Abstract
The shift of K{sub {alpha}{sub 1}} and K{sub {beta}{sub 1}} X-ray lines of Pr in HTS-ceramic Bi{sub 1.7}Pb{sub 0.3}Sr{sub 2-x}Pr{sub x}Ca{sub 2}Cu{sub 3}O{sub y} (0,10{<=}x{<=}0,50, refer to PrF{sub 3}) are measured experimentally. The valence m(x), the charge q(x) and the 4f(x)-, 5d(x)-levels population of Pr are determined from experimental shifts. It is found that the Pr valence is near 3; the small valence increasing m{approx_equal}3,04 at x=0,1 is observed. The small of Pr 5d-electron localization in ceramics in comparison with PrF{sub 3} is revealed ({approx}0,1-0,2 5d-electron per Pr-atom). The probable cause of the superconductivity suppression in Y{sub 1-x}Pr{sub xB}a{sub 2}Cu{sub 3}O{sub 7-{delta}} system is discussed. 26 refs.; 6 figs.; 1 tab.
Citation Formats
Egorov, A I, Karazhanova, G I, Smirnov, Yu P, Sovestnov, A E, Tyunis, A V, and Shaburov, V A.
Electronic structure of Pr doped into superconducting Bi-Pb-Sr-Ca-Cu-O ceramics; Ehlektronnaya struktura Pr, dopirovannogo v sverkhprovodyashchuyu Bi-Pb-Sr-Ca-Cu-O keramiku.
Russian Federation: N. p.,
1992.
Web.
Egorov, A I, Karazhanova, G I, Smirnov, Yu P, Sovestnov, A E, Tyunis, A V, & Shaburov, V A.
Electronic structure of Pr doped into superconducting Bi-Pb-Sr-Ca-Cu-O ceramics; Ehlektronnaya struktura Pr, dopirovannogo v sverkhprovodyashchuyu Bi-Pb-Sr-Ca-Cu-O keramiku.
Russian Federation.
Egorov, A I, Karazhanova, G I, Smirnov, Yu P, Sovestnov, A E, Tyunis, A V, and Shaburov, V A.
1992.
"Electronic structure of Pr doped into superconducting Bi-Pb-Sr-Ca-Cu-O ceramics; Ehlektronnaya struktura Pr, dopirovannogo v sverkhprovodyashchuyu Bi-Pb-Sr-Ca-Cu-O keramiku."
Russian Federation.
@misc{etde_10113964,
title = {Electronic structure of Pr doped into superconducting Bi-Pb-Sr-Ca-Cu-O ceramics; Ehlektronnaya struktura Pr, dopirovannogo v sverkhprovodyashchuyu Bi-Pb-Sr-Ca-Cu-O keramiku}
author = {Egorov, A I, Karazhanova, G I, Smirnov, Yu P, Sovestnov, A E, Tyunis, A V, and Shaburov, V A}
abstractNote = {The shift of K{sub {alpha}{sub 1}} and K{sub {beta}{sub 1}} X-ray lines of Pr in HTS-ceramic Bi{sub 1.7}Pb{sub 0.3}Sr{sub 2-x}Pr{sub x}Ca{sub 2}Cu{sub 3}O{sub y} (0,10{<=}x{<=}0,50, refer to PrF{sub 3}) are measured experimentally. The valence m(x), the charge q(x) and the 4f(x)-, 5d(x)-levels population of Pr are determined from experimental shifts. It is found that the Pr valence is near 3; the small valence increasing m{approx_equal}3,04 at x=0,1 is observed. The small of Pr 5d-electron localization in ceramics in comparison with PrF{sub 3} is revealed ({approx}0,1-0,2 5d-electron per Pr-atom). The probable cause of the superconductivity suppression in Y{sub 1-x}Pr{sub xB}a{sub 2}Cu{sub 3}O{sub 7-{delta}} system is discussed. 26 refs.; 6 figs.; 1 tab.}
place = {Russian Federation}
year = {1992}
month = {Jul}
}
title = {Electronic structure of Pr doped into superconducting Bi-Pb-Sr-Ca-Cu-O ceramics; Ehlektronnaya struktura Pr, dopirovannogo v sverkhprovodyashchuyu Bi-Pb-Sr-Ca-Cu-O keramiku}
author = {Egorov, A I, Karazhanova, G I, Smirnov, Yu P, Sovestnov, A E, Tyunis, A V, and Shaburov, V A}
abstractNote = {The shift of K{sub {alpha}{sub 1}} and K{sub {beta}{sub 1}} X-ray lines of Pr in HTS-ceramic Bi{sub 1.7}Pb{sub 0.3}Sr{sub 2-x}Pr{sub x}Ca{sub 2}Cu{sub 3}O{sub y} (0,10{<=}x{<=}0,50, refer to PrF{sub 3}) are measured experimentally. The valence m(x), the charge q(x) and the 4f(x)-, 5d(x)-levels population of Pr are determined from experimental shifts. It is found that the Pr valence is near 3; the small valence increasing m{approx_equal}3,04 at x=0,1 is observed. The small of Pr 5d-electron localization in ceramics in comparison with PrF{sub 3} is revealed ({approx}0,1-0,2 5d-electron per Pr-atom). The probable cause of the superconductivity suppression in Y{sub 1-x}Pr{sub xB}a{sub 2}Cu{sub 3}O{sub 7-{delta}} system is discussed. 26 refs.; 6 figs.; 1 tab.}
place = {Russian Federation}
year = {1992}
month = {Jul}
}