63Cu NQR measurement has been carried out in superconducting and nonsuperconducting {metallic) TISr2CaCu207-~ . In the superconducting material, 1/T1 follows the TiT=const. relation only in a narrow temperature range above Tc, suggesting the existence of the AF spin fluctuation. The reduction of I/T
Fluorine doped high Tc cuprate TlSr2CaCu2O7
โ Scribed by Y. Xin; K.W. Wong; G.F. Sun; D.F. Lu
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 418 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0038-1098
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๐ SIMILAR VOLUMES
The effects of pressure on T c and structure in overdoped T1Sr2CaCu20 7\_ 6 have been investigated. For superconducting samples dTc/d p is small and negative with din Told p varying from -0.016 GPa -l to -0.006 GPa -l. There is no significant difference in the lattice compressibilities for supercond
The structure parameters of superconducting and nonsupereonducting TISr2CaCu2OT-z were refined using neutronpowder-diffraction data on the basis of P4/mmm space group. Ald site of oxygen on a TIO sheet is considerably deficient even in the oxygen-rich nonsuperconducting sample; the occupation factor