Muramatsu and Y. Muraoka and T. Yamauchi and J. Yamaura and Z. Hiroi",

note = "Funding Information: This work was supported by Grants-in-Aid for Scientific Research on Priority Areas (A) and Creative Scientific Research provided by the Ministry of Education, Culture, Sports, Science and Technology, Japan.",

year = "2004",

month = may,

doi = "10.1016/j.jmmm.2003.12.121",

language = "English",

volume = "272-276",

pages = "e787--e788",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "SUPPL. 1",

}

TY - JOUR

T1 - Photocarrier injection to perovskite manganites

AU - Muramatsu, T.

AU - Muraoka, Y.

AU - Yamauchi, T.

AU - Yamaura, J.

AU - Hiroi, Z.

N1 - Funding Information: This work was supported by Grants-in-Aid for Scientific Research on Priority Areas (A) and Creative Scientific Research provided by the Ministry of Education, Culture, Sports, Science and Technology, Japan.

PY - 2004/5

Y1 - 2004/5

N2 - We have fabricated (La,Sr)MnO3 thin films on n-type SrTiO 3 substrates doped with Nb by means of the pulsed laser deposition technique. It is shown that hole carriers photogenerated in the substrates under UV light irradiation are injected efficiently to the films. By measuring the out-of-plane voltage of the heterojunction the surface density of hole carriers injected to (La,Sr)MnO3 is estimated: It is at most 1.6 × 1013cm-2, but is improved up to 3.1 × 10 13cm-2 by modifying the junction structure, i.e., inserting a pure SrTiO3 layer between the film and the substrate.

AB - We have fabricated (La,Sr)MnO3 thin films on n-type SrTiO 3 substrates doped with Nb by means of the pulsed laser deposition technique. It is shown that hole carriers photogenerated in the substrates under UV light irradiation are injected efficiently to the films. By measuring the out-of-plane voltage of the heterojunction the surface density of hole carriers injected to (La,Sr)MnO3 is estimated: It is at most 1.6 × 1013cm-2, but is improved up to 3.1 × 10 13cm-2 by modifying the junction structure, i.e., inserting a pure SrTiO3 layer between the film and the substrate.

KW - Heterostructure

KW - La SrMnO

KW - Perovskite manganites

KW - Photocarrier injection

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UR - http://www.scopus.com/inward/citedby.url?scp=4544343140&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2003.12.121

DO - 10.1016/j.jmmm.2003.12.121

M3 - Article

AN - SCOPUS:4544343140

SN - 0304-8853

VL - 272-276

SP - e787-e788

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - SUPPL. 1

ER -

Photocarrier injection to perovskite manganites

Abstract

Keywords

ASJC Scopus subject areas

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