TEMPERATURE-DEPENDENT LOCAL INSTABILITY OF THE HG1212 STRUCTURE BY POLARIZED EXAFS

Authors
SAINI NL BRUNELLI M LANZARA A LUSIGNOLI M ROSSETTI T BIANCONI A BORDET P DUC F HAZEMANN JL KARPINSKI J
Citation
Nl. Saini et al., TEMPERATURE-DEPENDENT LOCAL INSTABILITY OF THE HG1212 STRUCTURE BY POLARIZED EXAFS, Journal de physique. IV, 7(C2), 1997, pp. 1245-1246
Citations number
12
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
7
Issue
C2
Year of publication
1997
Part
2
Pages
1245 - 1246
Database
ISI
SICI code
1155-4339(1997)7:C2<1245:TLIOTH>2.0.ZU;2-D
Abstract
The local structure of the Hg1Ba2CaCu2O6+delta (Hg1212) crystal has be en investigated by temperature dependent polarized Cu K-edge extended x-ray absorption fine structure (EXAFS). We have observed an anomalous behavior of the local structure showing anomaly at around the superco nducting transition temperature T-C in the temperature dependence of t he Cu-O(planar) distance. The result suggests similarity of the temper ature dependent local instability in the superconducting cuprates.