Kumar, D. ; Satyalakshmi, K. M. ; Hegde, M. S. ; Singh, Rajiv K. ; Apte, P. R. ; Pinto, R. ; Lee, Clinton B. (1998) Zero-bias conductance and energy gap measurements in LaNiO3-YBa2Cu3O7-x junctions Superconductor Science and Technology, 11 (8). pp. 766-769. ISSN 0953-2048
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Official URL: http://iopscience.iop.org/0953-2048/11/8/009
Related URL: http://dx.doi.org/10.1088/0953-2048/11/8/009
Abstract
Conductance measurements of junctions between a high-Tc(YBa2Cu3O7-x superconductor and a metallic oxide (LaNiO3) have been carried out along the a-b plane to examine the tunnel-junction spectra. For these measurements, in situ LaNiO3 films have been grown on c-axis oriented (YBa2Cu3O7-x thin films using the pulsed laser deposition technique. Two distinctive energy gaps have been observed along with conductance peaks around zero bias. The analysis of zero-bias conductance and energy gap data suggests the presence of midgap states located at the centre of a finite energy gap. The results obtained are also in accordance with the d-wave nature of high-Tc(YBa2Cu3O7-x superconductors.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics Publishing. |
| ID Code: | 16520 |
| Deposited On: | 15 Nov 2010 09:29 |
| Last Modified: | 03 Jun 2011 08:23 |
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