Abstract
We have studied the effect of nonsuperconducting inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ (R=Nd and Yb) bulk superconductor in a high - temperature region (77≤T ≤90 K). It is found that nonsuperconducting inclusions are mainly effective in reducing the normalized relaxation rate S (≡ -d ln M/d ln t) at low fields [birr(≡ μ0Ha/Birr)≲0.1] and at high fields (birr≳0.4). A suppression in S is observed in an intermediate field region (0.1≲birr≲0.4) for the samples exhibiting secondary peak effect, suggesting a relation between the peak and the suppression.
| Original language | English |
|---|---|
| Article number | 064518 |
| Pages (from-to) | 645181-645187 |
| Number of pages | 7 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 64 |
| Issue number | 6 |
| Publication status | Published - 2001 Aug 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Effect of nonsuperconducting secondary inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ (R = Nd and Yb) bulk superconductors at high temperatures. / Mochida, T.; Chikumoto, N.; Murakami, Masato.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 64, No. 6, 064518, 01.08.2001, p. 645181-645187.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Effect of nonsuperconducting secondary inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ (R = Nd and Yb) bulk superconductors at high temperatures
AU - Mochida, T.
AU - Chikumoto, N.
AU - Murakami, Masato
PY - 2001/8/1
Y1 - 2001/8/1
N2 - We have studied the effect of nonsuperconducting inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ (R=Nd and Yb) bulk superconductor in a high - temperature region (77≤T ≤90 K). It is found that nonsuperconducting inclusions are mainly effective in reducing the normalized relaxation rate S (≡ -d ln M/d ln t) at low fields [birr(≡ μ0Ha/Birr)≲0.1] and at high fields (birr≳0.4). A suppression in S is observed in an intermediate field region (0.1≲birr≲0.4) for the samples exhibiting secondary peak effect, suggesting a relation between the peak and the suppression.
AB - We have studied the effect of nonsuperconducting inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ (R=Nd and Yb) bulk superconductor in a high - temperature region (77≤T ≤90 K). It is found that nonsuperconducting inclusions are mainly effective in reducing the normalized relaxation rate S (≡ -d ln M/d ln t) at low fields [birr(≡ μ0Ha/Birr)≲0.1] and at high fields (birr≳0.4). A suppression in S is observed in an intermediate field region (0.1≲birr≲0.4) for the samples exhibiting secondary peak effect, suggesting a relation between the peak and the suppression.
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UR - http://www.scopus.com/inward/citedby.url?scp=0035421981&partnerID=8YFLogxK
M3 - Article
VL - 64
SP - 645181
EP - 645187
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 6
M1 - 064518
ER -