Somasundaram, P. ; Vijayaraghavan, R. ; Nagarajan, R. ; Seshadri, Ram ; Umarji, A. M. ; Rao, C. N. R. (1990) Occurrence of maximum Tc at an optimal carrier concentration in superconducting bismuth and thallium cuprates Applied Physics Letters, 56 (5). pp. 487-489. ISSN 0003-6951
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Official URL: http://apl.aip.org/resource/1/applab/v56/i5/p487_s...
Related URL: http://dx.doi.org/10.1063/1.103296
Abstract
The superconducting transition temperatures in Bi2Ca1−xLnxSr2Cu2O8+δ, TlCa1−xLnxSr2Cu2O6+δ, and Tl0.8Ca1−xLnxBa2Cu23O6+δ (Ln=Y or rare earth) vary with composition and show a maximum at a specific value of x or δ. This observation suggests that an optimal carrier concentration is required to attain maximum Tc in such cuprates which seem to be two-band systems.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | High-Tc Superconductors; Superconductivity; Transition Temperature; Carrier Density; Bismuth Oxides; Calcium Oxides; Yttrium Oxides; Copper Oxides; Strontium Oxides; Thallium Oxides; Barium Oxides; Quantity Ratio; Rare Earth Compounds |
| ID Code: | 43452 |
| Deposited On: | 11 Jun 2011 13:13 |
| Last Modified: | 11 Jun 2011 13:13 |
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