Magnetic susceptibility and critical currents of (Tl0.5Pb0.5) Sr2(Ca0.9Gd0.1)Cu2Oy superconductor

• Autorzy: Woch W M , Zalecki R , Kołodziejczyk A , Sudra H , Gritzner G
• Języki publikacji: EN

Abstrakty

EN

The (Tl0.5Pb0.5)Sr2(Ca0.9Gd0.1)Cu2Oy superconductor has been fabricated by the wet chemical gel technique. The structure of the superconductor was determined as a Tl-1212 tetragonal structure by X-ray diffraction technique. Magnetic properties of the specimen were characterized by measurements of the real and imaginary parts of ac susceptibility in function of the temperature and of the ac applied magnetic field. The peaks of imaginary part of ac susceptibility shifted to lower temperatures upon increasing magnetic field. Taking advantage of the Bean model, the critical current densities of the samples were calculated. The temperature dependences of the critical current were successfully fitted using the powerlaw from thermally activated magnetic flux creep model.

Słowa kluczowe

EN

Tl Gd doped 1212 superconductor; magnetic measurements; critical current

• Wydawca: Wrocław University of Science and Technology
• Czasopismo: Materials Science Poland
• Rocznik: 2008
• Tom: Vol. 26, No. 4
• Strony: 1092--1996
• Opis fizyczny: Bibliogr. 11 poz., wykr.

Twórcy

autor

Woch W M

• Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, PL 30-059, Kraków, Poland,

autor

Zalecki R

• Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, PL 30-059, Kraków, Poland

autor

Kołodziejczyk A

• Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, PL 30-059, Kraków, Poland

autor

Sudra H

• Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, A 4040 Linz, Austria

autor

Gritzner G

• Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, A 4040 Linz, Austria

Bibliografia

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• [10] WOCH W.M., ZALECKI R., KOŁODZIEJCZYK A., CHMIST J., HEIML O., GRITZNER G., Acta Phys. Polon. A, 106 (2004) 785.
• [11] MÜLLER K.A.,TAKASHIGE M.,BEDNORZ J.G.,Phys. Rev. Lett., 58 (1987), 1143