Journal ArticleDOI
Superconducting materials for electronic applications
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TLDR
In this paper, a measurement of magnetic fields with Hall-and SQUID-sensors was done with the help of a specially constructed measuring apparatus with Hall and SQUID sensors.Abstract:
Shielding elements were made of bulk material or thick films. The bulk route is determined by large-scale processing. After an axial or isostatic pressing of the fine-grained powder composed of BSCCO, Y-123 and Nd-123, the material was sintered/textured and annealed in special programs. Then the characterization of the materials and a measurement of magnetic fields was done with the help of a specially constructed measuring apparatus with Hall- and SQUID-sensors. The objective of the thick film route was to get large, coated superconducting work pieces of YBCO and BSCCO (plates or cylinders) with current density of >1000 kA/cm 2 (and/or a shielding effect of >1 mT). Thick films were made by plasma spraying and paste technology. Substrates used were ZrO 2 , MgO, SrTiO 3 , BaZrO 3 and others. In some cases the work pieces were treated with laser radiation. After laser and thermal treatment the surface was more dense, the cracks were cured and the current density was increased by more than two times.read more
Citations
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The preparation of c-axis epitaxial Bi-2212 films on STO(100) by sol-gel method
TL;DR: Yu et al. as discussed by the authors proposed a method to use anisotropic and texture matrices to solve the problem of texture matting in the context of Chinese Academia, and showed that the texture mat can be used to obtain a better texture mat.
Journal ArticleDOI
Structural and morphological characterization of YBa2Cu3O7-x films deposited by screen printing from YBa2Cu3O6.962 superconductor in bulk
J. M. Juarez-Lopez,A. Guillén-Cervantes,J.G. Quiñones-Galván,K.E. Nieto-Zepeda,O. Zelaya-Angel,José Santos-Cruz,E. Díaz-Valdés,Gerardo Contreras-Puente,F. de Moure-Flores +8 more
Journal ArticleDOI
YBa2Cu3O7 melt textured thick films grown by infiltration process on YSZ substrate prepared by sol–gel method
TL;DR: In this paper, polycrystalline yttria-stabilized zirconia (YSZ) compacts with a relative density of 97% were prepared by the two-step sol-gel synthesis from zIRconium (IV)-propoxide and yttrium chloride.
Journal ArticleDOI
Improvement in the frequency characteristics of RF magnetic shielding: effects of the superposition of two ferrite plates over a BPSCCO plate
TL;DR: In this paper, the authors applied a Bi-Pb-Sr-Ca-Cu-O (BPSCCO) plate to the far field region to realize shielding over a broadband frequency region of 1 MHz to 3 GHz.
Three-dimensional calculations of the magnetic fields in a finite superconducting hollow cylinder in an applied axial magnetic field
TL;DR: In this paper, a set of selfconsistent coupled-integral equations for the local magnetic flux and current distributions in a finite superconducting hollow cylinder under an axial magnetic field has been directly derived by using the Biot-Savart law within the framework of the critical-state model.
References
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Journal ArticleDOI
Synthesis of cuprate superconductors
TL;DR: In this paper, the authors discuss the synthesis of various types of cuprate superconductors and point out the advantages and disadvantages of the different methods and points out the disadvantages of different methods.
Journal ArticleDOI
Magnetic shielding by superconducting Y-Ba-Cu-O hollow cylinders
TL;DR: In this article, the authors measured the magnetic field H' at the center of a hollow of sintered Y-Ba-Cu-O superconductor as a function of applied field H, temperature, tube length, and tube wall thickness.
Journal ArticleDOI
Integrated high‐Tc multiloop magnetometer
F. Ludwig,E. Dantsker,Reinhold Kleiner,Dieter Koelle,John Clarke,S. Knappe,Dietmar Drung,Hans Koch,Neil McN. Alford,Tim W. Button +9 more
TL;DR: In this paper, two integrated, thin-film multiloop magnetometers (fractional turn SQUIDs) have been fabricated using a YBa2Cu3O7−x−SrTiO3•YBa2cu3O 7−x multilayer process, with 16 parallel loops, an outer diameter of 7 mm and effective areas of 1.84 and 1.89 mm2.
Journal ArticleDOI
Magnetic shielding using high-Tcsuperconductor
TL;DR: In this article, the magnetic shielding has been investigated by measuring magnetic coupling between primary and secondary coils separated by a high-Tc superconductor, which can explain the existence of superconductivity related surface current, which flows out from front to rear surface to couple with the secondary coil.
Journal ArticleDOI
Magnetic shielding properties of YBa2Cu3O7-x thick films deposited on silver cylinders with the continuous detonation spray technique
TL;DR: The magnetic shielding properties of YBa 2 Cu 3 O 7− x coatings, sprayed on silver cylinders with the continuous detonation spray (CDS) technique, have been investigated in weak magnetic fields.