Abstract
NMR measurements on n-type copper-oxide Pr0.91Ce 0.09LaCuO4-y (Tc=24 K) are reported. The results of the spin-lattice relaxation rate and the Knight shift indicate that the superconducting gap possesses line nodes, consistent with d-wave symmetry. We further find that no pseudogap appears in the normal state even though the present sample is low-doped. The latter property contrasts with that in p-type copper-oxides with similar doping level where superconductivity sets in a pseudogap state.
Original language | English |
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Pages (from-to) | 319-320 |
Number of pages | 2 |
Journal | Physica C: Superconductivity and its applications |
Volume | 408-410 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - Aug 1 2004 |
Externally published | Yes |
Event | Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: May 25 2003 → May 30 2003 |
Keywords
- Electron-doped cuprate
- NMR
- PrCeLaCuO
- d-wave
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering