'Magnetoscan': a modified Hall probe scanning technique for the detection of inhomogeneities in bulk high temperature superconductors

被引：61

作者：

Eisterer, M ^{[1
]}

Haindl, S ^{[1
]}

Wojcik, T ^{[1
]}

Weber, HW ^{[1
]}

机构：

[1] Univ Vienna, Atominst, A-1020 Vienna, Austria

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2003年 / 16卷 / 11期

关键词：

D O I：

10.1088/0953-2048/16/11/005

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a novel technique for the investigation of local variations of the critical current density in large bulk superconductors. In contrast to the usual Hall probe scanning technique, the sample is not magnetized as a whole before the scan, but locally by a small permanent magnet, which is fixed near the Hall probe, during the scanning process. The resulting signal can be interpreted as a qualitative measure of the local shielding currents flowing at the surface.

引用

收藏

页码：1282 / 1285

页数：4

相关论文

共 8 条

[1] Current distribution maps in large YBCO melt-textured blocks [J].

Carrera, M ;

Amorós, J ;

Carrillo, AE ;

Obradors, X ;

Fontcuberta, J .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 385 (04) :539-543

[2] Growth related Y2BaCuO5 particle concentration micro-inhomogeneity in the growth sectors of TSMG YBa2Cu3O7/Y2BaCuO5 bulk superconductor [J].

Diko, P ;

Zmorayova, K ;

Granados, X ;

Sandiumenge, F ;

Obradors, X .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 384 (1-2) :125-129

[3] INFLUENCE OF Y2BACUO5 PARTICLES ON THE MICROSTRUCTURE OF YBA2CU3O7-X (123)-Y2BACUO5(211) MELT-TEXTURED SUPERCONDUCTORS [J].

DIKO, P ;

GAWALEK, W ;

HABISREUTHER, T ;

KLUPSCH, T ;

GORNERT, P .

PHYSICAL REVIEW B, 1995, 52 (18) :13658-13664

[4] Study of inhomogeneities in the flux density distribution of big monolithic (RE)Ba2Cu3O7-δ melt-textured superconductors [J].

Gonzalez-Arrabal, R ;

Eisterer, M ;

Weber, HW .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (08) :4734-4738

[5] PREPARATION OF A HIGH-JC YBCO BULK SUPERCONDUCTOR BY THE PLATINUM DOPED MELT GROWTH METHOD [J].

OGAWA, N ;

HIRABAYASHI, I ;

TANAKA, S .

PHYSICA C, 1991, 177 (1-3) :101-105

[6]

Qin MJ, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.024516

[7] HIGH-CURRENT DENSITY IN BULK YBA2CU3OX SUPERCONDUCTOR [J].

SALAMA, K ;

SELVAMANICKAM, V ;

GAO, L ;

SUN, K .

APPLIED PHYSICS LETTERS, 1989, 54 (23) :2352-2354

[8] Subgrain boundary structure in melt-textured RBa2Cu3O7 (R = Y,Nd):: Limitation of critical currents versus flux pinning -: art. no. 184515 [J].

Sandiumenge, F ;

Vilalta, N ;

Rabier, J ;

Obradors, X .

PHYSICAL REVIEW B, 2001, 64 (18)