| Autor: |
James R. Gaines, P. P. Crooker, Yi Song, Anupam K. Misra |
| Rok vydání: |
1991 |
| Předmět: |
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| Zdroj: |
Physical Review Letters. 66:825-828 |
| ISSN: |
0031-9007 |
| DOI: |
10.1103/physrevlett.66.825 |
| Popis: |
1/{ital f} noise measurements have been performed on YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystals with distinct resistivity characteristics. The noise spectral density is found to be several orders of magnitude larger than that of metals, with a temperature dependence that is independent of the resistivity. In the superconducting-transition region, we do not observe anomalously enhanced 1/{ital f} noise. We discuss the important role played by the crystal morphology and we present a tunneling model which explains the experimental data quantitatively. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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