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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

Technical Report:

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.
Publication Date:
Jul 01, 1992
Product Type:
Technical Report
Report Number:
PIYaF-1814
Reference Number:
SCA: 665100; PA: AIX-25:008007; EDB-94:016346; ERA-19:007759; NTS-94:014857; SN: 94001127269
Resource Relation:
Other Information: PBD: Jul 1992
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CUPRATES; PRASEODYMIUM ADDITIONS; SUPERCONDUCTIVITY; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; ELECTRIC CHARGES; ELECTRONIC STRUCTURE; HIGH-TC SUPERCONDUCTORS; LEAD COMPOUNDS; STRONTIUM COMPOUNDS; VALENCE; X-RAY SPECTRA; 665100; NUCLEAR TECHNIQUES IN CONDENSED MATTER PHYSICS
OSTI ID:
10113964
Research Organizations:
AN SSSR, Leningrad (Russian Federation). Inst. Yadernoj Fiziki
Country of Origin:
Russian Federation
Language:
Russian
Other Identifying Numbers:
Other: ON: DE94611523; TRN: RU9305713008007
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
17 p.
Announcement Date:
Jun 30, 2005

Technical Report:

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}
}