Abstract
The optimisation of ternary (Nd-Eu-Gd)Ba2Cu3Oy (NEG) bulk quasi-crystals has been carried out to achieve high pinning at 77 K. For this purpose we prepared samples with various Nd:Eu:Gd ratios in the NEG compound. Our experimental results suggest that a suitable combination of the three elements on the rare earth site can enhance flux pinning at low, intermediate, and high magnetic fields. This is thus an effective tool for tailoring properties of this material according to requirements of the particular application. We show that the maximum flux pinning can be achieved in the whole magnetic field range (at 77 K) when very fine (sub-micron) secondary phase particles are dispersed in a superconducting 123 matrix with an optimum Nd:Eu:Gd ratio.
| Original language | English |
|---|---|
| Pages (from-to) | 750-754 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 378-381 |
| Issue number | PART 1 |
| DOIs | |
| Publication status | Published - 2002 Oct 1 |
| Externally published | Yes |
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Keywords
- Critical current density (J)
- Flux pinning
- Matrix chemical ratio
- NEG-123
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
High flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3Oy superconductors at 77 K. / Miryala, Muralidhar; Jirsa, M.; Sakai, Naomichi; Murakami, Masato.
In: Physica C: Superconductivity and its Applications, Vol. 378-381, No. PART 1, 01.10.2002, p. 750-754.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3Oy superconductors at 77 K
AU - Miryala, Muralidhar
AU - Jirsa, M.
AU - Sakai, Naomichi
AU - Murakami, Masato
PY - 2002/10/1
Y1 - 2002/10/1
N2 - The optimisation of ternary (Nd-Eu-Gd)Ba2Cu3Oy (NEG) bulk quasi-crystals has been carried out to achieve high pinning at 77 K. For this purpose we prepared samples with various Nd:Eu:Gd ratios in the NEG compound. Our experimental results suggest that a suitable combination of the three elements on the rare earth site can enhance flux pinning at low, intermediate, and high magnetic fields. This is thus an effective tool for tailoring properties of this material according to requirements of the particular application. We show that the maximum flux pinning can be achieved in the whole magnetic field range (at 77 K) when very fine (sub-micron) secondary phase particles are dispersed in a superconducting 123 matrix with an optimum Nd:Eu:Gd ratio.
AB - The optimisation of ternary (Nd-Eu-Gd)Ba2Cu3Oy (NEG) bulk quasi-crystals has been carried out to achieve high pinning at 77 K. For this purpose we prepared samples with various Nd:Eu:Gd ratios in the NEG compound. Our experimental results suggest that a suitable combination of the three elements on the rare earth site can enhance flux pinning at low, intermediate, and high magnetic fields. This is thus an effective tool for tailoring properties of this material according to requirements of the particular application. We show that the maximum flux pinning can be achieved in the whole magnetic field range (at 77 K) when very fine (sub-micron) secondary phase particles are dispersed in a superconducting 123 matrix with an optimum Nd:Eu:Gd ratio.
KW - Critical current density (J)
KW - Flux pinning
KW - Matrix chemical ratio
KW - NEG-123
UR - http://www.scopus.com/inward/record.url?scp=18744425304&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18744425304&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(02)01536-8
DO - 10.1016/S0921-4534(02)01536-8
M3 - Article
AN - SCOPUS:18744425304
VL - 378-381
SP - 750
EP - 754
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 1
ER -