Superconducting properties of MgB 2 thin films fabricated by ultrasonic spray pyrolysis method

Prof. Dr. M. Eyyuphan YAKINCI İnönü Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü

Malatya

İYTE-2011 Prof. Dr. M. Eyyuphan YAKINCI İnönü Üniversitesi-Malatya

Superconducting properties of MgB2 thin films fabricated by ultrasonic spray pyrolysis method

outline

• Mechanism and Experimental set up• Results


• MgB2 superconducting nano-sized powders have been successfully prepared by 2.4 MHz Ultrasonic Spray Pyrolysis (USP) system using H3BO4 and MgCl2 chemical solutions.

• The average grain size was found to be 77 nm. The best superconducting property was obtained to be 39.3 and 38.1 K for Tc and Tzero, respectively. The Jmag results obtained from the M-H curves were found to be 2.83x106 A/cm-2 which is quite comparable with the commercially available high purity MgB2 powders.

Mechanism and Experimental setup


Results



Figure 3 XRD measurement result of pelletized nano powders of MgB2


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Figure 4 R-T measurement result of pelletized and pre-heated nano powders of MgB2


Figure 5 M-H measurement result of pelletized and pre-heated nano powders of MgB2

S.İ 100 yıl etkinlikleri, Ankara Üniversitesi-2011 Prof. Dr. M. Eyyuphan YAKINCI İnönü Üniversitesi-Malatya

Figure 6 Jcmag results of pelletized and pre-heated nano powders of MgB2

İYTE -2011 Prof. Dr. M. Eyyuphan YAKINCI İnönü Üniversitesi-Malatya

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Superconducting properties of MgB 2 thin films fabricated by ultrasonic spray pyrolysis method