In:
Materials Science Forum, Trans Tech Publications, Ltd., Vol. 530-531 ( 2006-11), p. 550-556
Abstract:
The discovery of the spatial uniform coexistence of superconductivity and
ferromagnetism in rutheno-cuprates, RuSr2GdCu2O8 (Ru-1212), has spurred an extraordinary development in the study of the competition between magnetism and superconductivity.
However, several points of their preparation process and characterization that determine their superconductive behavior are still obscure. The improvement of sample preparation conditions
involves some thermal treat ments in inert atmosphere. The first treatment results in the
immediate formation of Sr2GdRuO6. Using the CuO composition as a precursor, we produced Ru-1212. To turn it metallic and superconductor, besides the previous treatment, a final
sinterization is carried out in oxygen flow for several days. Three Ru-1212 samples were produced by varying the last sinterization time (two, four, and six days under oxygen flow).
Through measurements of x-ray diffraction, scanning electron microscopy, differential thermal analysis, magnetic susceptibility and mechanical spectroscopy, it was studied the influence of
the treatments under oxygen atmosphere on the structural and superconducting properties of the material.
Type of Medium:
Online Resource
ISSN:
1662-9752
DOI:
10.4028/www.scientific.net/MSF.530-531
DOI:
10.4028/www.scientific.net/MSF.530-531.550
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2006
detail.hit.zdb_id:
2047372-2
Permalink