Pulsed laser deposition of epitaxial buffer layers on LiNbO                         3

F. Sánchez; N. Domingo; M. V. García-Cuenca; C. Guerrero; C. Ferrater; M. Varela

doi:10.1016/S0169-4332(01)00699-7

Pulsed laser deposition of epitaxial buffer layers on LiNbO ₃

F. Sánchez, N. Domingo, M. V. García-Cuenca, C. Guerrero, C. Ferrater, M. Varela

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

The aim of this work is to obtain films with suitable characteristics for use as buffer layers for YBCO superconducting electrodes in LiNbO ₃ -based electro-optic devices. For this purpose, an epitaxial buffer with single orientation and low surface roughness is required. The possibilities of two oxides, yttria-stabilised zirconia (YSZ) and CeO ₂ , have been explored. The films were grown on X-cut LiNbO ₃ single crystals by pulsed laser deposition, and the influence of the processing conditions was studied. The YSZ films are epitaxial with single (0 0 1) orientation and the surface is appropriate for use as a first layer in a heterostructure. These were the properties found in films grown under relatively broad ranges of deposition parameters, which allows a very high reproducibility. However, the lithium-deficient LiNb ₃ O ₈ compound was found at the interface in all the films. This compound was not observed when CeO ₂ films were deposited. These films are epitaxial and (0 1 1)-oriented, although they can also contain (0 0 1)-oriented crystals.

Original language	English
Pages (from-to)	397-402
Number of pages	6
Journal	Applied Surface Science
Volume	186
Issue number	1-4
DOIs	https://doi.org/10.1016/S0169-4332(01)00699-7
State	Published - Jan 28 2002
Externally published	Yes
Event	Proceedings of the European Materials Research Society 2001 Symposium - Strasbourg, France Duration: Jun 5 2001 → Jun 5 2001

Funding

Financial support by the CICYT of the Spanish Government (Project MAT99-0984) is acknowledged.

Funders	Funder number
Comisión Interministerial de Ciencia y Tecnología	MAT99-0984

Keywords

CeO
Epitaxy
LiNbO
Oxides
Thin films
YSZ

Access to Document

10.1016/S0169-4332(01)00699-7

Cite this

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title = " Pulsed laser deposition of epitaxial buffer layers on LiNbO 3 ",

abstract = " The aim of this work is to obtain films with suitable characteristics for use as buffer layers for YBCO superconducting electrodes in LiNbO 3 -based electro-optic devices. For this purpose, an epitaxial buffer with single orientation and low surface roughness is required. The possibilities of two oxides, yttria-stabilised zirconia (YSZ) and CeO 2 , have been explored. The films were grown on X-cut LiNbO 3 single crystals by pulsed laser deposition, and the influence of the processing conditions was studied. The YSZ films are epitaxial with single (0 0 1) orientation and the surface is appropriate for use as a first layer in a heterostructure. These were the properties found in films grown under relatively broad ranges of deposition parameters, which allows a very high reproducibility. However, the lithium-deficient LiNb 3 O 8 compound was found at the interface in all the films. This compound was not observed when CeO 2 films were deposited. These films are epitaxial and (0 1 1)-oriented, although they can also contain (0 0 1)-oriented crystals.",

keywords = "CeO, Epitaxy, LiNbO, Oxides, Thin films, YSZ",

author = "F. S{\'a}nchez and N. Domingo and Garc{\'i}a-Cuenca, {M. V.} and C. Guerrero and C. Ferrater and M. Varela",

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AU - Sánchez, F.

AU - Domingo, N.

AU - García-Cuenca, M. V.

AU - Guerrero, C.

AU - Ferrater, C.

AU - Varela, M.

PY - 2002/1/28

Y1 - 2002/1/28

N2 - The aim of this work is to obtain films with suitable characteristics for use as buffer layers for YBCO superconducting electrodes in LiNbO 3 -based electro-optic devices. For this purpose, an epitaxial buffer with single orientation and low surface roughness is required. The possibilities of two oxides, yttria-stabilised zirconia (YSZ) and CeO 2 , have been explored. The films were grown on X-cut LiNbO 3 single crystals by pulsed laser deposition, and the influence of the processing conditions was studied. The YSZ films are epitaxial with single (0 0 1) orientation and the surface is appropriate for use as a first layer in a heterostructure. These were the properties found in films grown under relatively broad ranges of deposition parameters, which allows a very high reproducibility. However, the lithium-deficient LiNb 3 O 8 compound was found at the interface in all the films. This compound was not observed when CeO 2 films were deposited. These films are epitaxial and (0 1 1)-oriented, although they can also contain (0 0 1)-oriented crystals.

AB - The aim of this work is to obtain films with suitable characteristics for use as buffer layers for YBCO superconducting electrodes in LiNbO 3 -based electro-optic devices. For this purpose, an epitaxial buffer with single orientation and low surface roughness is required. The possibilities of two oxides, yttria-stabilised zirconia (YSZ) and CeO 2 , have been explored. The films were grown on X-cut LiNbO 3 single crystals by pulsed laser deposition, and the influence of the processing conditions was studied. The YSZ films are epitaxial with single (0 0 1) orientation and the surface is appropriate for use as a first layer in a heterostructure. These were the properties found in films grown under relatively broad ranges of deposition parameters, which allows a very high reproducibility. However, the lithium-deficient LiNb 3 O 8 compound was found at the interface in all the films. This compound was not observed when CeO 2 films were deposited. These films are epitaxial and (0 1 1)-oriented, although they can also contain (0 0 1)-oriented crystals.

KW - CeO

KW - Epitaxy

KW - LiNbO

KW - Oxides

KW - Thin films

KW - YSZ

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