INFLUENCE OF FLUORINATION TREATMENT ON THE STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF LA2-XBAXCUO4 COMPOUNDS (X=0.08, 0.125 AND 0.15)

Authors
ROISNEL T BENSALEM E CHEVALIER B TRESSAUD A ETOURNEAU J KIAT JM
Citation
T. Roisnel et al., INFLUENCE OF FLUORINATION TREATMENT ON THE STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF LA2-XBAXCUO4 COMPOUNDS (X=0.08, 0.125 AND 0.15), Physica. C, Superconductivity, 235, 1994, pp. 843-844
Citations number
3
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
2
Pages
843 - 844
Database
ISI
SICI code
0921-4534(1994)235:<843:IOFTOT>2.0.ZU;2-9
Abstract
The fluorination treatment at 200 degrees C of La2-xBaxCuO4 compounds with x = 0.08, 0.125 and 0.15 leads to superconducting materials havin g a same critical temperature of T-c similar to 32K. The investigation of these compounds by neutron powder diffraction shows that the halog enation process drastically modifies their structural properties. Part icularly: it is observed a decrease of the orthorhombic distortion in the LTO-phase (x = 0.08 and 0.125) and a reduction of the tilt angle o f the [CuO6] octahedra in the LTT-phase (x = 0.125).