TY - JOUR
T1 - Mechanism of a high irreversibility field for (Nd, Eu,Gd)Ba 2Cu3O7 bulk
AU - Awaji, Satoshi
AU - Isono, Nobuyuki
AU - Watanabe, Kazuo
AU - Muralidhar, Miryala
AU - Murakami, Masato
AU - Koshizuka, Naoki
AU - Noto, Koshichi
PY - 2005/6
Y1 - 2005/6
N2 - In order to study the mechanism of the high irreversibility field, we measured the high field transport properties for bulk NEG123 samples with high irreversibility field. It was found that the Bose glass behavior is observed for both NEG123 bulk samples with 3% and 40% NEG211 additions. However, the 40%NEG211 sample with a low irreversibility field showed a higher effective matching field of the c-axis correlated disorder than the 3%NEG211 sample with a high irreversibility field. It is suggested that the c-axis correlation varies among samples and the strong correlation along the c-axis, which may arise from the alignment of the RE-rich NEG211 clusters, is important for the realization of the high irreversibility field.
AB - In order to study the mechanism of the high irreversibility field, we measured the high field transport properties for bulk NEG123 samples with high irreversibility field. It was found that the Bose glass behavior is observed for both NEG123 bulk samples with 3% and 40% NEG211 additions. However, the 40%NEG211 sample with a low irreversibility field showed a higher effective matching field of the c-axis correlated disorder than the 3%NEG211 sample with a high irreversibility field. It is suggested that the c-axis correlation varies among samples and the strong correlation along the c-axis, which may arise from the alignment of the RE-rich NEG211 clusters, is important for the realization of the high irreversibility field.
KW - Bose glass
KW - C-axis correlated disorder
KW - Critical exponent
KW - Irreversibility field
KW - RE123
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U2 - 10.1109/TASC.2005.849431
DO - 10.1109/TASC.2005.849431
M3 - Article
AN - SCOPUS:22044433595
SN - 1051-8223
VL - 15
SP - 3786
EP - 3789
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 2 PART III
ER -