59Co-NMR Knight Shift of the Superconducting NaxCoO2.yH2O

Details 59Co-NMR Knight Shift of the Superconducting NaxCoO2.yH2O 59Co-NMR Knight Shift of the Superconducting NaxCoO2.yH2O

2003-06-11

arxiv.org/abs/cond-mat/0306264v2

J. Phys. Soc Jpn. 72 (2003) 2453.

Physics

Condensed Matter

Superconductivity

6 pages, 4 figures, submitted to J. Phys. Soc. Jpn

Scientific paper

Layered Co oxide NaxCoO2.yH2O with the superconducting transition temperature Tc =4.5 K has been studied by 59Co-NMR. The Knight shift K estimated from the observed spectra for powder sample exhibits almost temperature(T)-independent behavior above Tc and decreases with decreasing T below Tc. This result and the existence of the coherence peak in the spin-lattice-relaxation-rate versus T curve reported by the present authors indicate, naively speaking, that the singlet order parameter with s-wave symmetry is realized in NaxCoO2.yH2O. Differences of the observed behaviors between the spectra of the non-aligned sample and the one aligned in epoxy adhesive by applying the external magnetic field are discussed.

Affiliated with

Also associated with

No associations

Rating

59Co-NMR Knight Shift of the Superconducting NaxCoO2.yH2O does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with 59Co-NMR Knight Shift of the Superconducting NaxCoO2.yH2O, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 59Co-NMR Knight Shift of the Superconducting NaxCoO2.yH2O will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-457979