Phase separation of Nd1+xBa2-xCu3O6+δ during annealing processing

M. Yoshizumi; Y. Nakamura; T. Izumi; Y. Shiohara; Y. Ikuhara; T. Sakuma

doi:10.1016/S0921-4534(01)00244-1

Phase separation of Nd_1+xBa_2-xCu₃O_6+δ during annealing processing

M. Yoshizumi, Y. Nakamura, T. Izumi, Y. Shiohara, Y. Ikuhara, T. Sakuma

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

15 Citations (Scopus)

Abstract

In order to investigate phase separation in solid, Nd_1+xBa_2-xCu₃O_6+δ powders with different compositions were annealed under different annealing conditions. The temperature - substitution ratio - oxygen content phase diagram of Nd_1+xBa_2-xCu₃O_6+δ solid solution (Nd123ss) was constructed. The condition to occur Nd123ss phase separation was clarified by investigating the compositional fluctuation, XRD pattern, the time dependences of T_c properties and oxygen content. Consequently, only orthorhombic phase with small x can separate into two orthorhombic phases with larger and smaller x by the spinodal decomposition mechanism.

Original language	English
Pages (from-to)	354-358
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	357-360
DOIs	https://doi.org/10.1016/S0921-4534(01)00244-1
Publication status	Published - 2001 Aug

Keywords

NdBaCuO
Phase diagram
Phase separation
Solid solution

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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abstract = "In order to investigate phase separation in solid, Nd1+xBa2-xCu3O6+δ powders with different compositions were annealed under different annealing conditions. The temperature - substitution ratio - oxygen content phase diagram of Nd1+xBa2-xCu3O6+δ solid solution (Nd123ss) was constructed. The condition to occur Nd123ss phase separation was clarified by investigating the compositional fluctuation, XRD pattern, the time dependences of Tc properties and oxygen content. Consequently, only orthorhombic phase with small x can separate into two orthorhombic phases with larger and smaller x by the spinodal decomposition mechanism.",

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T1 - Phase separation of Nd1+xBa2-xCu3O6+δ during annealing processing

AU - Yoshizumi, M.

AU - Nakamura, Y.

AU - Izumi, T.

AU - Shiohara, Y.

AU - Ikuhara, Y.

AU - Sakuma, T.

PY - 2001/8

Y1 - 2001/8

N2 - In order to investigate phase separation in solid, Nd1+xBa2-xCu3O6+δ powders with different compositions were annealed under different annealing conditions. The temperature - substitution ratio - oxygen content phase diagram of Nd1+xBa2-xCu3O6+δ solid solution (Nd123ss) was constructed. The condition to occur Nd123ss phase separation was clarified by investigating the compositional fluctuation, XRD pattern, the time dependences of Tc properties and oxygen content. Consequently, only orthorhombic phase with small x can separate into two orthorhombic phases with larger and smaller x by the spinodal decomposition mechanism.

AB - In order to investigate phase separation in solid, Nd1+xBa2-xCu3O6+δ powders with different compositions were annealed under different annealing conditions. The temperature - substitution ratio - oxygen content phase diagram of Nd1+xBa2-xCu3O6+δ solid solution (Nd123ss) was constructed. The condition to occur Nd123ss phase separation was clarified by investigating the compositional fluctuation, XRD pattern, the time dependences of Tc properties and oxygen content. Consequently, only orthorhombic phase with small x can separate into two orthorhombic phases with larger and smaller x by the spinodal decomposition mechanism.

KW - NdBaCuO

KW - Phase diagram

KW - Phase separation

KW - Solid solution

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