Enhanced flux pinning in Bi-2212 single crystals by planar defects introduced via Ti-substitution

被引：28

作者：

Li, TW

Drost, RJ

Kes, PH

Traeholt, C

Zandbergen, HW

Hien, NT

Menovsky, AA

Franse, JJM

机构：

[1] LEIDEN UNIV, KAMERLINGH ONNES LAB, NL-2300 RA LEIDEN, NETHERLANDS

[2] DELFT UNIV TECHNOL, MAT SCI LAB, NL-2628 AL DELFT, NETHERLANDS

[3] UNIV AMSTERDAM, VAN DER WAALS ZEEMAN LAB, NL-1018 XE AMSTERDAM, NETHERLANDS

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1997年 / 274卷 / 3-4期

关键词：

critical current density; flux pinning; substitution effects; defect structure; single crystal growth;

D O I：

10.1016/S0921-4534(96)00699-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ti-doped Bi-2212 single crystals were grown by the travelling solvent floating zone technique. Concentrations of about 1 at% and 2 at% (with respect to Cu) were shown to be incorporated in the structure which leads to lowering of T-c to about 73 K from 85 K. High resolution microscopy revealed high densities of planar defects parallel to the a,c-planes. The flux pinning properties at elevated temperatures are significantly improved with respect to undoped single crystals.

引用

收藏

页码：197 / 203

页数：7

相关论文

共 25 条

[1] VORTEX CONFINEMENT BY COLUMNAR DEFECTS IN YBA2CU3O7 CRYSTALS - ENHANCED PINNING AT HIGH FIELDS AND TEMPERATURES [J].

CIVALE, L ;

MARWICK, AD ;

WORTHINGTON, TK ;

KIRK, MA ;

THOMPSON, JR ;

KRUSINELBAUM, L ;

SUN, Y ;

CLEM, JR ;

HOLTZBERG, F .

PHYSICAL REVIEW LETTERS, 1991, 67 (05) :648-651

[2] STRONG SHIFT OF THE IRREVERSIBILITY LINE IN BISMUTH AND THALLIUM BASED 2212 HTSC SINGLE-CRYSTALS IRRADIATED BY 6.0 GEV PB IONS [J].

HARDY, V ;

PROVOST, J ;

GROULT, D ;

HERVIEU, M ;

RAVEAU, B ;

DURCOK, S ;

POLLERT, E ;

FRISON, JC ;

CHAMINADE, JP ;

POUCHARD, M .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1992, 191 (1-2) :85-96

[3] SUPERCONDUCTIVITY IN BI2SR2CACU2O8+DELTA SINGLE-CRYSTALS DOPED WITH FE, NI, AND ZN [J].

HEDT, BV ;

LISSECK, W ;

WESTERHOLT, K ;

BACH, H .

PHYSICAL REVIEW B, 1994, 49 (14) :9898-9905

[4] THERMALLY ASSISTED FLUX FLOW AT SMALL DRIVING FORCES [J].

KES, PH ;

AARTS, J ;

VANDENBERG, J ;

VANDERBEEK, CJ ;

MYDOSH, JA .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1989, 1 (05) :242-248

[5]

KES PH, 1989, STUDIES HIGH TEMPERA, V4

[6] Vortex-lattice phase transitions in Bi2Sr2CaCu2O8 crystals with different oxygen stoichiometry [J].

Khaykovich, B ;

Zeldov, E ;

Majer, D ;

Li, TW ;

Kes, PH ;

Konczykowski, M .

PHYSICAL REVIEW LETTERS, 1996, 76 (14) :2555-2558

[7] EFFECT OF 5.3-GEV PB-ION IRRADIATION ON IRREVERSIBLE MAGNETIZATION IN Y-BA-CU-O CRYSTALS [J].

KONCZYKOWSKI, M ;

RULLIERALBENQUE, F ;

YACOBY, ER ;

SHAULOV, A ;

YESHURUN, Y ;

LEJAY, P .

PHYSICAL REVIEW B, 1991, 44 (13) :7167-7170

[8] THE ROLE OF SURFACE EFFECTS IN MAGNETIZATION OF HIGH-TC SUPERCONDUCTORS [J].

KOPYLOV, VN ;

KOSHELEV, AE ;

SCHEGOLEV, IF ;

TOGONIDZE, TG .

PHYSICA C, 1990, 170 (3-4) :291-297

[9] FLUX PINNING CHARACTERISTICS IN 180 MEV CU11+-IRRADIATED BI2SR2CACU2OX [J].

KUMAKURA, H ;

KITAGUCHI, H ;

TOGANO, K ;

MAEDA, H ;

SHIMOYAMA, J ;

OKAYASU, S ;

KAZUMATA, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1992, 31 (10A) :L1408-L1410

[10] ANISOTROPY OF CRITICAL CURRENT-DENSITY IN TEXTURED BI2SR2CA1CU2OX TAPES [J].

KUMAKURA, H ;

TOGANO, K ;

MAEDA, H ;

KASE, J ;

MORIMOTO, T .

APPLIED PHYSICS LETTERS, 1991, 58 (24) :2830-2832