ANNEALING EFFECTS ON SUPERCONDUCTIVITY AND ELECTRONIC STATES OF BI2SR2CA(CU(1-X)GO(X))(2)O-Y

Authors
FUKUDA Y SANADA N NAKADAIRA T SHIMOMURA M NAGOSHI M SYONO Y TACHIKI M
Citation
Y. Fukuda et al., ANNEALING EFFECTS ON SUPERCONDUCTIVITY AND ELECTRONIC STATES OF BI2SR2CA(CU(1-X)GO(X))(2)O-Y, Physica. C, Superconductivity, 235, 1994, pp. 935-936
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
2
Pages
935 - 936
Database
ISI
SICI code
0921-4534(1994)235:<935:AEOSAE>2.0.ZU;2-Q
Abstract
We find that although T-c of Bi2Sr2Ca(Cu1-xCox)(2)O-y (0 less than or equal to x less than or equal to 0.1) samples decreases monotonously w ith increase of x, it increases by 10-30 K upon annealing in vacuum. I nverse photoemission spectroscopy (IPES) result indicates that the int ensity of unoccupied 0 2p states at Fermi level for the samples is dec reased upon annealing. Roles of annealing and CO substitution in the s amples are discussed.