Mechanism of a high irreversibility field for (Nd, Eu, Gd)Ba2Cu3O7 bulk

被引：4

作者：

Awaji, S ^{[1
]}

Isono, N

Watanabe, K

Muralidhar, M

Murakami, M

Koshizuka, N

Noto, K

机构：

[1] Tohoku Univ, IMR, High Field Lab Supercond Mat, Sendai, Miyagi 9808577, Japan

[2] ISTEC, Supercond Res Lab, Tokyo 1050023, Japan

[3] Shibaura Inst Technol, Dept Mat Sci & Engn, Tokyo 1050023, Japan

[4] Iwate Ind Promot Ctr, Morioka, Iwate 0200852, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期

关键词：

Bose glass; c-axis correlated disorder; critical exponent irreversibility field; RE123;

D O I：

10.1109/TASC.2005.849431

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：3786 / 3789

页数：4

共 16 条

[1] Bose glass state in bulk (Nd,Eu,Gd)Ba2Cu3Ox with a high irreversibility field -: art. no. 214522 [J].

Awaji, S ;

Isono, N ;

Watanabe, K ;

Murakami, M ;

Muralidhar, M ;

Koshizuka, N ;

Noto, K .

PHYSICAL REVIEW B, 2004, 69 (21) :214522-1

[2] High magnetic field transport properties of (Nd, Eu, Gd)Ba2Cu3Ox bulk [J].

Awaji, S ;

Isono, N ;

Watanabe, K ;

Muralidhar, M ;

Murakami, M ;

Koshizuka, N ;

Noto, K .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2004, 17 (02) :S6-S9

[3] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].

BEAN, CP .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :31-+

[4] COLUMNAR-DEFECT-INDUCED RESISTIVITY MINIMA AND BOSE GLASS SCALING OF LINEAR DISSIPATION IN TL2BA2CACU2O8 EPITAXIAL-FILMS [J].

BUDHANI, RC ;

HOLSTEIN, WL ;

SUENAGA, M .

PHYSICAL REVIEW LETTERS, 1994, 72 (04) :566-569

[5]

CRABTREE G, 2003, HDB SUPERCONDUCTING, V2, P173

[6] THERMAL FLUCTUATIONS, QUENCHED DISORDER, PHASE-TRANSITIONS, AND TRANSPORT IN TYPE-II SUPERCONDUCTORS [J].

FISHER, DS ;

FISHER, MPA ;

HUSE, DA .

PHYSICAL REVIEW B, 1991, 43 (01) :130-159

[7] Critical properties of Bose-glass superconductors [J].

Lidmar, J ;

Wallin, M .

EUROPHYSICS LETTERS, 1999, 47 (04) :494-500

[8] New type of vortex pinning structure effective at very high magnetic fields [J].

Muralidhar, M ;

Sakai, N ;

Chikumoto, N ;

Jirsa, M ;

Machi, T ;

Nishiyama, M ;

Wu, Y ;

Murakami, M .

PHYSICAL REVIEW LETTERS, 2002, 89 (23)

[9] Optimization of matrix chemical ratio for high flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3Oy [J].

Muralidhar, M ;

Jirsa, M ;

Sakai, N ;

Murakami, M .

APPLIED PHYSICS LETTERS, 2001, 79 (19) :3107-3109

[10] Anomalous vortex liquid-to-glass transition line in twinned YBa2Cu3O7-δ -: art. no. 014515 [J].

Naito, T ;

Iwasaki, H ;

Nishizaki, T ;

Kobayashi, N .

PHYSICAL REVIEW B, 2004, 70 (01) :014515-1

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