Synthesis of (CaxLa1.00-x)(Ba1.75-xLa0.25+x)Cu 3Oz tetragonal superconductor by amorphous metal complex method

Yasushi Sato; Valery Petrykin; Masato Kakihana; Minoru Osada; Ai Yamaguchi; Shinjiro Tochihara; Yoshito Tanaka; Hiroshi Yasuoka; Hiromasa Mazaki

doi:10.1016/S0167-2738(02)00727-0

Synthesis of (Ca_xLa_1.00-x)(Ba_1.75-xLa_0.25+x)Cu ₃O_z tetragonal superconductor by amorphous metal complex method

Yasushi Sato, Valery Petrykin, Masato Kakihana^*, Minoru Osada, Ai Yamaguchi, Shinjiro Tochihara, Yoshito Tanaka, Hiroshi Yasuoka, Hiromasa Mazaki

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Polycrystalline samples of tetragonal superconducting (Ca_xLa_1.00-x)(Ba_1.75-xLa_0.25+x)Cu ₃O_z isostructural to YBa₂Cu₃O_7-δ were prepared by a simple aqueous solution technique using citric acid (CA). The results of both X-ray diffraction (XRD) and Raman scattering analyses indicated that the polycrystalline samples for the Ca content (x) from 0.1 to 1.0 were of single phase with respect to superconductivity and isostructural to tetragonal YBa₂Cu₃O_7-δ phase. The dependence of T_c onset values for (x) from 0.1 to 1.0, determined precisely from the ac complex magnetic susceptibility measurements, had a "bell-shaped" character. The values increased from 39.6 K for x = 0.1 to 78.7 K for x = 0.4, remained almost constant at 80 K between x = 0.5 and x = 0.6, and then decreased to 44.6 K for x = 1.0.

Original language	English
Pages (from-to)	299-304
Number of pages	6
Journal	Solid State Ionics
Volume	151
Issue number	1-4
DOIs	https://doi.org/10.1016/S0167-2738(02)00727-0
Publication status	Published - 2002 Nov
Externally published	Yes

Keywords

(CaLa)(BaLa) CuO
Ac complex susceptibility
Amorphous citrate method
Raman scattering

ASJC Scopus subject areas

Electrochemistry
Physical and Theoretical Chemistry
Energy Engineering and Power Technology
Materials Chemistry
Condensed Matter Physics

Access to Document

10.1016/S0167-2738(02)00727-0

Cite this

@article{4109d41d1dd342adaca75fb1f488b96b,

title = "Synthesis of (CaxLa1.00-x)(Ba1.75-xLa0.25+x)Cu 3Oz tetragonal superconductor by amorphous metal complex method",

abstract = "Polycrystalline samples of tetragonal superconducting (CaxLa1.00-x)(Ba1.75-xLa0.25+x)Cu 3Oz isostructural to YBa2Cu3O7-δ were prepared by a simple aqueous solution technique using citric acid (CA). The results of both X-ray diffraction (XRD) and Raman scattering analyses indicated that the polycrystalline samples for the Ca content (x) from 0.1 to 1.0 were of single phase with respect to superconductivity and isostructural to tetragonal YBa2Cu3O7-δ phase. The dependence of Tc onset values for (x) from 0.1 to 1.0, determined precisely from the ac complex magnetic susceptibility measurements, had a {"}bell-shaped{"} character. The values increased from 39.6 K for x = 0.1 to 78.7 K for x = 0.4, remained almost constant at 80 K between x = 0.5 and x = 0.6, and then decreased to 44.6 K for x = 1.0.",

keywords = "(CaLa)(BaLa) CuO, Ac complex susceptibility, Amorphous citrate method, Raman scattering",

author = "Yasushi Sato and Valery Petrykin and Masato Kakihana and Minoru Osada and Ai Yamaguchi and Shinjiro Tochihara and Yoshito Tanaka and Hiroshi Yasuoka and Hiromasa Mazaki",

year = "2002",

month = nov,

doi = "10.1016/S0167-2738(02)00727-0",

language = "English",

volume = "151",

pages = "299--304",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - Synthesis of (CaxLa1.00-x)(Ba1.75-xLa0.25+x)Cu 3Oz tetragonal superconductor by amorphous metal complex method

AU - Sato, Yasushi

AU - Petrykin, Valery

AU - Kakihana, Masato

AU - Osada, Minoru

AU - Yamaguchi, Ai

AU - Tochihara, Shinjiro

AU - Tanaka, Yoshito

AU - Yasuoka, Hiroshi

AU - Mazaki, Hiromasa

PY - 2002/11

Y1 - 2002/11

N2 - Polycrystalline samples of tetragonal superconducting (CaxLa1.00-x)(Ba1.75-xLa0.25+x)Cu 3Oz isostructural to YBa2Cu3O7-δ were prepared by a simple aqueous solution technique using citric acid (CA). The results of both X-ray diffraction (XRD) and Raman scattering analyses indicated that the polycrystalline samples for the Ca content (x) from 0.1 to 1.0 were of single phase with respect to superconductivity and isostructural to tetragonal YBa2Cu3O7-δ phase. The dependence of Tc onset values for (x) from 0.1 to 1.0, determined precisely from the ac complex magnetic susceptibility measurements, had a "bell-shaped" character. The values increased from 39.6 K for x = 0.1 to 78.7 K for x = 0.4, remained almost constant at 80 K between x = 0.5 and x = 0.6, and then decreased to 44.6 K for x = 1.0.

AB - Polycrystalline samples of tetragonal superconducting (CaxLa1.00-x)(Ba1.75-xLa0.25+x)Cu 3Oz isostructural to YBa2Cu3O7-δ were prepared by a simple aqueous solution technique using citric acid (CA). The results of both X-ray diffraction (XRD) and Raman scattering analyses indicated that the polycrystalline samples for the Ca content (x) from 0.1 to 1.0 were of single phase with respect to superconductivity and isostructural to tetragonal YBa2Cu3O7-δ phase. The dependence of Tc onset values for (x) from 0.1 to 1.0, determined precisely from the ac complex magnetic susceptibility measurements, had a "bell-shaped" character. The values increased from 39.6 K for x = 0.1 to 78.7 K for x = 0.4, remained almost constant at 80 K between x = 0.5 and x = 0.6, and then decreased to 44.6 K for x = 1.0.

KW - (CaLa)(BaLa) CuO

KW - Ac complex susceptibility

KW - Amorphous citrate method

KW - Raman scattering

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