Abstract
Recently, Sheng and Hermann1 reported the achievement of zero resistance at >100 K in the system Tl-Ca-Ba-Cu-O (TCBCO). Two superconducting phases were immediately identified2 as Tl2CaBa 2Cu2O8+δ (2122) and Tl2Ca 2Ba2Cu3O10+δ (2223). Here we confirm that zero resistance is achievable above 100 K in 2122-TCBCO synthesized by a fast solid-state reaction, and report a small positive pressure dependence of the transition temperature, as in Bi2CaSr2Cu 2O8+δ3.
Original language | English |
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Pages (from-to) | 623-624 |
Number of pages | 2 |
Journal | Nature |
Volume | 332 |
Issue number | 6165 |
DOIs | |
Publication status | Published - 1988 |
All Science Journal Classification (ASJC) codes
- General