Preparation of Bi-Pb-Sr-Ca-Cu-O High Tc Thick Films on Ag or MgO Substrate with Superconductor Paste.

We report here on the development of composite thick films exhibiting hybrid superconducting and ferromagnetic properties, produced through a low-cost, fast, and versatile process. These films were made of high Tc cuprate superconductor Bi2Sr2(Ca,Y)2Cu3O10 (with Y:Ca ratio of 5%) and ferromagnetic perovskite La2/3Ba1/3MnO3, synthesized by melting-quenching annealing process on a MgO substrate. Curie temperature for La2/3Ba1/3MnO3 was determined (~336 K ) by magnetic field assisted thermogravimetric analysis (TGA), while superconducting behavior of Bi2Sr2(Ca,Y)2Cu3O10/MgO films was observed through temperature-dependent resistance measurements. Superconducting features in our hybrid compound were corroborated by temperature-dependent resistivity and magnetic susceptibility.

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Characteristics of Bi-2223 Thick Films on an MgO Substrate Prepared by a Coating Method.

TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) ◽

10.2221/jcsj.37.479 ◽

2002 ◽

Vol 37 (9) ◽

pp. 479-484

Author(s):

Michiharu Ichikawa ◽

Hiroyuki Kado ◽

Masatoyo Shibuya ◽

Masahiro Kojima ◽

Masakazu Kawahara ◽

...

Keyword(s):

Thick Films ◽

Coating Method ◽

Mgo Substrate

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Preparation and properties of high-Tc superconducting Tl-1223 thick films obtained by screen-printing method

Physica C Superconductivity ◽

10.1016/s0921-4534(00)00027-7 ◽

2000 ◽

Vol 331 (3-4) ◽

pp. 227-232 ◽

Cited By ~ 6

Author(s):

J Prażuch ◽

W.T König ◽

G Gritzner ◽

K Przybylski

Keyword(s):

Screen Printing ◽

Thick Films ◽

High Tc ◽

Screen Printing Method ◽

Printing Method

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Preparation of Superconducting Bi-Sr-Ca-Cu-O Printed Thick Films on MgO Substrate and Ag Metal Tape

Japanese Journal of Applied Physics ◽

10.1143/jjap.27.l1297 ◽

1988 ◽

Vol 27 (Part 2, No. 7) ◽

pp. L1297-L1299 ◽

Cited By ~ 26

Author(s):

Kazutomo Hoshino ◽

Hidefusa Takahara ◽

Masao Fukutomi

Keyword(s):

Thick Films ◽

Metal Tape ◽

Mgo Substrate

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MICROWAVE ABSORPTION STUDIES ON HIGH-Tc SUPERCONDUCTORS AND RELATED MATERIALS VI—NON-RESONANT MICROWAVE ABSORPTION IN ULTRA-THIN Bi-Sr-Ca-Cu-O FILMS—

Modern Physics Letters B ◽

10.1142/s0217984992000351 ◽

1992 ◽

Vol 06 (05) ◽

pp. 265-272 ◽

Cited By ~ 4

Author(s):

K. SUGAWARA ◽

T. SUGIMOTO ◽

D.J. BAAR ◽

Y. SHIOHARA ◽

S. TANAKA

Keyword(s):

Magnetic Field ◽

Microwave Absorption ◽

Signal Intensity ◽

Critical Magnetic Field ◽

High Tc Superconductors ◽

Temperature Relation ◽

High Tc ◽

Absorption Studies ◽

Increasing Temperature ◽

Mgo Substrate

Non-resonant microwave absorption (NRMA) studies have been done for Bi-Sr-Ca-Cu-O (BSCCO) films with thicknesses of 30 Å and 15 Å fabricated on MgO substrate by MOCVD. For the latter two kinds of samples have been fabricated: BSCCO/MgO and BiOx/BSCCO/MgO . NRMA signals have been detected up to about 70–75 K for all the samples. The lower critical magnetic field H c1 * of the 30 Å film was severely increased by the application of a magnetic field of several kGauss, whereas it is almost unaffected in the case of 15 Å films. H c1 * increases but the signal intensity decreases with increasing temperature for all the 30 Å and 15 Å samples. The temperature dependence of the intensity is quite different from that of thicker films (100 Å and 350 Å), in which the intensity vs. temperature relation has a peak (or peaks) at particular temperature(s).

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