Sundaresan, A ; Crisan, A ; Nie, J C ; Hirai, M ; Asada, H ; Kito, H ; Tanaka, Y ; Ihara, H (2002) TlSr2CaCu2Oy template for the growth of superconducting Tl(Ba, Sr)2Ca2Cu3Oy thin films on CeO2 buffered sapphire Superconductor Science and Technology, 15 (6). pp. 960-963. ISSN 0953-2048
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Official URL: http://doi.org/10.1088/0953-2048/15/6/322
Related URL: http://dx.doi.org/10.1088/0953-2048/15/6/322
Abstract
Thin films of Tl(Ba, Sr)2Ca2Cu3Oy superconductor have been grown on CeO2 buffered r-cut sapphire substrate with the use of a template TlSr2CaCu2Oy by the amorphous phase epitaxy method. By using this template containing Sr, we have overcome the problem of chemical reactions between Ba and Ce present in the superconducting and buffer layers, respectively, at the normal processing temperatures of 840–890 °C. Films grown by this method have an excellent c-axis orientation as well as in-plane alignment with the TlSr2CaCu2Oy template, which in turn is aligned with the CeO2 layers. These films have superconducting critical temperature values up to 104 K and critical current density values as high as 1 MA cm−2 at 77.3 K and 0 T.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics Publishing. |
| ID Code: | 120161 |
| Deposited On: | 23 Jun 2021 08:14 |
| Last Modified: | 23 Jun 2021 08:14 |
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