Ganguli, AK and Swamy, Nanjunda KS and Subbanna, GN and Rajumon, MK and Sarma, DD and Rao, CNR (1988) Superconductivity in the Tl-Ca-Ba-Cu-O System: Synthesis, characterization and mechanism. In: Modern Physics Letters B, 2 (10). pp. 1169-1176.
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Synthesis and characterization of some of the members of the Tl-Ca-Ba-Cu-O system are presented. $T_c$ in both the $TlCa_{n-1}Ba_2Cu_nO_{2n+3}$ and $Tl_2Ca_{n-1}Ba_2Cu_nO_{2n+4}$ series increase with the number of Cu-O layers, n; $T_c$ in the latter series with two Tl-O layers are generally higher than in the former with a single Tl-O layer. Tl in the cuprates is in the 3+ state while Cu is in the 1+ and 2+ states, showing the importance of oxygen holes. The concentration of these holes seems to increase with the number of Tl-O layers.
| Item Type: | Journal Article |
|---|---|
| Publication: | Modern Physics Letters B |
| Publisher: | World Scientific Publishing |
| Additional Information: | Copyright of this article belongs to World Scientific Publishing. |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 28 Feb 2008 |
| Last Modified: | 27 Aug 2008 13:12 |
| URI: | http://eprints.iisc.ac.in/id/eprint/13117 |
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