Abstract
Spatially-resolved NMR is used to probe internal structures in highly correlated superconductors of optimally-doped Tl2Ba 2CuO6+δ (Tc=85 K) and a heavy fermion superconductor CeCoIn5 (Tc = 2.3 K). The characteristic change of the properties of 205Tl-NMR in the vortex state provides a clear evidence of the antiferromagnetic order in the vortex cores below 20 K in Tl2Ba2CuO6+δ. We also obtain anomalous 115In-NMR spectra of CeCoIn5, which provides a microscopic evidence for the occurrence of a spatially-modulated superconducting order parameter expected in a Fulde-Ferrel-Larkin-Ovchinnkov (FFLO) state.
Original language | English |
---|---|
Pages (from-to) | 87-93 |
Number of pages | 7 |
Journal | Hyperfine Interactions |
Volume | 159 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - Dec 2004 |
Externally published | Yes |
Keywords
- Antiferromagnetic order
- FFLO state
- NMR
- Superconductivity
- Vortex core
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
- Condensed Matter Physics
- Physical and Theoretical Chemistry