Oxygen transport in c-axis oriented high-Tc superconducting YBa2Cu3O7 thin films studied in situ by ellipsometry

W.A.M. Aarnink; R.P.J. IJsselsteijn; J. Gao; A. van Silfhout; H. Rogalla

doi:10.1103/PhysRevB.45.13002

Oxygen transport in c-axis oriented high-Tc superconducting YBa2Cu3O7 thin films studied in situ by ellipsometry

W.A.M. Aarnink, R.P.J. IJsselsteijn, J. Gao, A. van Silfhout, H. Rogalla

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

22 Citations (Scopus)

97 Downloads (Pure)

Abstract

In this report we present a study on oxygen transport in c-axis-oriented high-Tc superconducting YBa2Cu3O7-δ thin films. We have performed oxygen outdiffusion experiments, by gently heating these films in an ultrahigh-vacuum system. A rotating-analyzer ellipsometer has been used as an in situ monitor. For the oxygen transport we have developed an optical model. Our in situ ellipsometric measurements cannot be described without the assumption that short circuits are present in the films. The oxygen diffuses in the a-b planes of the YBa2Cu3O7-δ to the short circuits. Along these short circuits, the oxygen leaves the films. In our case, the average spacing between the short circuits is 2.5±0.2 μm. No outward diffusion of oxygen occurs along the c axis in the YBa2Cu3O7-δ films.

Original language	English
Pages (from-to)	1300-1307
Number of pages	8
Journal	Physical Review B (Condensed Matter)
Volume	45
Issue number	45
DOIs	https://doi.org/10.1103/PhysRevB.45.13002
Publication status	Published - 1992

Keywords

METIS-129048
IR-73164

Access to Document

10.1103/PhysRevB.45.13002

Aarnink1992oxygenFinal published version, 1 MB

Cite this

@article{d1f3d1fa04484bffb416fdbfb76971ea,

title = "Oxygen transport in c-axis oriented high-Tc superconducting YBa2Cu3O7 thin films studied in situ by ellipsometry",

abstract = "In this report we present a study on oxygen transport in c-axis-oriented high-Tc superconducting YBa2Cu3O7-δ thin films. We have performed oxygen outdiffusion experiments, by gently heating these films in an ultrahigh-vacuum system. A rotating-analyzer ellipsometer has been used as an in situ monitor. For the oxygen transport we have developed an optical model. Our in situ ellipsometric measurements cannot be described without the assumption that short circuits are present in the films. The oxygen diffuses in the a-b planes of the YBa2Cu3O7-δ to the short circuits. Along these short circuits, the oxygen leaves the films. In our case, the average spacing between the short circuits is 2.5±0.2 μm. No outward diffusion of oxygen occurs along the c axis in the YBa2Cu3O7-δ films.",

keywords = "METIS-129048, IR-73164",

author = "W.A.M. Aarnink and R.P.J. IJsselsteijn and J. Gao and {van Silfhout}, A. and H. Rogalla",

year = "1992",

doi = "10.1103/PhysRevB.45.13002",

language = "English",

volume = "45",

pages = "1300--1307",

journal = "Physical review B: Covering condensed matter and materials physics",

issn = "2469-9950",

publisher = "American Institute of Physics",

number = "45",

}

TY - JOUR

T1 - Oxygen transport in c-axis oriented high-Tc superconducting YBa2Cu3O7 thin films studied in situ by ellipsometry

AU - Aarnink, W.A.M.

AU - IJsselsteijn, R.P.J.

AU - Gao, J.

AU - van Silfhout, A.

AU - Rogalla, H.

PY - 1992

Y1 - 1992

N2 - In this report we present a study on oxygen transport in c-axis-oriented high-Tc superconducting YBa2Cu3O7-δ thin films. We have performed oxygen outdiffusion experiments, by gently heating these films in an ultrahigh-vacuum system. A rotating-analyzer ellipsometer has been used as an in situ monitor. For the oxygen transport we have developed an optical model. Our in situ ellipsometric measurements cannot be described without the assumption that short circuits are present in the films. The oxygen diffuses in the a-b planes of the YBa2Cu3O7-δ to the short circuits. Along these short circuits, the oxygen leaves the films. In our case, the average spacing between the short circuits is 2.5±0.2 μm. No outward diffusion of oxygen occurs along the c axis in the YBa2Cu3O7-δ films.

AB - In this report we present a study on oxygen transport in c-axis-oriented high-Tc superconducting YBa2Cu3O7-δ thin films. We have performed oxygen outdiffusion experiments, by gently heating these films in an ultrahigh-vacuum system. A rotating-analyzer ellipsometer has been used as an in situ monitor. For the oxygen transport we have developed an optical model. Our in situ ellipsometric measurements cannot be described without the assumption that short circuits are present in the films. The oxygen diffuses in the a-b planes of the YBa2Cu3O7-δ to the short circuits. Along these short circuits, the oxygen leaves the films. In our case, the average spacing between the short circuits is 2.5±0.2 μm. No outward diffusion of oxygen occurs along the c axis in the YBa2Cu3O7-δ films.

KW - METIS-129048

KW - IR-73164

U2 - 10.1103/PhysRevB.45.13002

DO - 10.1103/PhysRevB.45.13002

M3 - Article

VL - 45

SP - 1300

EP - 1307

JO - Physical review B: Covering condensed matter and materials physics

JF - Physical review B: Covering condensed matter and materials physics

SN - 2469-9950

IS - 45

ER -

Oxygen transport in c-axis oriented high-Tc superconducting YBa2Cu3O7 thin films studied in situ by ellipsometry

Abstract

Keywords

Access to Document

Fingerprint

Cite this