| | 1 | Author
| S. Gärtner, H. Riesemeier, Y. Kitaoka, V. Müller, K. Lüders, E. Kaldis, S. Rusiecki | Requires cookie* | | | Title
| Cu-NQR Frequencies and Linewidths in High-T c Superconductors  | | | | Abstract
| The Cu-NQR lines of various high-T c superconductors at the Cu(2) site appear between 15 and 40 MHz. There exists an experimental correlation showing that the NQR frequency increases with decreasing T c . By comparison, it can be concluded from these results that a formal valence state of the Cu ion around 2 + is favourable for superconductivity. All lines exhibit a strong broadening compared to Cu0 2 crystals, which is attributed to lattice modulations within the Cu0 2 layers. This effect also influences the temperature dependence of the linewidth in YBa 2 Cu 3 0 7 _ a . | | | |
Reference
| Z. Naturforsch. 47a, 27—29 (1992); received August 3 1991 | | | |
Published
| 1992 | | | |
Keywords
| NQR, Superconductivity, High-T c compounds, Resonance frequency, Linewidth | | | |
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| default:Reihe_A/47/ZNA-1992-47a-0027.pdf | | | | Identifier
| ZNA-1992-47a-0027 | | | | Volume
| 47 | |
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