Effects of oxygen content on the superconducting properties of melt-textured LRE123 superconductors

N. Chikumoto; S. Ozawa; S. I. Yoo; N. Hayashi; M. Murakami

doi:10.1016/S0921-4534(97)00115-9

Effects of oxygen content on the superconducting properties of melt-textured LRE123 superconductors

N. Chikumoto, S. Ozawa, S. I. Yoo, N. Hayashi, M. Murakami

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

27 Citations (Scopus)

Abstract

The effects of oxygen content on the superconducting transition temperatures, T_c, and magnetic properties of melt-textured LRE123 (LRE = Nd, Sm) superconductors were studied. The oxygen content could be varied by changing the annealing temperature, T_a, in that the oxygen deficiency, δ, monotonically decreased with decreasing the T_a from 600°C to 300°C. A further decrease of T_a to 275°C showed no appreciable change. In both systems the highest T_c was obtained for the samples annealed at 300°C. Magnetic properties were also strongly dependent on the oxygen content, showing that the control of oxygen content is critical for achieving good pinning properties.

Original language	English
Pages (from-to)	187-191
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	278
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(97)00115-9
Publication status	Published - 1997 May 1
Externally published	Yes

Keywords

Critical current density
Irreversibility field
LRE123
Melt-processing
Oxygen deficiency
Peak effect

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4534(97)00115-9

Fingerprint Dive into the research topics of 'Effects of oxygen content on the superconducting properties of melt-textured LRE123 superconductors'. Together they form a unique fingerprint.

Cite this

@article{5314b8f78cd447629a8bfc52b31f2673,

title = "Effects of oxygen content on the superconducting properties of melt-textured LRE123 superconductors",

abstract = "The effects of oxygen content on the superconducting transition temperatures, Tc, and magnetic properties of melt-textured LRE123 (LRE = Nd, Sm) superconductors were studied. The oxygen content could be varied by changing the annealing temperature, Ta, in that the oxygen deficiency, δ, monotonically decreased with decreasing the Ta from 600°C to 300°C. A further decrease of Ta to 275°C showed no appreciable change. In both systems the highest Tc was obtained for the samples annealed at 300°C. Magnetic properties were also strongly dependent on the oxygen content, showing that the control of oxygen content is critical for achieving good pinning properties.",

keywords = "Critical current density, Irreversibility field, LRE123, Melt-processing, Oxygen deficiency, Peak effect",

author = "N. Chikumoto and S. Ozawa and Yoo, {S. I.} and N. Hayashi and M. Murakami",

year = "1997",

month = may,

day = "1",

doi = "10.1016/S0921-4534(97)00115-9",

language = "English",

volume = "278",

pages = "187--191",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Effects of oxygen content on the superconducting properties of melt-textured LRE123 superconductors

AU - Chikumoto, N.

AU - Ozawa, S.

AU - Yoo, S. I.

AU - Hayashi, N.

AU - Murakami, M.

PY - 1997/5/1

Y1 - 1997/5/1

N2 - The effects of oxygen content on the superconducting transition temperatures, Tc, and magnetic properties of melt-textured LRE123 (LRE = Nd, Sm) superconductors were studied. The oxygen content could be varied by changing the annealing temperature, Ta, in that the oxygen deficiency, δ, monotonically decreased with decreasing the Ta from 600°C to 300°C. A further decrease of Ta to 275°C showed no appreciable change. In both systems the highest Tc was obtained for the samples annealed at 300°C. Magnetic properties were also strongly dependent on the oxygen content, showing that the control of oxygen content is critical for achieving good pinning properties.

AB - The effects of oxygen content on the superconducting transition temperatures, Tc, and magnetic properties of melt-textured LRE123 (LRE = Nd, Sm) superconductors were studied. The oxygen content could be varied by changing the annealing temperature, Ta, in that the oxygen deficiency, δ, monotonically decreased with decreasing the Ta from 600°C to 300°C. A further decrease of Ta to 275°C showed no appreciable change. In both systems the highest Tc was obtained for the samples annealed at 300°C. Magnetic properties were also strongly dependent on the oxygen content, showing that the control of oxygen content is critical for achieving good pinning properties.

KW - Critical current density

KW - Irreversibility field

KW - LRE123

KW - Melt-processing

KW - Oxygen deficiency

KW - Peak effect

UR - http://www.scopus.com/inward/record.url?scp=0031142432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031142432&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(97)00115-9

DO - 10.1016/S0921-4534(97)00115-9

M3 - Article

AN - SCOPUS:0031142432

VL - 278

SP - 187

EP - 191

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 3-4

ER -