Formation and superconducting properties of As grown Bi-Ca-Sr-Cu-O films by AC sputtering

H. C. Yang; H. C. Chen; H. E. Horng; J. C. Yu

doi:10.1088/0953-2048/4/1S/114

Formation and superconducting properties of As grown Bi-Ca-Sr-Cu-O films by AC sputtering

H. C. Yang^*
, H. C. Chen
, H. E. Horng
, J. C. Yu

^*此作品的通信作者

光電工程研究所暨學士學位學程

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

1 引文斯高帕斯（Scopus）

摘要

The authors have in situ grown Bi-Ca-Sr-Cu-O films by ac sputtering. The substrates were heated to 630-670 degrees C during ac sputtering. The sputtering was first carried out in a mixture of Ar(70%) and O₂(30%) at a pressure of 0.2 mbar. Then the mixture of Ar(70%) and O₂(30%) was replaced by pure O₂ and the sputtering was kept for another one hour. Superconducting Bi₂CaSr₂Cu₂O_y (2122) films with zero resistance at 70-75 K can be reproduced. The critical fields of the as grown films parallel to c-axis and ab-plane has been measured. The estimated zero temperature coherence lengths are zeta _c=3.3 AA and zeta _ab=36.1 AA respectively for the (2122) phase.

原文	英語
文章編號	114
頁（從 - 到）	S385-S387
期刊	Superconductor Science and Technology
卷	4
發行號	1 S
DOIs	https://doi.org/10.1088/0953-2048/4/1S/114
出版狀態	已發佈 - 1991

ASJC Scopus subject areas

陶瓷和複合材料
凝聚態物理學
金屬和合金
電氣與電子工程
材料化學

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10.1088/0953-2048/4/1S/114

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abstract = "The authors have in situ grown Bi-Ca-Sr-Cu-O films by ac sputtering. The substrates were heated to 630-670 degrees C during ac sputtering. The sputtering was first carried out in a mixture of Ar(70\%) and O2(30\%) at a pressure of 0.2 mbar. Then the mixture of Ar(70\%) and O2(30\%) was replaced by pure O2 and the sputtering was kept for another one hour. Superconducting Bi2CaSr2Cu2Oy (2122) films with zero resistance at 70-75 K can be reproduced. The critical fields of the as grown films parallel to c-axis and ab-plane has been measured. The estimated zero temperature coherence lengths are zeta c=3.3 AA and zeta ab=36.1 AA respectively for the (2122) phase.",

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AB - The authors have in situ grown Bi-Ca-Sr-Cu-O films by ac sputtering. The substrates were heated to 630-670 degrees C during ac sputtering. The sputtering was first carried out in a mixture of Ar(70%) and O2(30%) at a pressure of 0.2 mbar. Then the mixture of Ar(70%) and O2(30%) was replaced by pure O2 and the sputtering was kept for another one hour. Superconducting Bi2CaSr2Cu2Oy (2122) films with zero resistance at 70-75 K can be reproduced. The critical fields of the as grown films parallel to c-axis and ab-plane has been measured. The estimated zero temperature coherence lengths are zeta c=3.3 AA and zeta ab=36.1 AA respectively for the (2122) phase.

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Formation and superconducting properties of As grown Bi-Ca-Sr-Cu-O films by AC sputtering

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