Peak effect in field trapping properties of large grain Dy-Ba-Cu-O/Ag bulk superconductors

S. Nariki; M. Murakami

doi:10.1016/S0921-4534(02)01538-1

Peak effect in field trapping properties of large grain Dy-Ba-Cu-O/Ag bulk superconductors

S. Nariki, M. Murakami

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

18 Citations (Scopus)

Abstract

The effect of Dy₂BaCuO₅ (Dy211) contents on the field trapping properties of Ag-added Dy-Ba-Cu-O single domain bulk has been investigated. The Dy-Ba-Cu-O/Ag bulks 32 mm in diameter with different Dy211 contents were fabricated in air with the top-seeded melt-growth method using NdBa₂Cu₃O₇ seed crystal. The field dependence of their trapped magnetic fields was measured using a Hall probe sensor at 77 K. In the case of the Dy-Ba-Cu-O bulk with excess 5 mol% of Dy211, the peak was found at around 1.5 T of external field in the trapped field measurement at 77 K. The value of trapped field was 1.2 T at the peak field. On the other hand, the Dy-Ba-Cu-O bulk with excess 40 mol% of Dy211 did not exhibit the peak effect. These results reflect the secondary peak effect in J_c-B properties of the bulk samples.

Original language	English
Pages (from-to)	759-763
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	378-381
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(02)01538-1
Publication status	Published - 2002 Oct 1
Externally published	Yes

Keywords

Critical current density
Dy-Ba-Cu-O
Melt processing
Trapped magnetic field

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/S0921-4534(02)01538-1

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@article{b5a30975c5144ed1ba821a56fdadf636,

title = "Peak effect in field trapping properties of large grain Dy-Ba-Cu-O/Ag bulk superconductors",

abstract = "The effect of Dy2BaCuO5 (Dy211) contents on the field trapping properties of Ag-added Dy-Ba-Cu-O single domain bulk has been investigated. The Dy-Ba-Cu-O/Ag bulks 32 mm in diameter with different Dy211 contents were fabricated in air with the top-seeded melt-growth method using NdBa2Cu3O7 seed crystal. The field dependence of their trapped magnetic fields was measured using a Hall probe sensor at 77 K. In the case of the Dy-Ba-Cu-O bulk with excess 5 mol% of Dy211, the peak was found at around 1.5 T of external field in the trapped field measurement at 77 K. The value of trapped field was 1.2 T at the peak field. On the other hand, the Dy-Ba-Cu-O bulk with excess 40 mol% of Dy211 did not exhibit the peak effect. These results reflect the secondary peak effect in Jc-B properties of the bulk samples.",

keywords = "Critical current density, Dy-Ba-Cu-O, Melt processing, Trapped magnetic field",

author = "S. Nariki and M. Murakami",

note = "Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as collaborative research and development of fundamental technologies for superconductivity applications.",

year = "2002",

month = oct,

day = "1",

doi = "10.1016/S0921-4534(02)01538-1",

language = "English",

volume = "378-381",

pages = "759--763",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "PART 1",

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TY - JOUR

T1 - Peak effect in field trapping properties of large grain Dy-Ba-Cu-O/Ag bulk superconductors

AU - Nariki, S.

AU - Murakami, M.

N1 - Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as collaborative research and development of fundamental technologies for superconductivity applications.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - The effect of Dy2BaCuO5 (Dy211) contents on the field trapping properties of Ag-added Dy-Ba-Cu-O single domain bulk has been investigated. The Dy-Ba-Cu-O/Ag bulks 32 mm in diameter with different Dy211 contents were fabricated in air with the top-seeded melt-growth method using NdBa2Cu3O7 seed crystal. The field dependence of their trapped magnetic fields was measured using a Hall probe sensor at 77 K. In the case of the Dy-Ba-Cu-O bulk with excess 5 mol% of Dy211, the peak was found at around 1.5 T of external field in the trapped field measurement at 77 K. The value of trapped field was 1.2 T at the peak field. On the other hand, the Dy-Ba-Cu-O bulk with excess 40 mol% of Dy211 did not exhibit the peak effect. These results reflect the secondary peak effect in Jc-B properties of the bulk samples.

AB - The effect of Dy2BaCuO5 (Dy211) contents on the field trapping properties of Ag-added Dy-Ba-Cu-O single domain bulk has been investigated. The Dy-Ba-Cu-O/Ag bulks 32 mm in diameter with different Dy211 contents were fabricated in air with the top-seeded melt-growth method using NdBa2Cu3O7 seed crystal. The field dependence of their trapped magnetic fields was measured using a Hall probe sensor at 77 K. In the case of the Dy-Ba-Cu-O bulk with excess 5 mol% of Dy211, the peak was found at around 1.5 T of external field in the trapped field measurement at 77 K. The value of trapped field was 1.2 T at the peak field. On the other hand, the Dy-Ba-Cu-O bulk with excess 40 mol% of Dy211 did not exhibit the peak effect. These results reflect the secondary peak effect in Jc-B properties of the bulk samples.

KW - Critical current density

KW - Dy-Ba-Cu-O

KW - Melt processing

KW - Trapped magnetic field

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U2 - 10.1016/S0921-4534(02)01538-1

DO - 10.1016/S0921-4534(02)01538-1

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SN - 0921-4534

VL - 378-381

SP - 759

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 1

ER -

Peak effect in field trapping properties of large grain Dy-Ba-Cu-O/Ag bulk superconductors

Abstract

Keywords

ASJC Scopus subject areas

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