Combined effect of Pr and Mn on the resistivity and low-field AC susceptibility of Y0.95Pr0.05Ba2(Cu1-xMnx)3O7-δ superconductors for x ≤ 0.02

被引：6

作者：

Gahtori, Bhasker ^{[1
]}

Lal, R.

Ahsan, M. A. H.

Shyam, Radhe

Rao, Ashok

Agarwal, S. K.

机构：

[1] Natl Phys Lab, Supercond Div, New Delhi 110012, India

[2] Jamia Millia Islamia, Dept Phys, New Delhi 110025, India

[3] Sikkim Manipal Inst Technol, Dept Appl Sci, Sikkim 737132, India

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2006年 / 449卷 / 02期

关键词：

residual resistivity; susceptibility;

D O I：

10.1016/j.physc.2006.08.002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Resistivity and low-field (40 A/m) susceptibility measurements are performed on the samples of Y0.95Pr0.05Ba2(Cu1-xMnx)(3)O7-delta (x <= 0.02). It has been observed that above x = 0.005 resistivity decreases drastically in the presence of Pr atoms. Analyzing this feature it has been argued that potential scattering alone is inadequate for explaining the resistivity behaviour. Prominent role of the electronic effects is expected for increasing Mn content. Analyzing the imaginary part of ac susceptibility at the peak temperatures it has been found that the superconducting volume fraction f(g) is 0.12 for x = 0, but reduces drastically to 0.03 for x = 0.005. For other values of x, f(g) is higher than 0.12. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：128 / 132

页数：5

共 22 条

[1] NEUTRON-DIFFRACTION STUDIES OF CA-PR DOPED YBA2CU3O7-DELTA [J].

ANDERSSON, M ;

RAPP, O ;

TELLGREN, R .

PHYSICA C, 1993, 205 (1-2) :105-110

[2] A quantitative understanding for the Tc suppression in Y1-xPrxBa2Cu3O7 [J].

Cao, GH ;

Yu, YB ;

Jiao, ZK .

PHYSICA C, 1998, 301 (3-4) :294-300

[3] AC SUSCEPTIBILITY AND INTERGRANULAR CRITICAL CURRENT-DENSITY OF HIGH-TC SUPERCONDUCTORS [J].

CHEN, DX ;

NOGUES, J ;

RAO, KV .

CRYOGENICS, 1989, 29 (08) :800-808

[4] GRANULAR AND SUPERCONDUCTING-GLASS PROPERTIES OF THE HIGH-TEMPERATURE SUPERCONDUCTORS [J].

CLEM, JR .

PHYSICA C, 1988, 153 :50-55

[5] SUPERCONDUCTING AND NORMAL STATE PROPERTIES OF Y1-XPRXBA2CU307-DELTA, Y1-XNAXBA2CU307-DELTA [J].

DALICHAOUCH, Y ;

TORIKACHVILI, MS ;

EARLY, EA ;

LEE, BW ;

SEAMAN, CL ;

YANG, KN ;

ZHOU, H ;

MAPLE, MB .

SOLID STATE COMMUNICATIONS, 1988, 65 (09) :1001-1006

[6] MICROSTRUCTURAL FEATURES AND SUPERCONDUCTING PROPERTIES OF MN-DOPED YBA2CU3O7-DELTA [J].

DHINGRA, I ;

KASHYAP, SC ;

DAS, BK .

JOURNAL OF MATERIALS RESEARCH, 1994, 9 (11) :2771-2777

[7] UNUSUAL ELECTRONIC-STRUCTURE OF PRBA2CU3O7 [J].

FEHRENBACHER, R ;

RICE, TM .

PHYSICAL REVIEW LETTERS, 1993, 70 (22) :3471-3474

[8] SUPPRESSION OF SUPERCONDUCTIVITY IN PRBA2CU3O7 - 4-F AND CONDUCTION-BAND HYBRIDIZATION EFFECT [J].

GUO, GY ;

TEMMERMAN, WM .

PHYSICAL REVIEW B, 1990, 41 (10) :6372-6378

[9] Suppression of superconductivity and normal state electrical transport in Y1-xPrxBaSrCu3O7-δ and systems [J].

Gupta, A ;

Sedky, A ;

Narlikar, AV .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2004, 241 (04) :895-901

[10] Resonant photoemission spectroscopy of the quenched superconductivity system:: Y1-xPrxBa2Cu3O7-δ single crystals -: art. no. 052503 [J].

Kang, JS ;

Haffner, S ;

Olson, CG ;

Kim, JH ;

Maple, MB ;

Kwon, SK ;

Min, BI .

PHYSICAL REVIEW B, 2002, 66 (05) :1-4

← 1 2 3 →