𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Studies on the superconducting state of NaxCoO2·yH2O – Overview

✍ Scribed by Masatoshi Sato; Yoshiaki Kobayashi; Taketo Moyoshi

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
748 KB
Volume
470
Category
Article
ISSN
0921-4534

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Superconducting phase diagram of NaxCoO2
Superconducting phase diagram of NaxCoO2 · yH2O
✍ Hiroya Sakurai; Kazunori Takada; Takayoshi Sasaki; Eiji Takayama-Muromachi 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 308 KB

We synthesized Na x (H 3 O) z CoO 2 AE y 0 H 2 O samples with various Na/H 3 O ratios but with the constant Co valence of s = +3.40, and measured their magnetic properties to draw phase diagrams of the system. The superconductivity is very sensitive to the Na/H 3 O ratio. With varying x under fixed

23Na NMR study of non-superconducting do
23Na NMR study of non-superconducting double-layer hydrate NaxCoO2 · yH2O
✍ H. Ohta; Y. Itoh; C. Michioka; K. Yoshimura 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 156 KB

We report 23 Na NMR studies of the polycrystalline samples of double-layer hydrated cobalt oxides Na x CoO 2 AE yH 2 O (x $ 0.35 and y $ 1.3) with the superconducting transition temperatures T c < 1.8 K and $4.5 K, and the dehydrated Na x CoO 2 (x $ 0.35). The hyperfine field and the electric field