Physics – Condensed Matter – Superconductivity
Scientific paper
2005-08-21
Physics
Condensed Matter
Superconductivity
18 pages, 4 figures
Scientific paper
10.1103/PhysRevB.73.094505
Two series of alpha and beta-NaxCoO2 materials have been prepared by means of Na deintercalation from the parent alpha-NaCoO2 and beta-Na0.6CoO2 phases, respectively. The alpha-NaxCoO2 materials undergo a clear phase transition from the hexagonal to the beta-phase like monoclinic structure along with Na deintercalation. Measurements of resistivity and magnetization demonstrated the presence notable charge ordering transitions in both alpha and beta-NaxCoO2 with 0.4 < x < 0.5 below 100K. Bulk Superconductivity has been observed in the hydrated alpha-NaxCoO2.1.3H2O at ~4.5K and in beta-NaxCoO2.1.3H2O at \~4.3K. Intercalation of D2O in alpha and beta-Na0.33CoO2 also yields superconductivity at slightly lower temperatures. It is worthy to note that, despite of the structural difference, the alpha-, beta- and gamma-NaxCoO2 .yH2O materials show up notable commonalities in their essential physical properties, e.g. superconductivity and charge ordering transitions.
Huang Haifeng
Li Jing-Qian
Liu Xiandong
Shi Y. G.
Yang Han-Xin
No associations
LandOfFree
Superconductivity, charge ordering and structural properties of alpha and beta-NaxCoO2.y(H2O, D2O) 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 Superconductivity, charge ordering and structural properties of alpha and beta-NaxCoO2.y(H2O, D2O), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconductivity, charge ordering and structural properties of alpha and beta-NaxCoO2.y(H2O, D2O) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-33455