Superconducting Bi-Sr-Ca-Cu-O Films Prepared by Laser Ablation

A. Gupta; G. Koren; G. V. Chandrashekhar; A. Segmuller

doi:10.1117/12.965155

19 March 1990 Superconducting Bi-Sr-Ca-Cu-O Films Prepared by Laser Ablation

A. Gupta, G. Koren, G. V. Chandrashekhar, A. Segmuller

Proceedings Volume 1187, Processing of Films for High Tc Superconducting Electronics; (1990) https://doi.org/10.1117/12.965155
Event: 1989 Microelectronic Integrated Processing Conferences, 1989, Santa Clara, United States

Abstract

Superconducting thin films of Bi-Sr-Ca-Cu-O have been grown on single crystal (100) SrTiO3 and MgO substrates using laser ablation at 355 nm. Films have been deposited using compositions of 2:2:1:2 (Bi:Sr:Ca:Cu) and 1.86:0.33:1.93:2.06:3.06 (Bi:Pb:Sr:Ca:Cu) to form primarily the low temperature Bi2Sr2CalCu20, and the high temperature Bi2Sr2Ca2Cu3Ox phases, respectively. Films deposited at 760-765°C substrate temperature in the presence of 1 Torr of oxygen show superconducting onset temperatures of 85 K and 110 K, respectively, for the two compositions, with zero resistance obtained at about 70 K in both cases. The zero resistance temperatures for the films can be improved by subsequent annealing of the films at higher temperatures.

Citation Download Citation

A. Gupta, G. Koren, G. V. Chandrashekhar, and A. Segmuller "Superconducting Bi-Sr-Ca-Cu-O Films Prepared by Laser Ablation", Proc. SPIE 1187, Processing of Films for High Tc Superconducting Electronics, (19 March 1990); https://doi.org/10.1117/12.965155

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available