The effect of ionic substitution on the E.P. of La2-xSrxCuO4 superconductor using madelung method
Author
Source
al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah
Issue
Vol. 22, Issue 1 (31 Mar. 2009), pp.78-92, 15 p.
Publisher
University of Mosul College of Education for Pure Science
Publication Date
2009-03-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Topics
Abstract EN
The effect of substitution of the ion 2 Sr instead of La+3 in the superconductor 2 4 La Sr CuO x x was studied, an increase in electrostatic potential energy E.
P.
(E) with increase of Sr % was noticed, and a step change in P.
E.
when Sr is added is noticed indicating a phase change occurrence in the crystal structure .Increase of Tc, with the increase of Sr, noticed earlier, is linked with increase of E.P.
and a relation between E.P.
and Tc is found 2 T 90.227 6.604E 1.545E c , the increase of Tc is due the creation of holes by valance difference between La & Sr, which also leads to collapse of crystal by reduction of repulsion between Sr & Cu atoms this have the same effect as the application of pressure on the crystal, which increases Tc also.
For x >0.15, Tc decreases due to the appearance of vacancies which may have screening effect of the electrostatic field.
American Psychological Association (APA)
Mustafa, Bassam Mahmud. 2009. The effect of ionic substitution on the E.P. of La2-xSrxCuO4 superconductor using madelung method. al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah،Vol. 22, no. 1, pp.78-92.
https://search.emarefa.net/detail/BIM-621222
Modern Language Association (MLA)
Mustafa, Bassam Mahmud. The effect of ionic substitution on the E.P. of La2-xSrxCuO4 superconductor using madelung method. al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah Vol. 22, no. 1 (Mar. 2009), pp.78-92.
https://search.emarefa.net/detail/BIM-621222
American Medical Association (AMA)
Mustafa, Bassam Mahmud. The effect of ionic substitution on the E.P. of La2-xSrxCuO4 superconductor using madelung method. al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah. 2009. Vol. 22, no. 1, pp.78-92.
https://search.emarefa.net/detail/BIM-621222
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 91-92
Record ID
BIM-621222