A new technique for pinning enhancement in ternary REBa2Cu3Oy systems

M. Muralidhar; M. Murakami

doi:10.1016/S0921-4534(02)01509-5

A new technique for pinning enhancement in ternary REBa₂Cu₃O_y systems

M. Muralidhar, M. Murakami

Research output: Contribution to journal › Article

11 Citations (Scopus)

Abstract

We have studied the effects of sub-micron Gd₂BaCuO₅ (Gd-211) particles on the microstructure and the magnetic properties of ternary melt-textured superconductors (Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu₃O_y, (Nd_0.33Sm_0.33Gd_0.33)Ba₂Cu₃O_y, and (Sm_0.33Eu_0.33Gd_0.33)Ba₂Cu₃O_y. High-resolution transmission electron microscopic observations showed that there is strong compositional fluctuation in the REBa₂Cu₃O_y matrix, and the RE rich clusters 3-10 nm in size are distributed in the matrix, which are the candidates for pinning centers. Magnetization measurements revealed that a strongly developed fishtail is observed in all the samples. The peak position, its height, and irreversibility field is dependent on the chemical composition. The NSG-123 sample with 10 mol% Gd-211 exhibited the critical current density of 100 kAcm^-2 at 77 K and 2 T for H∥c-axis.

Original language	English
Pages (from-to)	627-630
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	378-381
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(02)01509-5
Publication status	Published - 2002 Oct 1

Fingerprint

Keywords

Critical current density
Flux pinning
Gd-211
Melt-textured
REBaCuO

ASJC Scopus subject areas

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

Cite this

Muralidhar, M., & Murakami, M. (2002). A new technique for pinning enhancement in ternary REBa₂Cu₃O_y systems. Physica C: Superconductivity and its applications, 378-381(PART 1), 627-630. https://doi.org/10.1016/S0921-4534(02)01509-5

@article{1fb2e6d6162f4672b40627af16af38d0,

title = "A new technique for pinning enhancement in ternary REBa2Cu3Oy systems",

abstract = "We have studied the effects of sub-micron Gd2BaCuO5 (Gd-211) particles on the microstructure and the magnetic properties of ternary melt-textured superconductors (Nd0.33Eu0.33Gd0.33)Ba2Cu3 Oy, (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy, and (Sm0.33Eu0.33Gd0.33)Ba2Cu3 Oy. High-resolution transmission electron microscopic observations showed that there is strong compositional fluctuation in the REBa2Cu3Oy matrix, and the RE rich clusters 3-10 nm in size are distributed in the matrix, which are the candidates for pinning centers. Magnetization measurements revealed that a strongly developed fishtail is observed in all the samples. The peak position, its height, and irreversibility field is dependent on the chemical composition. The NSG-123 sample with 10 mol% Gd-211 exhibited the critical current density of 100 kAcm-2 at 77 K and 2 T for H∥c-axis.",

keywords = "Critical current density, Flux pinning, Gd-211, Melt-textured, REBaCuO",

author = "M. Muralidhar and M. Murakami",

year = "2002",

month = oct

day = "1",

doi = "10.1016/S0921-4534(02)01509-5",

language = "English",

volume = "378-381",

pages = "627--630",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "PART 1",

}

TY - JOUR

T1 - A new technique for pinning enhancement in ternary REBa2Cu3Oy systems

AU - Muralidhar, M.

AU - Murakami, M.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - We have studied the effects of sub-micron Gd2BaCuO5 (Gd-211) particles on the microstructure and the magnetic properties of ternary melt-textured superconductors (Nd0.33Eu0.33Gd0.33)Ba2Cu3 Oy, (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy, and (Sm0.33Eu0.33Gd0.33)Ba2Cu3 Oy. High-resolution transmission electron microscopic observations showed that there is strong compositional fluctuation in the REBa2Cu3Oy matrix, and the RE rich clusters 3-10 nm in size are distributed in the matrix, which are the candidates for pinning centers. Magnetization measurements revealed that a strongly developed fishtail is observed in all the samples. The peak position, its height, and irreversibility field is dependent on the chemical composition. The NSG-123 sample with 10 mol% Gd-211 exhibited the critical current density of 100 kAcm-2 at 77 K and 2 T for H∥c-axis.

AB - We have studied the effects of sub-micron Gd2BaCuO5 (Gd-211) particles on the microstructure and the magnetic properties of ternary melt-textured superconductors (Nd0.33Eu0.33Gd0.33)Ba2Cu3 Oy, (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy, and (Sm0.33Eu0.33Gd0.33)Ba2Cu3 Oy. High-resolution transmission electron microscopic observations showed that there is strong compositional fluctuation in the REBa2Cu3Oy matrix, and the RE rich clusters 3-10 nm in size are distributed in the matrix, which are the candidates for pinning centers. Magnetization measurements revealed that a strongly developed fishtail is observed in all the samples. The peak position, its height, and irreversibility field is dependent on the chemical composition. The NSG-123 sample with 10 mol% Gd-211 exhibited the critical current density of 100 kAcm-2 at 77 K and 2 T for H∥c-axis.

KW - Critical current density

KW - Flux pinning

KW - Gd-211

KW - Melt-textured

KW - REBaCuO

UR - http://www.scopus.com/inward/record.url?scp=17644433373&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17644433373&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(02)01509-5

DO - 10.1016/S0921-4534(02)01509-5

M3 - Article

AN - SCOPUS:17644433373

VL - 378-381

SP - 627

EP - 630

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - PART 1

ER -

Access to Document

10.1016/S0921-4534(02)01509-5