Superconducting thallium cuprate thin films; Processing and characterisation

L. G. Johansson; V. Langer; E. A. Stepantsov; A. Litvinchuk; L. Borjesson; Y. F. Chen; T. Claeson; Z. G. Ivanov; E. Olsson; A. Y. Tzalenchuk

Superconducting thallium cuprate thin films; Processing and characterisation

L. G. Johansson, V. Langer, E. A. Stepantsov, A. Litvinchuk, L. Borjesson, Y. F. Chen, T. Claeson, Z. G. Ivanov, E. Olsson, A. Y. Tzalenchuk

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Other contribution

Abstract

Superconducting epitaxial Tl2Ba2CaCu2O8 (Tl-2212) thin films are reproducibly synthesised on single-crystal LaAlO3 substrates by an ex-situ process using prefilms deposited by laser ablation and treating with Tl2O(g) at 730-875 degrees C under quasi-equilibrium conditions. The influence of the composition of the Tl2O source on film properties is investigated, the best films being produced using Tl-2212 with a 2% excess of Tl2O3. Films prepared at optimum conditions with respect to Tl2O source, annealing temperature and precursor target composition are optically smooth, c-axis oriented and epitaxial, containing low levels of impurity phases. T-c's range between 105 and 108K with Delta T-c

Original language	English
Title of host publication	Applied Superconductivity 1995, Vols. 1 and 2: Vol 1: Plenary Talks and High Current Applications; Vol 2: Small Scale Applications
Pages	797-800
Number of pages	4
Volume	148
Publication status	Published - 1995

Publication series

Name	Institute of Physics Conference Series

Cite this

Johansson, L. G., Langer, V., Stepantsov, E. A., Litvinchuk, A., Borjesson, L., Chen, Y. F., Claeson, T., Ivanov, Z. G., Olsson, E., & Tzalenchuk, A. Y. (1995). Superconducting thallium cuprate thin films; Processing and characterisation. In Applied Superconductivity 1995, Vols. 1 and 2: Vol 1: Plenary Talks and High Current Applications; Vol 2: Small Scale Applications (Vol. 148, pp. 797-800). (Institute of Physics Conference Series).

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title = "Superconducting thallium cuprate thin films; Processing and characterisation",

abstract = "Superconducting epitaxial Tl2Ba2CaCu2O8 (Tl-2212) thin films are reproducibly synthesised on single-crystal LaAlO3 substrates by an ex-situ process using prefilms deposited by laser ablation and treating with Tl2O(g) at 730-875 degrees C under quasi-equilibrium conditions. The influence of the composition of the Tl2O source on film properties is investigated, the best films being produced using Tl-2212 with a 2% excess of Tl2O3. Films prepared at optimum conditions with respect to Tl2O source, annealing temperature and precursor target composition are optically smooth, c-axis oriented and epitaxial, containing low levels of impurity phases. T-c's range between 105 and 108K with Delta T-c ",

author = "Johansson, {L. G.} and V. Langer and Stepantsov, {E. A.} and A. Litvinchuk and L. Borjesson and Chen, {Y. F.} and T. Claeson and Ivanov, {Z. G.} and E. Olsson and Tzalenchuk, {A. Y.}",

year = "1995",

language = "English",

volume = "148",

series = "Institute of Physics Conference Series",

pages = "797--800",

booktitle = "Applied Superconductivity 1995, Vols. 1 and 2: Vol 1: Plenary Talks and High Current Applications; Vol 2: Small Scale Applications",

}

Johansson, LG, Langer, V, Stepantsov, EA, Litvinchuk, A, Borjesson, L, Chen, YF, Claeson, T, Ivanov, ZG, Olsson, E & Tzalenchuk, AY 1995, Superconducting thallium cuprate thin films; Processing and characterisation. in Applied Superconductivity 1995, Vols. 1 and 2: Vol 1: Plenary Talks and High Current Applications; Vol 2: Small Scale Applications. vol. 148, Institute of Physics Conference Series, pp. 797-800.

Superconducting thallium cuprate thin films; Processing and characterisation. / Johansson, L. G.; Langer, V.; Stepantsov, E. A. et al.
Applied Superconductivity 1995, Vols. 1 and 2: Vol 1: Plenary Talks and High Current Applications; Vol 2: Small Scale Applications. Vol. 148 1995. p. 797-800 (Institute of Physics Conference Series).

Research output: Chapter in Book/Report/Conference proceeding › Other contribution

TY - CHAP

T1 - Superconducting thallium cuprate thin films; Processing and characterisation

AU - Johansson, L. G.

AU - Langer, V.

AU - Stepantsov, E. A.

AU - Litvinchuk, A.

AU - Borjesson, L.

AU - Chen, Y. F.

AU - Claeson, T.

AU - Ivanov, Z. G.

AU - Olsson, E.

AU - Tzalenchuk, A. Y.

PY - 1995

Y1 - 1995

N2 - Superconducting epitaxial Tl2Ba2CaCu2O8 (Tl-2212) thin films are reproducibly synthesised on single-crystal LaAlO3 substrates by an ex-situ process using prefilms deposited by laser ablation and treating with Tl2O(g) at 730-875 degrees C under quasi-equilibrium conditions. The influence of the composition of the Tl2O source on film properties is investigated, the best films being produced using Tl-2212 with a 2% excess of Tl2O3. Films prepared at optimum conditions with respect to Tl2O source, annealing temperature and precursor target composition are optically smooth, c-axis oriented and epitaxial, containing low levels of impurity phases. T-c's range between 105 and 108K with Delta T-c

AB - Superconducting epitaxial Tl2Ba2CaCu2O8 (Tl-2212) thin films are reproducibly synthesised on single-crystal LaAlO3 substrates by an ex-situ process using prefilms deposited by laser ablation and treating with Tl2O(g) at 730-875 degrees C under quasi-equilibrium conditions. The influence of the composition of the Tl2O source on film properties is investigated, the best films being produced using Tl-2212 with a 2% excess of Tl2O3. Films prepared at optimum conditions with respect to Tl2O source, annealing temperature and precursor target composition are optically smooth, c-axis oriented and epitaxial, containing low levels of impurity phases. T-c's range between 105 and 108K with Delta T-c

M3 - Other contribution

VL - 148

T3 - Institute of Physics Conference Series

SP - 797

EP - 800

BT - Applied Superconductivity 1995, Vols. 1 and 2: Vol 1: Plenary Talks and High Current Applications; Vol 2: Small Scale Applications

ER -