Abstract
Ti, Zr and Hf doped MgB2 polycrystalline samples have been prepared by using a hot pressing technique. In Ti doped MgB2, it was found that the optimum concentration of Ti for the critical current density Jc was 5% and Jc value was improved from 1.9×10 5 A/cm2 (Ti 0%) to 5.6×105 A/cm 2 (Ti 5%) in self-field at 10 K. Jc values were also improved to 5.0×105 A/cm2 with 2% Zr doping and to 4.8×105 A/cm2 with 1% Hf doping. We found that the improvement of the irreversibility field Birr with Zr and Hf doping was larger than that of Ti doping.
| Original language | English |
|---|---|
| Pages (from-to) | 272-275 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 392-396 |
| Issue number | PART 1 |
| DOIs | |
| Publication status | Published - 2003 Oct |
| Externally published | Yes |
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Keywords
- MgB
- Pinning properties
- Superconductivity
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Improvement of critical current density in MgB2 by Ti, Zr and Hf doping. / Goto, D.; Machi, T.; Zhao, Y.; Koshizuka, N.; Murakami, Masato; Arai, S.
In: Physica C: Superconductivity and its Applications, Vol. 392-396, No. PART 1, 10.2003, p. 272-275.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Improvement of critical current density in MgB2 by Ti, Zr and Hf doping
AU - Goto, D.
AU - Machi, T.
AU - Zhao, Y.
AU - Koshizuka, N.
AU - Murakami, Masato
AU - Arai, S.
PY - 2003/10
Y1 - 2003/10
N2 - Ti, Zr and Hf doped MgB2 polycrystalline samples have been prepared by using a hot pressing technique. In Ti doped MgB2, it was found that the optimum concentration of Ti for the critical current density Jc was 5% and Jc value was improved from 1.9×10 5 A/cm2 (Ti 0%) to 5.6×105 A/cm 2 (Ti 5%) in self-field at 10 K. Jc values were also improved to 5.0×105 A/cm2 with 2% Zr doping and to 4.8×105 A/cm2 with 1% Hf doping. We found that the improvement of the irreversibility field Birr with Zr and Hf doping was larger than that of Ti doping.
AB - Ti, Zr and Hf doped MgB2 polycrystalline samples have been prepared by using a hot pressing technique. In Ti doped MgB2, it was found that the optimum concentration of Ti for the critical current density Jc was 5% and Jc value was improved from 1.9×10 5 A/cm2 (Ti 0%) to 5.6×105 A/cm 2 (Ti 5%) in self-field at 10 K. Jc values were also improved to 5.0×105 A/cm2 with 2% Zr doping and to 4.8×105 A/cm2 with 1% Hf doping. We found that the improvement of the irreversibility field Birr with Zr and Hf doping was larger than that of Ti doping.
KW - MgB
KW - Pinning properties
KW - Superconductivity
UR - http://www.scopus.com/inward/record.url?scp=0042190319&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0042190319&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(03)01081-5
DO - 10.1016/S0921-4534(03)01081-5
M3 - Article
AN - SCOPUS:0042190319
VL - 392-396
SP - 272
EP - 275
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 1
ER -