Control of the Superconducting Properties of YBa 2 Cu 3 O 7 by Topotactic Redox Reactions
1987; Wiley; Volume: 26; Issue: 11 Linguagem: Inglês
10.1002/anie.198711881
ISSN1521-3773
AutoresH. Eickenbusch, Werner Paulus, Elmar Gocke, Joachim Friedrich March, Hans Koch, R. Schöllhorn,
Tópico(s)Advanced Chemical Physics Studies
ResumoThe critical temperature of the phase transition normal conductivity/superconductivity can be controlled continuously and reversibly between 93 K and 30 K for the high‐temperature superconductor YBa 2 Cu 3 O 7 over a nonstoichiometric range Yba 2 Cu 3 O x (7 ≥ x ≥ 6.5) by means of topotactic oxygen intercalation and deintercalation. Hydrogen and lithium can also be inserted into the lattice of the superconductor at low temperatures. 7 Li‐NMR investigations revealed a high mobility of the Li ions at room temperature.
Referência(s)