Superconducting mercury-based cuprate films with a zero-resistance transition temperature of 124 Kelvin.


Journal Article

The synthesis of high-quality films of the recently discovered mercury-based cuprate films with high transition temperatures has been plagued by problems such as the air sensitivity of the cuprate precursor and the volatility of Hg and HgO. These processing difficulties have been circumvented by a technique of atomic-scale mixing of the HgO and cuprate precursors, use of a protective cap layer, and annealing in an appropriate Hg and O(2) environment. With this procedure, a zero-resistance transition temperature as high as 124 kelvin in c axis-oriented epitaxial HgBa(2)CaCu(2)O(6+delta) films has been achieved.

Full Text

Duke Authors

Cited Authors

  • Tsuei, CC; Gupta, A; Trafas, G; Mitzi, D

Published Date

  • March 1994

Published In

Volume / Issue

  • 263 / 5151

Start / End Page

  • 1259 - 1261

PubMed ID

  • 17817429

Pubmed Central ID

  • 17817429

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.263.5151.1259


  • eng