Abstract
Recent studies indicate that the addition of nanoscale RE2 BaCuO5 (nmRE211) (RE=Y, Sm, and Nd) in melt-texture-grown Sm-Ba-Cu-O bulk material can enhance the critical current density (Jc), especially in high magnetic fields. It is known that the δ Tc pinning is the reason for high field peak effect in Jc -H curves. The Jc -H curves exhibit enhancement compared with those of undoped samples. The analysis of first derivations of R-T curves found two peaks in dRdT curves representing two characteristic temperatures in high magnetic fields, where the lower temperature is attributed to the weak superconducting phase. The relative strength of the two peaks varies with the concentration of nmY211 additions. This argument is consistent with microstructural observations and pinning analysis results.
| Original language | English |
|---|---|
| Article number | 08M508 |
| Journal | Journal of Applied Physics |
| Volume | 99 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2006 May 25 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Concentration effect on high field pinning and transport behaviors in nano- Y2 BaCuO5 doped Sm-Ba-Cu-O superconductor. / Chen, Shih Yun; Liao, Yang Chung; Chen, In Gann; Wu, Maw Kuen.
In: Journal of Applied Physics, Vol. 99, No. 8, 08M508, 25.05.2006.Research output: Contribution to journal › Article
TY - JOUR
T1 - Concentration effect on high field pinning and transport behaviors in nano- Y2 BaCuO5 doped Sm-Ba-Cu-O superconductor
AU - Chen, Shih Yun
AU - Liao, Yang Chung
AU - Chen, In Gann
AU - Wu, Maw Kuen
PY - 2006/5/25
Y1 - 2006/5/25
N2 - Recent studies indicate that the addition of nanoscale RE2 BaCuO5 (nmRE211) (RE=Y, Sm, and Nd) in melt-texture-grown Sm-Ba-Cu-O bulk material can enhance the critical current density (Jc), especially in high magnetic fields. It is known that the δ Tc pinning is the reason for high field peak effect in Jc -H curves. The Jc -H curves exhibit enhancement compared with those of undoped samples. The analysis of first derivations of R-T curves found two peaks in dRdT curves representing two characteristic temperatures in high magnetic fields, where the lower temperature is attributed to the weak superconducting phase. The relative strength of the two peaks varies with the concentration of nmY211 additions. This argument is consistent with microstructural observations and pinning analysis results.
AB - Recent studies indicate that the addition of nanoscale RE2 BaCuO5 (nmRE211) (RE=Y, Sm, and Nd) in melt-texture-grown Sm-Ba-Cu-O bulk material can enhance the critical current density (Jc), especially in high magnetic fields. It is known that the δ Tc pinning is the reason for high field peak effect in Jc -H curves. The Jc -H curves exhibit enhancement compared with those of undoped samples. The analysis of first derivations of R-T curves found two peaks in dRdT curves representing two characteristic temperatures in high magnetic fields, where the lower temperature is attributed to the weak superconducting phase. The relative strength of the two peaks varies with the concentration of nmY211 additions. This argument is consistent with microstructural observations and pinning analysis results.
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U2 - 10.1063/1.2177069
DO - 10.1063/1.2177069
M3 - Article
AN - SCOPUS:33646728356
VL - 99
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 8
M1 - 08M508
ER -