Superconducting properties of bulk YBa2Cu3O7-y prepared by a quench and melt growth process

M. Morita; M. Murakami; K. Miyamoto; K. Sawano; S. Matsuda

doi:10.1016/0921-4534(89)90661-8

Superconducting properties of bulk YBa₂Cu₃O_7-y prepared by a quench and melt growth process

M. Morita, M. Murakami, K. Miyamoto, K. Sawano, S. Matsuda

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

14 Citations (Scopus)

Abstract

Large crystals of YBa₂CuO₃O_7-y were undirectionally and continuously grown by a modified Quench and Melt Growth (QMG) process with a temperature gradient. Superconducting properties of these crystals were measured. Samples prepared by a conventional QMG process without a temperature gradient have high critical current density (Jc) values exceeding 10⁴A/cm² at 1T and 77K. However, crystals prepared by this process without a temperature gradient were small, i.e. 30mm²×1mm. We modified the QMG method to grow superconducting crystals using a temperature gradient, and obtained large crystals up to 200mm²×1.5mm. It was found that superconducting current flowed throughout the crystal. A Jc value as high as conventional QMG processed materials was confirmed by the magnetic induced field method.

Original language	English
Pages (from-to)	1217-1218
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	162-164
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(89)90661-8
Publication status	Published - 1989 Dec
Externally published	Yes

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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10.1016/0921-4534(89)90661-8

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title = "Superconducting properties of bulk YBa2Cu3O7-y prepared by a quench and melt growth process",

abstract = "Large crystals of YBa2CuO3O7-y were undirectionally and continuously grown by a modified Quench and Melt Growth (QMG) process with a temperature gradient. Superconducting properties of these crystals were measured. Samples prepared by a conventional QMG process without a temperature gradient have high critical current density (Jc) values exceeding 104A/cm2 at 1T and 77K. However, crystals prepared by this process without a temperature gradient were small, i.e. 30mm2×1mm. We modified the QMG method to grow superconducting crystals using a temperature gradient, and obtained large crystals up to 200mm2×1.5mm. It was found that superconducting current flowed throughout the crystal. A Jc value as high as conventional QMG processed materials was confirmed by the magnetic induced field method.",

author = "M. Morita and M. Murakami and K. Miyamoto and K. Sawano and S. Matsuda",

note = "Funding Information: 4. ACKN(~ We would like to thank Dr. Kanbara of Tokyo Industries Inc. for Jc measurements. A part of this study was supported by Tokyo Industries Inc.",

year = "1989",

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doi = "10.1016/0921-4534(89)90661-8",

language = "English",

volume = "162-164",

pages = "1217--1218",

journal = "Physica C: Superconductivity and its Applications",

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T1 - Superconducting properties of bulk YBa2Cu3O7-y prepared by a quench and melt growth process

AU - Morita, M.

AU - Murakami, M.

AU - Miyamoto, K.

AU - Sawano, K.

AU - Matsuda, S.

N1 - Funding Information: 4. ACKN(~ We would like to thank Dr. Kanbara of Tokyo Industries Inc. for Jc measurements. A part of this study was supported by Tokyo Industries Inc.

PY - 1989/12

Y1 - 1989/12

N2 - Large crystals of YBa2CuO3O7-y were undirectionally and continuously grown by a modified Quench and Melt Growth (QMG) process with a temperature gradient. Superconducting properties of these crystals were measured. Samples prepared by a conventional QMG process without a temperature gradient have high critical current density (Jc) values exceeding 104A/cm2 at 1T and 77K. However, crystals prepared by this process without a temperature gradient were small, i.e. 30mm2×1mm. We modified the QMG method to grow superconducting crystals using a temperature gradient, and obtained large crystals up to 200mm2×1.5mm. It was found that superconducting current flowed throughout the crystal. A Jc value as high as conventional QMG processed materials was confirmed by the magnetic induced field method.

AB - Large crystals of YBa2CuO3O7-y were undirectionally and continuously grown by a modified Quench and Melt Growth (QMG) process with a temperature gradient. Superconducting properties of these crystals were measured. Samples prepared by a conventional QMG process without a temperature gradient have high critical current density (Jc) values exceeding 104A/cm2 at 1T and 77K. However, crystals prepared by this process without a temperature gradient were small, i.e. 30mm2×1mm. We modified the QMG method to grow superconducting crystals using a temperature gradient, and obtained large crystals up to 200mm2×1.5mm. It was found that superconducting current flowed throughout the crystal. A Jc value as high as conventional QMG processed materials was confirmed by the magnetic induced field method.

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IS - PART 2

ER -

Superconducting properties of bulk YBa₂Cu₃O_7-y prepared by a quench and melt growth process

Abstract

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