HYDRIDE PHASE IN C-AXIS ORIENTED YBA2CU3O7 THIN-FILMS

Authors
ERXMEYER J DORTMANN G BLASSER S STEIGER J WINKLER W WEIDINGER A
Citation
J. Erxmeyer et al., HYDRIDE PHASE IN C-AXIS ORIENTED YBA2CU3O7 THIN-FILMS, Zeitschrift für physikalische Chemie, 181, 1993, pp. 405-410
Citations number
8
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift für physikalische Chemie → ACNP
ISSN journal
09429352
Volume
181
Year of publication
1993
Part
1-2
Pages
405 - 410
Database
ISI
SICI code
0942-9352(1993)181:<405:HPICOY>2.0.ZU;2-8
Abstract
c-Axis oriented YBa2Cu3O7 films were charged with hydrogen from the ga s phase at p = 100 mbar and T = 463 K. The hydrogen concentration was measured by the N-15 nuclear reaction method. At a hydrogen concentrat ion of [H]/cell = 2, a new phase (hydride) is observed in X-ray diffra ction. The new phase has a 16% larger c-axis parameter than the origin al material and is not superconducting. Based on structure factor calc ulations, a suggestion for the structure of the hydride phase is made.