Structural and Transport Properties of the (Bi1.6Pb0.5)(Sr2-xLux)Ca1.1Cu2.1O8+δ Superconductor

被引：2

作者：

Sarun, Pallian Murikkoli ^{[1
]}

Vinu, Surendran ^{[1
]}

Shabna, Razia ^{[1
]}

Anooja, Jayakumari Babu ^{[1
]}

Aswathy, Pillai Mohan ^{[1
]}

Syamaprasad, Upendran ^{[1
]}

机构：

[1] CSIR, Natl Inst Interdisciplinary Sci & Technol, Trivandrum 695019, Kerala, India

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2010年 / 20卷 / 02期

关键词：

Critical current density; critical temperature; superconductor; CRITICAL-CURRENT-DENSITY; RESISTIVITY ANISOTROPY; TC;

D O I：

10.1109/TASC.2009.2039793

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：

The effects of Lu-doping on phase evolution, microstructure, electrical, and superconducting properties of Bi-2212 have been studied. The results show that Lu+3 ions enter into the crystal structure in place of Sr+2 ions and, hence, reduce the hole concentration in the electronic structure of the system. Lu-doping results in the reduction of c-axis length and increases the Josephson coupling between the Cu-O-2 layers at lower Lu-contents. The critical temperature T-c and the critical current density J(c) are significantly enhanced for optimum Lu concentration. The variations in the electrical and superconducting properties are due to the structural and electronic inhomogeneities and changes in charge carrier concentration due to Lu-doping in the (Bi, Pb)-2212 superconductor.

引用

页码：61 / 65

页数：5

共 21 条

[1] Methods of introduction of MgO nanoparticles into Bi-2212/Ag tapes [J].

Agranovski, IE ;

Ilyushechkin, AY ;

Altman, IS ;

Bostrom, TE ;

Choi, M .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2006, 434 (01) :115-120

[2] Improvement of magnetic properties in Bi-2212 ceramics by fluorine doping [J].

Amira, A ;

Mosbah, MF ;

Molinié, P ;

Leblanc, A .

SOLID STATE SCIENCES, 2005, 7 (01) :53-57

[3] Critical current density and flux pinning in a Bi1.7Pb0.4Sr2-xLaxCa1.1Cu2.1Oy system [J].

Biju, A. ;

Sarun, P. M. ;

Vinu, S. ;

Guruswamy, P. ;

Syamaprasad, U. .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2007, 20 (08) :781-784

[4] Critical current densities in Bi-2212 thick films [J].

Buhl, D ;

Lang, T ;

Cantoni, M ;

Risold, D ;

Hallstedt, B ;

Gauckler, LJ .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1996, 257 (1-2) :151-159

[5] Oxide superconductors [J].

Cava, RJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2000, 83 (01) :5-28

[6] Effect of chemical inhomogeneity in bismuth-based copper oxide superconductors [J].

Eisaki, H ;

Kaneko, N ;

Feng, DL ;

Damascelli, A ;

Mang, PK ;

Shen, KM ;

Shen, ZX ;

Greven, M .

PHYSICAL REVIEW B, 2004, 69 (06)

[7] TEXTURED BSCCO/AG SUPERCONDUCTING MICROCOMPOSITES WITH IMPROVED CRITICAL CURRENT-DENSITY THROUGH MECHANICAL DEFORMATION [J].

GAO, W ;

VANDERSANDE, JB .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1992, 5 (05) :318-326

[8] Structural origin of the low superconducting anisotropy of Bi1.7Pb0.4Sr2Ca0.9Cu2O8 crystals -: art. no. 184522 [J].

Gladyshevskii, R ;

Musolino, N ;

Flükiger, R .

PHYSICAL REVIEW B, 2004, 70 (18) :1-8

[9] ELECTRONIC-STRUCTURE CALCULATION OF THE HOLE-CARRIER-DENSITY DISTRIBUTION IN BI2SR2CUO6, BI2SR2CACU2O8, AND BI2SR2CA2CU3O10 SUPERCONDUCTORS [J].

GUPTA, RP ;

GUPTA, M .

PHYSICAL REVIEW B, 1994, 49 (18) :13154-13159

[10] Phase relations in the Bi-Sr-Ca-Cu-M-O (M = Y, Dy, Ho, Er, Tm, Yb, Lu) systems [J].

Kazin, PE ;

Zaitsev, DD ;

Tret'yakov, YD ;

Jansen, M .

INORGANIC MATERIALS, 2001, 37 (08) :812-816

← 1 2 3 →